LE POINT SUR LA BRUCELLOSE

La lutte pour l'eradication de la brucellose dans le cheptel canadien connait des progres constants. Maintenant que l'Ontario a 'te declare region a faible incidence, toutes les provinces ont acquis le statut soit de region a faible incidence soit de region exempte de brucellose. Le I er aout 1980, 152 troupeaux etaient en quarantaine a cause de cette maladie au Canada, ce qui represente une baisse appreciable par rapport aux 257 troupeaux en quarantaine un an plus t6t. Reconnaissant la necessite d'exercer un contr6le permanent du mouvement des troupeaux, la Direction generale de la Production et de l'Inspection des aliments a recemment adopte plusieurs mesures, parmi lesquelles, l'obligation de detenir un permis officiel. Aux termes du nouveau reglement, les trois provinces des Prairies ont ete regroupees en une region designee a faible incidence et les quatre provinces de I'Atlantique en une zone exempte de brucellose. De leur c6te, l'Ontario et le Quebec ont ete classes regions A faible incidence et la Colombie-Britannique, zone exempte de la maladie. Le transport du betail d'une region a l'autre necessitera l'obtention d'un permis a certaines exceptions pres, par exemple lorsque les animaux passent d'une region exempte de brucellose a une region voisine a faible incidence. Cette mesure touche le betail expedie de la Colombie- Britannique aux provinces des Prairies et des provinces de l'Atlantique au Quebec. I1 ne faudra pas de permis pour expedier les bovins d'engrais et d'abattage des Prairies vers l'Ontario et le Quebec, ni pour le deplacement du betail entre l'Ontario et le Quebec. Par contre, un permis devra etre obtenu avant que les animaux ne quittent ces provinces pour une autre region. Les permis sont emis par les bureaux d'inspection veterinaire du ministere de l'Agriculture du Canada. Les epreuves sanguines necessaires au depistage de la brucellose demeurent les memes. Les animaux expedies d'une zone exempte de brucellose a l'autre ou d'une zone exempte a une zone a faible incidence n'ont pas 'a subir d'epreuve sanguine. Les animaux expedies d'une region a faible incidence a une region exempte et qui sont admissibles aux epreuves doivent encore subir deux epreuves effectuees a 90-180j ours d'intervalle ainsi qu'une epreuve de verification une fois arrives a destination. Tous les sujets admissibles aux epreuves, expedies d'une region a faible incidence a l'autre doivent etre accompagnes d'un certificat prouvant qu'ils ont reagi negativement a un test effectue moins de 30 jours auparavant. Bien que, comme auparavant, les sujets des troupeaux classes exempts n'aient pas a subir d'epreuve sanguine, ils doivent etre accompagnes d'un permis comme les autres troupeaux. Les Etats-Unis ont recemment reconnu le statut de zone exempte de brucellose pour la Colombie-Britannique et les provinces de l'Atlantique. Les troupeaux directement exportes de ces zones vers les Etats-Unis n'ont donc plus besoin que d'un certificat prouvant qu'ils ont reagi negativement a une epreuve brucellique moins de 30 jours avant leur introduction dans ce pays. Pour obtenir plus d'informations sur le programme d'eradication de la brucellose, veuillez vous adresser aux veterinaires-de-district du ministere de l'Agriculture du Canada.

Prepare par: La Division de la protection de la sante des animaux Direction generale de la Production et de rlnspection des aliments | Ministere de rAgriculture du Canada ISSN 0008-5286 THE CANADIAN VETERINARY LA REVUE VtTERINAIRE JOURNAL CANADIENNE Volume 21 December-adcemDre No. 12

Papers written in either English or French, dealing La Revue accepte pour publication eventuelle tout with an aspect of applied veterinary medicine will be article original, redige en franqais ou en anglais, et trai- considered for publication provided they are not being tant de sujets pratiques en medecine veterinaire. La submitted elsewhere. Authors should be guided by the presentation devra etre conforme aux "Directives aux -Instructions to Authors" and recent issues of this jour- auteurs" et au protocole qu'on retrouvera dans les num- nal. All manuscripts are subject to editorial action and to eros recents de la Revue. Tout manuscrit sera sujet a review for adequacy of content. revision scientifique et aux exigences de l'edition. Authors should adhere to the guidelines for "Care of Les auteurs devraient se referer aux directives "Soins a Experimental Animals, A Guide for Canada." prodiguer aux animaux d'experience, guide pour le Canada."

CANADIAN VETERINARY MEDICAL ASSOCIATION EDITORIAL BOARD BUREAU DE REDACTION DE L'ASSOCIATION CANADIENNE DES VETtRINAIRES

J.F. Frank (Chairman-President), Ottawa, Ontario. Miss Nella McKellar (Managing Editor-Gerante a la redaction). M. Beauregard, D. P. Gray, L.P. Phaneuf, O.M. Radostits, J.H. Reed and R.G. Thomson.

CANADIAN VETERINARY JOURNAL - REVUE VETERINAIRE CANADIENNE Editor- Ridacteur L.P. Phaneuf, St. Hyacinthe. Quebec Managing Editor-Gerante a la ridaction Miss Nella McKellar, Ottawa, Ontario Associate Editor- Redacteur adjoint J.H. Reed, Guelph, Ontario News Editor-Ridacleur aux nouvelles T. Lloyd Jones, Toronto, Ontario Assistant Edilors-Assistants a la redaction W.T. Nagge. Fairview, Alberta O. M. Radostits, Saskatoon, Saskatchewan G.G. Smith, Surrey, B.C. J.M. Walker, Ottawa, Ontario

CANADIAN VETERINARY MEDICAL ASSOCIATION EXECUTIVE COMMITTEE COMITt EXECUTIF DE L'ASSOCIATION CANADIENNE DES VETERINAIRES D.L.T. Smith, Saskatoon, Saskatchewan (President), P. Guay, Saint-Hyacinthe, Quebec (Vice-president and President-elect-Vice-pr6sident et President-elu). G.A. Irving, Moncton, New Brunswick, D.C. Hargrave, Brooks, Alberta and K.R. Macdonald, Abbotsford, British Columbia (Members ofExecutive Committee-Membres du comite executi). Donald Landry, Ottawa, Ontario (Secretary-treasurer-Secretaire-tresorier). Sylvia Burns (Executive Secretary and Registrar-Secretaire gen*ral et Archiviste). L.P.E. Choquette, Aylmer, Quebec (Adviser-Conseiller).

0Canadian Veterinary Medical Association 1980 0L'Association canadienne des veterinaires 1980 Published monthly by the Canadian Veterinarv Publication mensuelle de lrAssociation canadienne Medical Association des v6t6rinaires Address all correspondence to: Adresser toute correspondance a: Canadian Veterinary Journal La Revue veterinaire canadienne 360 Bronson Avenue 360 Bronson Avenue Ottawa, Ontario K I R 6J3 Telephone: 613-236-1162 Ottawa. Ontario K I R 6J3 Telephone: 613-236-1162 Subscriptions: $20.00 per year Abonnements: $20.00 par annee Printed at M.O.M. Printing, Ottawa, Ontario Imprimee a M.O.M. Printing, Ottawa. Ontario Advertising Representative/ Representant de la publicite: Lex Limited, 190 Main Street. Unionville. Ontario L3R 2G9. Telephone 416-297-2030

iii ISSN 0008-5286 THE CANADIAN VETERINARY LA REVUE VSTtRINAIRE

, JOURNAL CANADIENNE Volume 21 December-decembre 1980 No. 12

Concentrations seriques et biodisponibilite sanguine du I N T R O D U C T IO N chloramphenicol chez les bovins Le chloramphenicol a deja fait l'objet de tres nombreuses publications en medecine veterinaire. Son large spec- tre antibacterien en fait un antibio- P. ARCHIMBAULT, C. BOUTIER ET tique frequemment utilise aussi bien 'R. FELLOUS* par voie orale que parenterale (1,3,4,5). La plupart des auteurs s'ac- cordent a d6finir sa concentration san- guine therapeutique minimale comme devant etre superieure ou egale a 5 Mg! mL. L'administration intramuscu- laire (I.M.) de chloramphenicol ne permet pas d'atteindre cette valeur chez la vache laitiere lorsque les poso- R t S U Mt S U M M A R Y logies appliquees sont de rordre de 11 Les auteurs ont compare les concen- Serum concentrations and factors et 20 mg/ kg (4,8,9). Nouws et Ziv (7), trations seriques et les facteurs affec- affecting the blood bioavailability lors d'une etude recente de biodispo- tant la biodisponibilite sanguine du of chloramphenicol in bovine nibilite sanguine de diverses prepara- chloramphenicol apres administration The authors have compared the serum tions contenant exclusivement du intramusculaire de preparations concentrations and the factors affect- chloramphenicol, mettent en relief des commerciales canadiennes contenant ing blood bioavailability of chloram- differences significatives dues aux 500 mg/ mL d'antibiotique. Les ani- phenicol after intramuscular adminis- modalites d'administration ainsi qu'a maux (vaches laitieres et genisses) tration of canadian commercial la nature des excipients utilises. regurent chaque produit (20 mg/kg) preparations containing 500 mg/ mL I1 apparait que la biodisponibilite en un ou deux sites d'injection. Les of antibiotic. par voie intramusculaire est faible prelvements s6riques, analyses par The animals (dairy cows and heif- (51,0% a 80,5% selon les preparations des methodes colorimetrique et ers) received each drug (20 mg/ kg) in et le mode d'administration). Selon ces microbiologique, montrerent qu'il one or two injection sites. The serum auteurs, la quantite de chloramph- existe des differences de concentra- samples, analysed by colorimetric or enicol disponible est augmentee en tions importantes entre les deux microbiological methods, showed that administrant le produit I.M. en deux methodes. considerable differences in concentra- sites d'injection a raison de 50 mg/ kg. L'evolution des facteurs de biodis- tion exist between the two methods. Nous avons entrepris la recherche ponibilite s'avera identique dans les The evolution of biodisponibility de la bioequivalence pouvant exister deux cas. I1 apparalt que des niveaux factors proved identical in both cases. entre trois preparations injectables a therapeutiques de chloramphenicol ne It appears that therapeutic levels of base de chloramphenicol disponibles sont atteints que par le produit A chloramphenicol are reached only by sur le marche canadien. Ces medica- durant quatre a cinq heures. La poso- drug A for four to five hours. ments sont strictement identiques, la logie habituelle (2 - 10 mg/kg) par The usual dosage (2-10 mg/ kg), by nature du solvant 6tant la seule dif- voie I.M. est insuffisante pour attein- intramuscular route, is not sufficient f6rence majeure entre les produits. dre des concentrations actives avec les to attain these active concentrations Cette etude nous a permis (a) de com- autres produits. Cependant, la varia- using the other drugs. However, the parer les concentrations sanguines de bilite importante obtenue durant 1'ex- important variability obtained during chloramphenicol obtenues par des perimentation, dont la valeur des the experiment and reflected in the methodes colorimetrique et microbio- ecarts-types est le reflet, n'a pas permis standard deviation values, has not logique (b) d'etablir les differents de conclure a une meilleure biodispo- proved that drug A has a better bio- parametres pharmacocinetiques chez nibilite du produit A sur le critere de la availability based on the criteria ofthe la vache laitiere et les genisses, et (c) de seule analyse microbiologique. only microbiological analysis. deduire les facteurs de biodisponibilite

*Centre de Recherches Biologiques Virbac - Z.I. de Carros -06510 Carros, France (Archimbault et Boutier) et Laboratoire de Chimie Organique, Institut Polytechnique Mediterraneen, Avenue Valrose - 06000 Nice, France (Fellous). Ce projet fut accompli grace A la collaboration technique de G. Ambroggi et C. Do Thi Thanh.

Can. vet. J. 21: 323-327 (December 1980) 323 9. ZIV G., E. BOGIN and F.G. SULMAN. Blood and and mastitic cows and ewes after intramuscu- chloramphenicol sodium succinate. Zentbl. milk levels of chloramphenicol in normal lar administration of chloramphenicol and Vetmed. A. 20: 801-811. 1973.

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NOT ENOUGH VETS TO GO tives, review the college's program, rinarians, but Dr Nielson remains confi- AROUND FOR YEARS recommend provincial quotas and main- dent that his students' job prospects are Reprinted from University Affairs tain the communication channels between good. (Volume 21, No. 6, June-July 1980) with the provinces and the college. "There are more than 200 diseases the permission ofChristine Tausig and the The cooperation between the four pro- transmissible from animals to man", he Association ofUniversities and Colleges of vinces is "the best model of its kind in the points out. "Even if80 per cent ofthe coun- Canada. country of a group of provinces sharing a try became vegetarians tomorrow and From almost any corner of their build- high cost program", Dr Nielsen states. hated dogs, somewhere in the world anim- ing the faculty and students at the Western als will continue to exist. There will always College of Veterinary Medicine (WCVM) Teaching, research and service be disease somewhere." can hear the pounding of workmen's The WCVM's four-year undergraduate Dr Nielsen maintains that the profession hammers. program stresses the basic sciences and a must find a balance between meeting the The WCVM - Canada's newest veteri- "standard laboratory type of medical style needs of the community and catering to nary college - is expanding to meet West- research", according to Dr Nielsen. The students who want to apply to veterinary ern Canada's need for more veterinarians. college combines the functions ofteaching, college. The expansion will double the college's research and community service. He adds that the market for veterinar- laboratory space and will ease crowded The main emphasis ofthe college is med- ians has not yet been fully explored. City conditions in classrooms, research and icine related to agriculture. Research and people are adopting more pets for compan- animal care facilities. It will also increase teaching centres around food-producing ionship while farmers are depending on undergraduate enrolment to 280 students animals such as cattle, sheep and pigs, veterinarians to help keep their costs from the approximately 250 now enrolled. explains J.G. Manns, head of the college's down. Governments, universities and Future plans call for an enrolment of veterinary physiological sciences depart- pharmaceutical companies could also use about 360 undergraduate students - a ment. There is less research money availa- more veterinarians. step up from the college's present status as ble to the college for "luxury animals" such "There will not be enough vets to go the third smallest of the 26 fully opera- as horses, dogs and cats. around for years and years", concludes Dr tional veterinary colleges in North Although there may be less research Nielsen. "Personally I think the (Pro- America. money available to study family pets, the posed) Maritime veterinary college should The college, located on the campus of college's animal hospital trains students in go ahead as planned (see separate story). the University ofSaskatchewan, opened its all areas of veterinary medicine. About We need a regional centre in the Maritimes doors in 1965 as a joint venture between 25,000 animals are referred to the hospital to foster the development of the livestock British Columbia, Alberta, Saskatchewan every year from all four Western provinces industry there and to work on fish diseases. and Manitoba. and they range from wildlife to cattle (from To have four veterinary colleges in Canada Students, who must have completed a the local farming community) to pet cats. is not unreasonable. minimum of two years of preveterinary Two-thirds of WCVM's graduates wind university studies, pay tuition fees of up in private practice in rural areas, points Canadian faculty hard to find $1,048 per year. out the dean. About 20 per cent work in Like the Ontario Veterinary College, Accepted under a quota system, the cities and less than 10 per cent go on to WCVM is finding it extremely difficult to 1980-81 class is made up of 70 students: 15 graduate work or develop a specialty. attract Canadian faculty. Only 40 per cent from British Columbia, 20 from Alberta, Adds Dr Manns: "Veterinary medicine of the 75 professors now at the college are 20 from Saskatchewan, 12 from Manitoba, is not nearly as specialized as human medi- Canadian. I from the Yukon and Northwest Territo- cine. Vets can't afford to be specialized ... "We must still recruit a significant ries and 2 chosen on the basis of merit or if you're out in a small town in Manitoba number of faculty offshore", says Dr from Third World countries without vete- or Saskatchewan you have to be prepared Nielsen. "It's understandable though. rinary colleges. to do virtually everything." Canada didn't have veterinary graduate The college does not normally take stu- programs until around 1956." dents from outside Western Canada. High demand for graduates The attractions of private practice for "Although one year we did take an anglo- Approximately four fully qualified stu- graduating students also keep the number phone student from Quebec", notes Ole dents apply every year for each student of graduate students low. This year about Nielsen, dean of WCVM. accepted at the college, an indication ofthe 20 students are enrolled at the college's The college's operating costs are shared high demand for veterinarians. PhD level. equally among the Western provinces on a "There are still more jobs out there than It is not only difficult to attract Cana- per student basis. An advisory council, there are graduates", states Dr Nielsen. dian faculty, adds Dr Nielsen. Sometimes made up of representatives of the universi- During the mid 1970s a drop in livestock it is hard to hire any professors at all. ties and governments in the Western pro- prices caused some anxiety within the pro- "There's a cutthroat competition for vinces and federal government representa- fession about the future demand for vete- faculty right now", he states. The college

v must compete for faculty with veterinary frozen and then transplanted into another NOUVELLES CONSTRUCTIONS AU schools in the rest of Canada, the United cow. CAMPUS VETERINAIRE DE States and the United Kingdom. In the "Instead of shipping a cow to New Zea- SAINT-HYACINTHE U.S. eight new veterinary schools have land we can send the frozen embryo for Le Ministere de l'Education du Quebec a opened, or are in the process of opening, transplant", Dr Nielsen explains. "It's accorde une subvention de $6 930 000 during the last 10 years, says Dr Nielsen, much cheaper that way." pour la derniere phase de l'agrandissement and at times the situation for WCVM is Caring for sick animals often forces de la Faculte de M6decine veterinaire de "absolutely desperate." WCVM researchers to find new treatment l'Universite de Montreal. Un bloc acad- "Sometimes we'll place an advertise- methods. "You can't prescribe bed rest for emique de 46 760 pieds carres nets et une ment saying we want an assistant professor a horse or dog", points out Dr Nielsen. grange-etable de 4 000 pieds carr's nets and we'll get literally no replies", he points "That forces us to innovate." seront construits selon le cheminement ci- out. One such innovation is the hydraulic lift dessous. La contribution du Gouverne- "It's getting tougher to compete finan- table used to perform operations on heavy ment f6deral a ce projet est etablie A cially and the drop in the Canadian dollar animals. The table is made of rubber and $1 455 000. has really hurt us." has an overhead device which reaches L'echeancier prepare par le Service de In response to the need for more faculty down to position and hold the animal. l'equipement de l'Universite de Montreal WCVM is beginning to emphasize the Built as a prototype model for the college, prevoit: opportunities available for PhD gradu- the table cost about $50,000 and is one of Re'vision de programme ates. "One of my top priorities is the two such tables in Canada, according to Dr 1 mois juin 1980 expansion of graduate training programs Nielsen. Esquisses not only for research but also to train spe- 3 mois juillet, aout, sept. 1980 cialists", Dr Nielsen says. "Right now the Vets important to academic community Approbation veterinary colleges just aren't meeting the Because veterinary medicine is con- 1 mois octobre 1980 demand for specialists and people with cerned with disease in all species, research Priliminaires advanced training." into animal diseases can often shed light on 4 mois novembre a fWvrier 1981 biology in general, says Dr Nielsen. Approbation Reproduction research "Animals are often good indicators of 2 mois mars, avril 1981 Another priority for the college is to what is going on in nature", he states, citing Plans et devis maintain its successful research program, the outbreak of a neurological disease in 7 mois mai a novembre 1981 adds Dr Nielsen. Minimata, Japan, where cats died of poi- Approbation Preventive medicine is the "top" son from eating the fish before people 2 mois decembre, janvier 1982 research priority for WCVM. A principal showed symptoms. Appels d'offres way to prevent disease is the development "Veterinary medicine tends to be viewed 1 mois fWvrier 1982 of animal management techniques such as as highly professional and applied, but I Approbation the use of computers to keep a record of think the study of disease is important to 2 mois mars, avril 1982 animal performance. the academic community", he says. Construction Researchers at the college are also look- "We have a lot to contribute. The poten- 18 mois mai 1982 a octobre 1983 ing for new compounds to fight viruses and tial of veterinary medicine is every bit as Demenagement vaccines to prevent diseases. One research much today as it was in the time of Louis 2 mois novembre, decembre 1983 team recently developed a drug to combat Pasteur." the herpes virus, which infects both anim- CATTLE WARBLE INFESTATION als and people. The effectiveness of the DROPS drug has already been proven in laboratory Results of a survey conducted by tests but further studies are being carried INTERDIT JETS, CONTRE LES Alberta Agriculture personnel earlier this out before using it on people. CISEAUX IMPORT:S DES year at 11 packing plants show that 12 A toxicology service laboratory, being ETATS-UNIS percent of the carcasses were infested with built as part of WCVM's expansion pro- Depuis minuit le 18 septembre, toute one or more warbles compared with 44 gram, will provide a focus for the college's importation de psittacides et d'oiseaux percent in 1968. study of chemical causes ofdisease. People chanteurs des ]tats-Unis est interdite. Dr Ali Khan, pest control specialist with will be able to bring sick or dead animals to Cette mesure a ete prise par Agriculture the department's beef cattle and sheep the laboratory for a diagnosis of the possi- Canada afin de proteger le secteur avicole branch, reports that this year's survey, bility of chemical poisoning. With the contre l'introduction eventuelle du virus which was coordinated with the Meat increase of environmental hazards such as velogene au pays. L'interdit s'applique aux Packers Council of Canada Survey for the pesticides, mercury and heavy metal poi- especes exotiques, c'est-a-dire perroquets, Western Provinces, was the first extensive soning, the college plans to increase its perruches, pinsons, canaris, cacat6os et la survey since 1968. emphasis on toxicology research. plupart des autres ciseaux de compagnie. He says this dramatic drop in the warble Other important research areas at the La volaille commerciale, les poussins d'un infestation level over the years can be college include respiratory disease, repro- jour et les oeufs d'incubation ne sont pas attributed to progressive farmers who have duction and the development of new touches par cette mesure. continually treated their cattle in the fall treatment methods. La forme v6logene de la maladie de with a systemic insecticide and to the per- One of the most "exciting" research Newcastle, qui est mortelle, a 6te diagnos- sistent efforts of agricultural fieldmen and developments recently has been in the field tiquee au d6but du mois chez un n6gociant regional and provincial enforcement per- of reproduction, states Dr Nielsen. en animaux de compagnie des Fitats-Unis. sonnel who have provided cattlemen with Researchers are finding ways to transplant Le virus responsable de la maladie se prop- up-to-date management technology. He frozen embryos in cows. They are given age par voie a6rienne et s'attaque aux believes that a further reduction in warbles hormones which cause them to produce systemes nerveux et respiratoire des can be achieved with the continued coop- about 15 eggs. These eggs are fertilized, oiseaux. eration of all sectors of the cattle industry. vi AGRICULTURE CANADA - PROFILES OF NEW SENIOR VETERINARY OFFICERS/ NOTES BIOGRAPHIQUES SUR LES NOUVEAUX AGENTS SUPI RIEURS VETERINAIRES Dr. J.B. Morrissey, Director General, Dr J.B. Morrissey, Directeur general, Food Inspection Directorate Direction de rinspection des aliments Dr. Morrissey, an Irish graduate (Dub- Le Dr Morrissey a requ son diplome en lin '65), worked in a dairy animal practice Irelande (Dublin 1965) et a travaille dans before coming to Canada, in 1968, to take une pratique d'animaux laitiers avant de a position in the Hamilton District Office. s'installer au Canada en 1968, ou il accepta He had two tours of duty in France and un poste au Bureau de district de Switzerland, testing and supervising cattle Hamilton. being imported into Canada. From 1972 to II a fait deux voyages d'affaire en France 1974 Brian was Officer-in-Charge at the et en Suisse afin de tester et surveiller les Toronto International Airport and then bovins importes au Canada. De 1972 a came to Ottawa to serve as Chief, Trans- 1974, Brian fut agent en chef a 1'Aeroport portation of Animals. In 1977 he was pro- international de Toronto et accepta un moted to the position now referred to as poste a Ottawa a titre de Chef, Transport Associate Director, Regulatory Programs des animaux. En 1977, il fut promu au and again earlier this year, while acting as poste de Directeur adjoint des pro- Director of Management Services of the grammes regulatoires, et plus t6t cette new Food Production and Inspection annee alors qu'il etait Directeur interi- Branch was promoted to Director of the maire des Services de gestion de la nouvelle Animal Health Division. Direction generale de la production et de l'inspection des aliments, il fut promu Directeur de la Division de la protection de la sante des animaux. Dr. I.R. Reid, Director, Animal Health Dr I.R. Reid, Directeur, Division de la Division protection de la sante des animaux Dr. Reid, born in Orangeville and Le Dr Reid, est ne a Orangeville, a etudie schooled in Cobourg, Ontario received his a Cobourg, en Ontario et a requ son DVM with first class honors from the Onta- diplome en medecine veterinaire avec rio Veterinary College in 1956. After two grande distinction en 1956. Apres avoir years ofprivate practice in Abbotsford, Brit- pratique pendant deux ans dans une cli- ish Columbia he launched into a series of nique veterinaire a Abbotsford, en positions and subsequent promotions with Colombie-Britannique, il a gravi divers the Health of Animals Branch. In 1958, he echelons et obtenu plusieurs promotions began as a veterinary inspector in Winnipeg au sein de la Direction generale de l'hy- and one year later took charge of the Dau- giene veterinaire. En 1958, il devint inspec- phin, Manitoba District Office. Ross moved teur veterinaire, a Winnipeg et un an plus to Calgary as a Regional Supervisor in 1967 tard devint responsable du Bureau de dis- and later that year was promoted to Alberta trict a Dauphin, au Manitoba. Ross a Regional Veterinarian. demenage a Calgary, a titre de Surveillant From 1972 to 1973 he assumed the duties regional en 1967 et plus tard cette annee-la, of Chief, Eradication Programs in Ottawa, fut promu Veterinaire regional (Division followed by his promotion to the position of de la protection de la sante des animaux). Executive Assistant to the Veterinary Direc- De 1972 a 1973, il a rempli les fonctions tor General. Since then Dr. Reid has served de Chef des Programmes d'radication a as the Special Assistant to the Assistant \D l Ottawa, Adjoint au Directeur general. Deputy Minister, Acting Director General DR. I.R. REID Depuis ce temps, il a ete nomme succes- of Animal Pathology and as Special Assist- sivement Adjoint particulier au Sous- ant to the Director General, Veterinary ministre adjoint, Directeur general interi- Inspection Operations. maire, Division de la pathologie veterinaire et Adjoint special au Directeur general des Operations, Inspection veterinaire.

ALBERTA AGRICULTURE biology from Simon Fraser University FLUORINE TOXICITY OF CATTLE APPOINTMENT before attending the Western College of Fluorine poisoning of cattle can be Dr H. Vance, director of Alberta Agri- Veterinary Medicine, Saskatoon. Follow- caused by forage or water contaminated by culture's animal health division, has ing his graduation with a DVM degree in industrial pollution. For lactating cows, announced the appointment of Dr P.N. 1974, he took postgraduate training in the upper tolerance level of soluble fluo- Nation as head of the regional veterinary diagnostic pathology, obtaining his ride is about 30 to 50 milligrams per kilo- diagnostic laboratory at Airdrie. M.V.Sc. degree in 1976. From 1976-1978 gram of dry matter intake. Symptoms of Dr. Nation was born in England and at he was employed at the regional veterinary fluorine poisoning include severe loss of an early age emigrated with his parents to laboratory, Fairview. In 1978 he was trans- appetite, stiffness in legs and enlarged Calgary. He obtained a B.Sc. degree in ferred to the Airdrie laboratory. bones.

vii Dr. William S. Bulmer, Associate Direc- Dr William S. Bulmer, Directeur associe, tor, Disease Control, Animal Health Controle des maladies, Division de la pro- Division tection de la sante des animaux Dr. Bulmer, a native Albertan who Le Dr Bulmer, natifd'Alberta, s'estjoint joined the Branch in 1978, was Chief of a la Direction generale en 1978, et devint Indigenous Diseases in the Animal Health Chef des maladies indigenes, a la Division Division in Ottawa. He graduated from the de la protection de la sante des animaux, a Ontario Veterinary College in 1961 and Ottawa. En 1961, il a requ son dipl6me de after seven years of mixed private practice l'Ontario Veterinary College et apres dix in Ponoka, Alberta joined the Manitoba ans de pratique a Ponoka en Alberta s'est Department of Agriculture. From 1970 to joint au Ministere de l'Agriculture du 1978 Bill worked as a Veterinary Patholo- Manitoba. De 1970 a 1978, Bill a travaille a gist in the Veterinary Services Branch of titre de veterinaire pathologiste a la Direc- the Ontario Ministry of Agriculture and tion generale des services veterinaires de Food. He earned his diploma from the l'Ontario Ministry of Agriculture and American College of Veterinary Patholo- Food. 11 a requ un dipl6me de l'American gists in 1973 and served as a member of its College of Veterinary Pathologists en 1973 examining board from 1977 to 1978. et a servi comme membre du bureau d'ex- h aminateur de 1977 a 1978.

DR. WILLIAM S. BULMER

Dr. H.T. Scott, Associate Director, Regu- Dr H.T. Scott, Directeur associe, Pro- latory Programs, Animal Health Division grammes regulatoires, Division de la pro- Dr. Scott was born and raised in Nor- tection de la sante des animaux wich, Ontario. He graduated from the Le Dr Scott est ne et a passe son enfance Ontario Veterinary College in 1968 and a Norwich, en Ontario. 11 a requ son after three years of private practice in the dipl6me de l'Ontario Veterinary College en Toronto area took a field position in the 1968, et apres avoir travaille pendant trois Woodstock District Office. In 1977 he ans dans une pratique privee dans la region enrolled in the departmental postgraduate de Toronto, accepta un poste au Bureau de program at Guelph and received his district de Woodstock. En 1977, il s'ins- diploma in Veterinary Preventive Medi- crivit au cours visant a l'obtention d'un cine shortly before becoming a Regional dipl6me en medecine preventive a Guelph, Veterinary Supervisor in the Ontario peu de temps avant d'acceder au post de Region in 1978. Surveillant veterinaire regional en Onta- rio, en 1978.

DR. H.T. SCOTT

NEW EFFORTS TO CONTROL time, the cattle will have developed a natu- controlling ticks. TICKS ral resistance and the number of hungry This year, two compounds - phosmet New chemicals for controlling ticks on ticks will have dropped. However, the use and chlorpyrifos - provided protection as cattle may soon be available as a result of of lindane on livestock is being restricted in good as or better than lindane for up to 20 research efforts by Agriculture Canada some countries, while in others the ticks days after treatment. In 1979, another scientists. have become resistant, making it harder compound, permethrin, gave comparable Each spring, cattle in the ranching coun- for ranchers to protect their cattle. protection. These findings may lead to new try of south-central British Columbia are In 1974, Agriculture Canada started registered alternatives to lindane. This exposed to the Rocky Mountain Wood looking at alternatives to lindane. Tests should benefit the cattle industry, particu- Tick. The ticks can cause paralysis in were conducted to narrow the choices to a larly in British Columbia where ticks are a livestock. few formulations. These were then tested serious problem. Ranchers now control these ticks with under actual field conditions, in coopera- the pesticide, lindane, applied to their tion with provincial scientists and a large IRON DEFICIENCY IN CATTLE cattle just before they enter the spring B.C. ranch. Cattle were placed on a half Cattle fed normal rations are seldom ranges. If applied correctly, lindane will section pasture which was tick infested. deficient in iron. Calf rations, however, deter female ticks from attaching them- During these trials, some of the com- should be supplemented with about 30 mil- selves to the cattle during the first three pounds were found to be inadequate. ligrams of iron per day because milk is a weeks on the spring ranges. After that However, several proved to be effective in poor source of iron. viii HEAT SYNCHRONIZATION programs which would complement con- CHINESE SCROLLS IN SHEEP trolled reproduction methods. A selection of Chinese scrolls, brush Heat synchronization techniques could A technical bulletin describing this paintings by Anthony Kingscote were on soon make Canadian sheep producers research program may be obtained on show in the McLaughlin Library at the more efficient. request from the Animal Research Insti- University of Guelph this fall. "By introducing a synchronized estrus tute, Ottawa, Ont., K1A 0C6. Dr Kingscote, a retired professor from cycle, it is possible to breed ewe lambs at OVC, studied in Manila, the Philippines, seven to eight months of age," explains at the Chinese Artists' Guild while working Louis Ainsworth, a research scientist at FISH PATHOLOGY LABORATORY for the United Nations from 1966 to 1969. Agriculture Canada's Animal Research WILL SERVE FARMERS AND He soon mastered the technique of brush Institute in Ottawa. AQUARISTS work and later his paintings were shown in "Lactating ewes and dry, mature ewes A new fish disease diagnostic service is international exhibitions under the Guild's can be bred on a year-round basis," Dr. now operating at the University of Guelph. sponsorship. Ainsworth says. "And you can increase Offered jointly by the Veterinary Services At the Guild, Dr. Kingscote learned the each ewe's lambing frequency. Controlled Branch ofthe Ontario Ministry ofAgricul- techniques and styles traditionally used by reproduction using heat synchronization ture and Food and the Ontario Veterinary the old masters, and initially recreated produces a compact lambing period. This College of the University of Guelph, the classical paintings. As he improved he allows for long-term planning, efficient service will meet the needs of fish farmers, composed his own subjects, culminating scheduling offeed and labor requirements, aquarium owners and veterinarians, with his work, "Hunting Lesson on a and uniformity in the lamb crop. However, according to Dr. Hugh Ferguson. Moonlit Night," a tour de force ofcomplex methods used to control the estrus cycle The Fish Pathology Laboratory will technique. must be simple to apply, inexpensive and accept either live or properly preserved When Dr Kingscote finished his studies, effective. Conception and birth rates specimens for diagnosis. Laboratory a Chinese friend had the paintings achieved must be at least as high as those scientist Rick Moccia says that they prefer mounted on the traditional, silk-covered possible using normal breeding methods." telephone enquiry and consultation prior scrolls as a special gift, and the teacher, as a Dr. Ainsworth and his colleagues at the to submission of a specimen. There will be sign ofapproval, wrote the artist's name in Animal Research Institute are testing a standard charge for the service. Chinese characters. Since this method of methods ofcontrolling reproduction deve- Live or freshly dead specimens may be signing and mounting was used by the old loped in other countries, and adapting brought to the Laboratory in Room 275, masters, it was a marvellous compliment them to Canadian conditions. Pathology building, Ontario Veterinary and signified the end of Dr Kingscote's The standard method for control of the College between 9:00 a.m. and noon and training. estrus cycle in sheep involves the insertion 1:30 p.m. and 4:00 p.m. daily from Anthony Kingscote now lives in Van- ofa hormone-treated polyurethane sponge Monday to Friday. Specimens fixed in 10 couver and continues to paint and instruct into the vagina for 12 to 14 days. At the end percent buffered formalin may be for- students in the traditional Chinese brush of this period, the sponge is removed and warded by mail to the Veterinary Services techniques. the ewe is injected with PMSG (pregnant Laboratory, P.O. Box 3612, Guelph, mare serum gonadotrophin). Ontario NIH 6R8. Field trials to evaluate the potential use- In addition to disease diagnosis, the Fish fulness of this hormone-sponge-PMSG Pathology Laboratory offers contract treatment under commercial flock condi- research in such related areas as disease tions were begun in Newfoundland in 1978 diagnosis, fish health management, histo- and in Ontario in 1979. pathology and electron microscopy, says In trials using adult ewes and natural Dr. Ted Valli, chairman ofthe Department mating, 85 to 90% of the hormone-treated of Pathology. Those needing further ewes bred during the August to November information may call (519) 824-4120, period lambed. extension 2681. Lambing was divided into two distinct periods of four to five days each, depend- ing on whether the ewes conceived during DR ROWSELL HONORED the synchronized or the next estrus. On October 25, 1980 the University of "Although ewes do come into estrus Saskatchewan conferred an honorary doc- shortly after the sponge treatment without tor of laws degree on Dr H.C. Rowsell of the use of PMSG, a low dose (500 IU) Ottawa who is internationally known as a results in a more predictable and precise comparative medical scientist and has con- synchronization. And it induces a mild tributed in a major way to the development super-ovulatory effect which slightly of high standards of animal care in increases the likelihood of twins and tri- research. plets," Dr. Ainsworth says. Dr Rowsell is executive director of the Dr A.A. Kingscote viewing his Chinese "To get acceptable lambing results, the Canadian Council on Animal Care and brush paintings which hang in the Dean's use of PMSG is essential after sponge professor of pathology and chairman of office at OVC. treatment of ewe lambs, and for ewes the Animal Care Committee at the Univer- treated at times when they would not nor- sity of Ottawa. He was the first head ofthe NEW TURKEY VACCINE mally cycle - for instance while they are Department of Veterinary Pathology in The University of Saskatchewan's Vete- milking or outside the natural breeding the Western College of Veterinary Medi- rinary Infectious Disease Organization season," he says. cine, from 1965 to 1968. Before that, he (VIDO) is developing a vaccine against an Animal Research Institute scientists are spent 12 years in different posts at the Uni- economically important disease of turkeys also developing management and feeding versity of Guelph. called hemorrhagic enteritis.

xiii VIDO is the developer of Vicogen, on southern Prairie grassland before they en une zone unique designee, comme le which has proven effective in controlling are weaned, even though deaths from this Quebec et l'Ontario, region a faible the most common bacterial form of calf condition usually occur after weaning. incidence. scours and is being marketed around the However, deaths do sometimes occur On a par ailleurs mis sur pied un nou- world by Connaught Laboratories of before weaning. veau systeme de permis pour l'expedition Toronto. Dr C.H. Bigland, director of Dr. Bailey says range-type calculi, com- de bovins entre les differentes regions. Un VIDO, says he hopes to achieve the same posed of silica, are produced when the sil- permis est necessaire pour tout echange, success with a vaccine against hemorrhagic ica content ofthe urine is high, and that the sauf dans les cas suivants: enteritis, which causes losses to the Cana- condition occurs in cattle on native grass - 1'expedition de bovins des regions dian turkey industry ranging from $3 mil- whose water intake is less than 3.5 kg for exemptes de brucellose vers les regions lion to $9 million annually. each kg of grass (dry weight) consumed. voisines a faible frequence. Cette The Canadian Turkey Marketing A calf's intake of grass and water mesure s'applique aux transferts de Agency has provided $200,000 to support increases steadily after its first month of bovins entre la Colombie-Britannique the work, the largest donation VIDO has life. At four months ofage, its water intake et les provinces des Prairies, ainsi so far received from a livestock or poultry is about 5 kg per kg ofgrass and dry matter qu'entre les provinces maritimes et le industry source. The donation, derived consumed, but by about four and a half Quebec. through a check-off system from turkey months of age, or by about the beginning - 1'envoi de bovins de boucherie ou d'en- producers across the country, is eligible for of September, its water intake drops to less graissement d'une region a faible inci- a 50 percent matching grant from the Dev- than 3.5 kg per kg ofdry grass. At this stage dence vers le Quebec ou l'Ontario; onian Group of Charitable Foundations, silica conditions in the urine are similar to - le transport de bovins entre l'Ontario et one of the major supporters of VIDO. those that could form calculi in older le Quebec. To promote an exchange of ideas and calves. "We do not know," says Dr. Bailey, On peut se procurer les permis en s'ad- obtain guidance on future research paths, "whether all calculi that cause an obstruc- ressant aux bureaux regionaux de l'hy- VIDO recently held an international sym- tion of the urinary tract begin to form giene veterinaire d'Agriculture Canada. posium on hemorrhagic enteritis in tur- before calves are weaned. Although the Les exigences relatives aux epreuves de keys, which was attended by leading North rapid growth of calculi is more likely to depistage de la brucellose demeurent American authorities on the disease. occur in weaned calves during the very cold essentiellement les memes. Bien que les Dr Bigland said the disease, which also weather, when water consumption is lower boivins des troupeaux declares exemptes affects chickens and pheasants, is caused then than it is in the warm weather, cases of n'aient toujours pas a subir d'analyses san- by a virus. Deaths can vary from a few obstruction that appear soon after wean- guines, les eleveurs doivent respecter les birds to 15 or 20 percent of an infected ing are thought to be due to calculi that normes relatives aux permis de transport. flock. Economic losses result mainly from began to form before weaning." De meme, il ne faut pas d'analyses pour a decrease in the amount of weight gained l'expedition de bovins entre de brucellose per pound of feed, delays in marketing and et une region a faible incidence. increased feed consumption, and poor HOG OUTLOOK Dernierement, les Ltats-Unis ont grades. This occurs because the disease Agriculture Canada economists forecast reconnu a la Colombie-Britannique et aux damages the intestine of infected birds and that hog prices should continue to rise into quatre provinces de l'Atlantique, le statut reduces the amount of food that can be 1981 as hog marketings across North de regions exemptes de brucellose. L'ex- absorbed. America drop. portation de bovins en provenance de ces Dr Bigland said vaccines have been pro- In Canada, fourth-quarter hog market- regions vers les ttats-Unis ne necessite duced using spleens from artificially ings are expected to average slightly above donc qu'un test negatif pour la brucellose, infected turkeys. However, they carry the this time last year, but are likely to drop in effectu6 dans les trente jours precedant le risk of transmitting other infections. the first half of 1981 to an average five to passage de la frontiere americaine. VIDO's aim will be to produce an effective eight per cent below the same period in Cependant, les bovins doivent venir d'un vaccine against hemorrhagic enteritis that 1980. troupeau garde dans une region exempte eliminates the dangers that arise when If the United States hog output is as low de brucellose et etre envoyes directement tissues from infected birds are used. as predicted, Canadian hog prices could de la ferme au point d'entree, sans traverser average more than $75 per hundredweight de frontieres regionales auquel cas le in the first half of 1981. vehicule de transport doit porter le sceau PREVENTING URINARY CALCULI du gouvernement du Canada. IN RANGE CALVES Ces nouveaux reglements ne concernent A scientist at the federal research station LE POINT SUR LA BRUCELLOSE pas les bovins exportes aux ttats-Unis in Lethbridge recommends giving a creep Le 1 erjuillet 1980, 167 troupeaux de bov- pour abattage immediat. feed that contains a high level of salt to ins canadiens etaient en quarantaine pour calves in herds where significant losses la brucellose. Il s'agit d'une diminution commonly occur from urinary calculi two considerable comparativement a 269 trou- BEEF OUTLOOK to three months after weaning. Dr. C.B. peaux l'ete dernier. Slaughter cattle prices are expected to Bailey, animal physiologist at the research C'est pour cette raison que la Direction remain strong in North America during the station, says a creep feed which contains 15 g6nerale de la production et de l'inspection next year according to Agriculture Canada to 20 percent salt will prevent calculi from des aliments a modifie dans le cadre de son economists. forming because the salt induces the con- programme d'eradication de la brucellose, A steady improvement in beef demand sumption of extra water. For this reason it certains reglements severes concernant les should largely offset an anticipated is most important that calves that are given expeditions de bovins au Canada. increase in beef supplies through 1981 a high-salt creep feed have an abundant La Colombie-Britannique et les quatre keeping slaughter prices up. supply of good water. provinces de rAtlantique ont Wte designees If grain prices remain strong, as is fore- Studies carried out at Lethbridge show regions exemptes de brucellose. Les trois cast by the economists, feeder cattle prices that calculi begin to form in calves grazing provinces des Prairies ont ete regroupees could weaken further this fall and winter. xiv ONTARIO VSB APPOINTMENTS Dr Hoover received his early education Dr J.N.R. Henry has been appointed in Beamsville, Ontario and in 1975 Laboratory Head, Veterinary Services obtained his DVM degree from the Onta- Laboratory at Guelph, Ontario. He has rio Veterinary College, University of been Acting Head since the retirement of Guelph. As an undergraduate he worked in Dr F.C. Nelson. a veterinary practice in Forest, Ontario and at the Animal Pathology Laboratory in Sackville, N.B. After graduation, Dr Hoover was in general practice at Forest and in Sarnia. In September 1976, he enrolled in a PhD pro- gram in veterinary pathology at Purdue University, West Lafayette, Indiana. While attending Purdue University, Dr Hoover was involved extensively in diag- nostic pathology and he has special inter- ests in toxicology and electron microscopy.

DR. J.R. PETTIT lege. In March 1976, Dr Pettit joined the Animal Diseases Research Institute, Agri- culture Canada, in Ottawa, where he was involved in research and poultry diagnos- tics. Dr Pettit, during his years in Ottawa, DR. J.N.R. HENRY contributed significantly to the Salmonella Dr Henry graduated from the Ontario eradication program and returns to the Veterinary College in 1955. Following VSB with considerable knowledge in this graduation, he was in large animal practice area with particular interest in the broad in Cobden, Ontario until 1965. In 1965, Dr area of poultry diagnostics. Dr Pettit will Henry joined the staff of the Kemptville also be supervisor ofthe Ontario Hatchery Veterinary Services Laboratory as assist- Supply Flock Policy and will be responsi- ant Laboratory Head. In 1968 he moved to ble for the fur-bearing diagnostic labora- Guelph in the same capacity. Dr Henry, tory. Dr Bruce Hunter will be assisting Dr while at the Guelph Laboratory, pro- Pettit in these programs. ceeded with postgraduate training and obtained a Master of Science degree in 1971. In 1972, Dr Henry was on leave of J.JLETTE absence on a project in Barbados and on DR. J. JOLETTE returning to the Guelph Laboratory in Dr J. Jolette has been appointed Head 1973, resumed responsibilities as a veteri- of the Veterinary Services Laboratory in nary pathologist and assistant Laboratory New Liskeard, Ontario. Head. Dr Jolette graduated from the Univer- Dr Henry has had broad experience in sity of Montreal Faculty of Veterinary administration, diagnostic pathology, and Medicine, St. Hyacinthe, Quebec in 1978. has contributed significantly to veterinary He obtained his secondary school edu- diagnostic medicine in the province. cation at Ville-Marie, Quebec. For four Dr J.R. Pettit has been appointed Vete- months after graduation, he practised rinary Pathologist in Poultry and Fur- veterinary medicine with Dr. Come Mar- bearing animals at the Guelph, Ontario chand at Guigues, Temiscaminque, Veterinary Services Laboratory. Quebec. Dr Pettit obtained his early education in Dr. Jolette then enrolled in the post- the Toronto area and obtained his DVM graduate course at University of Montreal degree from the Ontario Veterinary Col- in veterinary pathology and will complete lege in 1966. From May 1966 to December the Masters program this summer. During 1969, he practised veterinary medicine in the postgraduate program, much time was Exeter, Ontario. In January 1970, Dr spent in diagnostic laboratory work. Pettit joined the Veterinary Services Because of his training, experience and Branch in the diagnostic laboratory at ability to speak fluently both English and Guelph as pathologist in the poultry and French, Dr Jolette comes well suited to fur-bearing areas. While in this position, Dr D. Hoover has been appointed Vete- handle the laboratory responsibilities at he obtained his diploma in veterinary rinary Pathologist at the Veterinary Servi- New Liskeard. He assumed his duties in pathology at the Ontario Veterinary Col- ces Laboratory in Guelph. July 1980.

xv HOG FUEL SASKATCHEWAN VMA ral fibers like wool may cause changes in Sometimes considered a nuisance, the The Council ofthe Saskatchewan Veter- the sheep industry. Demand for wool in manure pile could become a farm energy inary Medical Association for 1980-81 is as brown and charcoal colors may produce a source. Studies carried out under contract follows: President - Dr B. M. Wurtz, Mel- market for sheep breeds different than to Agriculture Canada found that about fort, vice-president - Dr K.R. Armstrong, those commonly raised in Canada today. 3,000 cubic feet of methane gas could be Saskatoon, past-president - Dr L.K. produced each day from manure on a hog Anderson, Regina, councillors - Dr A.W. IN MEMORIAM farm. Waste products from the gas- Deyo, Moose Jaw, Dr D.A. Pratt, Nipa- Dr J.N. Stratas (ONT '42) died in producing process could be used as wan, Dr O.G. Dowdeswell, Regina and Dr Toronto, Ontario on October 14, 1980. fertilizer. P.D. Rempel, Unity. Dr J.G. Tardif(MON'51) a dcede le 13 However, the agriculture department juillet 1980 a Trois-Rivieres, Quebec. says more research will have to be done Dr. H. H. Kelly (ONT '52) ofCharlotte- before the technology to produce the gas A SHEEP OF A DIFFERENT COLOR town, Prince Edward Island died on can be widely recommended and applied. Growing consumer preference for natu- November 18, 1980.

COMING EVENTS

JANUARY 1981 Annual Congress. April 3-5. Cunard Interna- B. Herrera-Aldana, Apartado 76.929, Caracas tional Hotel, London. Further information 107, Venezuela. Seventh Annual Meeting of the International from BSAVA, 5 St. George's Terrace, Chelten- Embryo Transfer Society, January 18-20, ham, Glos., England GL50 3PT. AUGUST 1981 Regency Inn, Denver, Colorado. For further information contact Dr. D.C. Kraemer, American Animal Hospital Association World Association of Veterinary Food Department of Veterinary Physiology and Annual Meeting. Atlanta, Georgia. April 4-10. Hygienists 8th International Symposium. Pharmacology, College of Veterinary Medicine, Contact Executive Director, P.O. Box 6429, August 30-September 4. Dublin, Ireland. For Texas A&M University, College Station, Texas South Bend, Indiana 46660. details contact The Secretariat, 8th WAVFH 77843. Symposium, 44 Northumberland Road, Balls- bridge, Dublin 4, Republic of Ireland. FEBRUARY 1981 JULY 1981 SEPTEMBER 1981 New Zealand Veterinary Association Annual American Veterinary Medical Association Conference. February 10-15. Queenstown, New Annual Meeting. July 20-23. St. Louis, Mis- First European Congress for Medicine and Zealand. Contact R.H. Montgomery, P.O. Box souri. Contact Mr. R.G. Rongren, 930 North Equestrian Sports. September 18-20. Nantes, 71, Mosgiel, New Zealand. Meacham Road, Schaumburg, Illinois 60196. France. Topics will interest physicians, veteri- narians and equestrian specialists. For further APRIL 1981 9th Panamerican Congress of Veterinary information contact Dr. B. Auvinet, Service de Medicine and Zootechnics. July 26-31. Caracas, Medecine generale, Centre hospitalier, 53024 British Small Animal Veterinary Association Venezuela. For further information contact Dr. Laval Cedex, France.

EVENEMENTS PROCHAINS

FEVRIER 1981 I I avril a Atlanta, Georgia. Pour plus de details AOOT 1981 s'adresser a AAHA, P.O. Box 6429, South L'Association veterinaire de la Nouvelle- Bend, Indiana 46660. L'Association mondiale des v6t6rinaires hygi- Zelande tiendra son congres annuel du 10 au 15 enistes tiendra son 8e symposium international fevrier a Queenstown, Nouvelle-Zelande. Pour du 30 aout au 4 septembre a Dublin, Irelande. plus de details s'adresser a M. R.H. Montgo- Pour plus de details s'adresser au Secretariat, mery, P.O. Box 71, Mosgiel, New Zealand. 8th WAVFH Symposium, 44 Northumberland JUILLET 1981 Road, Ballsbridge, Dublin 4, Republic of Ireland. AVRIL 1981 L'Association veterinaire americaine tiendra son congres annuel du 20 au 23 juillet A St. SEPTEMBRE 1981 L'Association britannique des praticiens en Louis, Missouri. Pour plus de details s'adresser petits animaux tiendra son congres annuel a a M. R.G. Rongren, 930 North Meacham Road, Le premier congres europeen "Medecine et l'hotel Cunard International, Londres du 3 au 5 Schaumburg, Illinois 60196. Sports Equestres" se tiendra a Nantes, France avril. Pour plus de details s'adresser au BSAVA, du 18 au 20 septembre. Les communications 5 St. George's Terrace, Cheltenham, Glos., Eng- Le 9e congres panamericain de medecine interesseront les medecins, les vet6rinaires et les land GL50 3PT. veterinaire et de zootechnie se tiendra du 26 au techniciens de rlquitation. Pour plus de details, 31 juillet a Caracas, Venezuela. Pour plus de s'adresser au Dr B. Auvinet, Secretariat general, L'Association americaine des hopitaux details, s'adresser au Dr B. Herrera-Aldana, Service de M6decine generale, Centre hospita- veterinaires tiendra son congres annuel du 4 au Apartado 76.929, Caracas 107, Venezuela. lier, 53024 Laval Cedex, France. xvi THE CANADIAN VETERINARY JOURNAL VOLUME XXI JANUARY TO DECEMBER, 1980 AUTHOR INDEX

ACRES, S.D., 243 GUAY, P., 18 PARADIS, MANON, 63 AL-DAHASH, S., 165 GUDMUNDSON, J., 349 PENNOCK, P.W., 293 ALEXANDER, D.C., 353 PHANEUF, L.P., ALLEN, D.G., 195 HABIB, 1., 165 PHILLIPS, G.D., 12 ARCHIMBAULT, P., 323 HAMILTON, G.F., 32, 262 PHYSICK-SHEARD, P.W., 53 ARMSTRONG, P.J., 189 HARE, W.C.D., 106 PIGEON, C., 226 HATLER, D.F., 47 PINEAU, S., 82 BARBER, S.M., 234 HAYES, M.A., 63 POLLEY, L.R., 307 BARTH, A.D., 234 HAZLETT, D.T.G., 162 PORTER, J., 34 BASRUR, P.K., 317 HEUSER, W., 314 POTWOROWSKI, E., 21 BATES, F.Y., 210 HIDIROGLOU, M., 328 POVEY, R.C., 231 BEHRENS, J.C., 210 HIGGINS, R., 63, 100, 278 PRESCOTT, J.F., 198 BELBECK, L.W., 82 HODSON, K.A., 47 PRICE, D.A., 33 BERNARD, M.A., 49 HOLDFELD, N.W., 103 BOHAC, J.G., 310 HOPKINS, J.B., 53 QUINE, J.P., 320 BOSU, W.T.K., 198 HUDSON, M., 47 BOULAY, G., 21 HUTCHISON, J.A., 242 RADOSTITS, O.M., 155, 227, 243 BOUTIER, C., 323 RAMOS, JR., A.S., 258 BOYCOTT, B.R., 103 JANZEN, E.D., 24, 119, 219 REHMTULLA, A.J., 267 BRADLEY, J.A., 297 JERICHO, K.W.F., 268 RENE-ROBERGE, ELAINE, 278 BROCKMAN, R.P., 349 JETTE, J.P., 300 RIDDELL, C., 287 BUNDZA, A., 280 JOLETTE, J., 100 ROBINSON, Y., 65 ROBISON, T.S., 210 CALDWELL, D.S., 152 KENNEDY, G.A., 258 ROWAN-LEGG, P.K., 179, 201, 225,347 CAMPBELL, L.D., 12 KING, A.B., 317 ROY, R.S., 171, 336 CARLSON, H.C., 239 KINGSCOTE, B., 266 RUET, J.L., 91 CARTER, J.G., 158, 193 KIRBY, K., 293 CHALMERS, G.A., 63, 352 KURTZ, H.J., 210 SAUNDERS, J.R., 119, 219 CHANDER, S., 280 SAUVAGEAU, R., 66 CHANG, M.H., 335 LAMOTHE, P., 18, 336 SCHIEFER, B., 103 CHEW, K., 321 LANG, G.H., 206 SEARCY, G.P., 155 CHILD, K.N., 47 LANGFORD, E.V., 265 SECORD, D.C., 297 CHURCH, T.L., 214 LEE, ENG-HONG, 239 SHETTIGARA, P.T., 287 CLARK, L.J., 74 LESTER, S.J., 124, 284 SHEWEN, PATRICIA, E., 2,231 COTE, J.F., 340 LITTLE, P.B., 152, 186 SILIM, A., 336 CROPPER, NEIL, 192 LOEW, F.M., 213 SINGH, ELIZABETH L., 106 CROWE, S.P., 195 LONG, J.R., 91 SLOCOMBE, J.O.D., 159 CYMBALUK, N., 349 LONGAIR, J.A., 286 SLOCOMBE, R.F., 130 LUMSDEN, J.H., 186 SMART, J.N., 24 DEA, S., 171 LYNCH, J.A., 28 SMART, M.E., 349 DEROTH, L., 271 SMITH, G.G., 46, 242 DESCOTEAUX, J.-P., 21 MAJAK, W., 74 STARK, D.R., 95 DESILETS, A., 278 MARSOLAIS, G., 100 STEVENSON, R.G., 267 DEWITT, W.F., 91 MARTIN, S.W., 293 STIRTZINGER, TATIANA, 186 DIES, K., 38 MCDONALD, G.K., 250 STOCKDALE, P.H.G., 227 DIFRANCO, E., 100 MCKENZIE, N.T., 234 STURM, R.T., 206 DOIGE, C., 349 MCLEAN, A., 74 SURGEONER, G.A., 50 DOWDESWELL, O.G., 224 MCMILLAN, 1., 159 SWANSON, S.P., 210 DOWNEY, B.R., 301 MCSHERRY, B.J., 252 DOWNEY, R.S., 195 MEADOWS, D.H., 61 THIESSEN, W.A., 119 DUKES,T.W.,280 MESFIN, G.M., 284 THOMPSON, E. JOANNE, 186 DWYER, P., 252 MILLER, A.E., 197 THOMPSON,S.C., 113 J. H.L., 124 EAGLESOME, M.D., 106 MILLS, THOMSON, G.W., 158 EATON, R.D., 297 MIROCHA, C.J., 210 THOMSON, R.G., 181, 267 155 EL-SHAFEY, SAMIR, 165 MITCHALL, K.G., TONKEN, M., 138 MITCHELL, D., 297 ELZAHARY, M.A.S.Y., 171, 336 TULLENERS, E.P., 32, 262 MITCHELL, MARDI, 95 TURGEON, D., 65, 100 FATHALLA, M., 165 MITCHELL, W.R., 206 TURNBULL, J.E., 85 FELLOUS, R., 323 MOOLENBEEK, W.J., 50 FINELL,G.R., 63 MOORE, S., 82 UDENBERG, T., 74 FORSBERG, C.M., 252 MORIN, M., 65, 100 UNDERDAHL, N.R., 258 FOUNTAIN, G.E., 252 MORRISON, R.R., 290 FRECHETTE, J.-L., 66 MOSTERT, P.E., 307 VALLI, V.E., 252 FREDEEN, H., 39 MURCH, K.M., 69 VANDER ENDE, C.W., 60 FRIESEN, L., 252 FUJINO, K.K., 47 NAYAR, G.P.S., 139 WALTNER-TOEWS, D., 61 NICHOLSON, H.H., 24 WATSON, A.D.J., 321 GAGNON, A., 158, 195 NIILO, L., 141, 240 WEAVER, G.A., 210 GAMMIE, J., 64 WEBSTER, F.L., 101 GAREAU, L., 77 O'CONNOR, R.D., 53 WILKIE, I.W., 203 GOPLEN, B.P., 149 ONDERKA, D.K., 239 WILSON, J.S., 30 GREEN, P.D., 343 WU, S.F., 335 GREIG, A.S., 280 PALMER, N.C., 317 GRENN, H.H., 266 PANG, C.Y., 12 YATES, W.D.G., 63, 124, 310

354 THE CANADIAN VETERINARY JOURNAL VOLUME XXI JANUARY TO DECEMBER, 1980 SUBJECT INDEX

ACV, voyez CVMA Proceedings Second International Sympo- Pansteatitis in cats fed fish-based commercial sium on Neonatal Diarrhea. Edited by S.D. foods. Cropper, Neil, 192 Animal Behavior Acres, 283 Pet foods in Canada. Loew, F.M., 213 Aggression in dogs and associated neuropa- Prostate Gland and Seminal Vesicles. Sodium fluoroacetate poisoning in a cat. thology. Caldwell, D.S. and Little, P.B., Gerhard Aummuller, 296 Gammie, J., 64 152 Reproductive Biology of the Mare. Basic and Survey of the conjunctival flora of clinically Applied Aspects. O.J. Ginther, 289 normal cats and cats with conjunctivitis. Avian Species Respiratory Diseases in Cattle. Edited by Shewen, P.E., Povey, R.C. and Wilson, Chick edema disease syndrome in young tur- W.B. Martin, 283 M.R., 231 key poults. Pang, C.Y., Phillips, G.D. and Small Animal Surgery. An Atlas ofOperative Cattle Campbell, L.D., 12 Techniques. Wayne E. Wingfield and Clar- Anticoagulant for transport of bovine blood. Chlamydial infection in animals: a review. ence A. Rawlings, 197 Valli, V.E., McSherry, B.J., Fountain, Shewen, Patricia E., 2 Toxigenic Fusaria, their Distribution and G.E., Friesen, L., Dwyer, P. and Forsberg, Clostridium perfringens in animal disease: a Significance as Causes of Disease in C.M., 252 review of current knowledge. Niilo, L., 141 Animal and Man. Josef Palti, 132 Bovine herpesvirus type 1 in the sperm of a Coccidiosis in chickens recorded in Alberta Veterinary Annual, Eighteenth Issue. Edited bull from a herd with fertility problems. between 1973 and 1977. Eng-Hong Lee, by C.S. Grunsell and F.W.F. Hills, 129 Elazhary, M.A.S.Y., Lamothe, P., Silim, Onderka, D.K. and Carlson, H.C., 239 Veterinary Clinical Diagnosis, 2nd Edition. A, and Roy, R.S., 336 Dermal squamous cell carcinoma in broiler W.R. Kelly, 151 Brief review of bovine coccidiosis in western chickens in Saskatchewan. Riddell, C. and Veterinary Clinical Pathology, E.H. Coles, Canada. Radostits, O.M: and Stockdale, Shettigara, P.T., 287 279 P.H.G., 227 Fertilizer poisoning - is it a problem? Miller, Veterinary Medicine 5th Edition. D.C. Blood, Brucellosis in moose (AIces alces). A serologi- A.E., 197 J.A. Henderson and O.M. Radostits, 268 cal survey in an open range cattle area of Les virus influenza chez l'homme et les ani- Veterinary Practice Management. Edited by north central British Columbia recently maux. Une revue de la litterature. Dea, S., P.W. Pratt, 27 infected with bovine brucellosis. Hudson, Elazhary, M.A.S.Y. et Roy, R.S., 171 Viruses of Vertebrates. Fourth Edition, C.H. M., Child, K.N., Hatler, D.F., Fujino, K.K. Studies on Salmonella from floor litter of 60 Andrews, H.G. Pereira and P. Wildy, 319 and Hodson, K.A., 47 broiler chicken houses in Nova Scotia. Canadian beef industry. Fredeen, H., 39 Long, J.R., DeWitt, W.F. and Ruet, J.L., Bovine, see Cattle Chlamydial infection in animals: a review. 91 Shewen, Patricia E., 2 Canadian Veterinary Medical Association Clostridium perfringens in animal disease: a Book Reviews La medecine veterinaire, l'ACV et vous. review of current knowledge. Niilo, L., 141 Active Years for Your Aging Dog. Bernard S. Webster, F.L., 102 Comments on "update on pasteurellosis in Hershhorn, 209 Veterinary Medicine, the CVMA and you. young cattle". Langford, E.V., 265 Artificial Breeding ofNon-domestic Animals. Webster, F.L., 101 Compendium of animal rabies vaccine mar- Edited by P.F. Watson, 66 keted in Canada/Repertorie des vaccins Atlas of Surgical Approaches to the Bone of Cats antirabiques pour animaux, vendus au the Horse. D.W. Milne and A.S. Turner, Abscess caused by Corynebacterium equi in a Canada. 230, 241 269 cat. Higgins, R. and Paradis, Manon, 63 Concentrations seriques et biodisponibilite Bacterial Infection and Immunity in Domes- Campylobacter enteritis in dogs and cats. sanguine du chloramphenicol chez les bov- tic Animals. J.B. Woolcock, 118 Nayar, G.P.S., 139 ins. Archimbault, P., Boutier, C. et Fellous, Calving Problems and Early Viability of the Chemoreceptor tumors diagnosed at the R., 323 Calf. B. Hoffman, I.L. Mason and J. Western College of Veterinary Medicine Concurrent bovine virus diarrhea and bovine Schmidt, 319 1967-1979. Yates, W.D.G., Lester, S.J. and papular stomatitis infection in a calf. Control of Reproduction in the Cow. Edited Mills, J.H.L., 124 Bohac, J.G. and Yates, W.D.G., 310 by J.M. Sreenan, 67 Chlamydial infection in animals: a review. Copper deficiency in calves in northcentral Diagnostic Procedures in Veterinary Bacteri- Shewen, Patricia E., 2 Manitoba. Smart, M.E., Gudmundson, J., ology and Mycology. Third Edition. G.R. Compendium of animal rabies vaccine mar- Brockman, R.P., Cymbaluk, N. and Doig, Carter, 242 keted in Canada/ Repertoire des vaccins C., 349 Diseases of Feedlot Cattle Third Edition. Rue antirabiques pour animaux, vendus au Economics of dairy farming in Canada. Jensen and Donald R. MacKey, 321 Canada. 230, 241 Thompson, S.C., 113 Future of Beef Production in the European Embryo transfer: a discussion on its potential Electrocardiographic parameters in the nor- Community. Edited by J.C. Bowman and for infectious disease control based on a mal lactating Holstein cow. DeRoth, L., P. Susmel, 309 review of studies on infection of gametes 271 Immunology and I mmunopathology of and early embryos by various agents. Embryo transfer: a discussion on its potential Domestic Animals. R.G. Olsen and S. Eaglesome, M.D., Hare, W.C.D. and for infectious disease control based on a Krakowka, 29 Singh, Elizabeth, L., 106 review of studies on infection of gametes Miller's Anatomy of the Dog. Second Edi- Granulomatous dermatitis in carnivores and early embryos by various agents. tion. Edited by H.E. Evansand G.C. Chris- associated with dermatophyte infection. Eaglesome, M.D., Hare, W.C.D. and tensen, 118 Holdfeld, N.W., Schiefer, B. and Boycott, Singh, Elizabeth, L., 106 Parasitology for Veterinarians. Jay R. B.R., 103 Failure of purified T-2 mycotoxin to produce Georgi, 268 More on feline pansteatitis. Watson, A.D.J., hemorrhaging in dairy cattle. Weaver, Proceedings of the Twenty-second Annual 321 G.A., Kurtz, H.J., Mirocha, C.J., Bates, Meeting of the American Association of Nocardial pleuritis in a cat. Armstrong, P.J., F.Y., Behrens, J.C., Robison, T.S. and Veterinary Laboratory Diagnosticians. 309 189 Swanson, S.P., 210

355 Fertilizer poisoning - is it a problem? Miller, Diseases station, outbreak of. Janzen, E.D., Smart, A.E., 197 Abomasal ulcers in calves, surgical resection J.N. and Nicholson, H.H., 24 Haemophilus somnus infection I. A ten year of perforated. Tulleners, E.P. and Hamil- Intussusception involving the spiral colon in a ( 1969-1978) retrospective study of losses in ton, G.F., 262 calf. Hamilton, G.F. and Tulleners, E.P., cattle herds in western Canada. Saunders, Abscess caused by Corynebacterium equi in a 32 J.R., Thiessen, W.A. and Janzen, E.D., 119 cat. Higgins, R. and Paradis, Manon, 63 Leukomyelitis in the goat. Wilkie, I.W., 203 Haemophilus somnus infection II. A Cana- Arthritis, canine rheumatoid. Heuser, W., 314 Leukosis, sporadic bovine. Bundza, A., dian field trial of a commerciai bacterin: Border disease-like syndrome in a southern Greig, A.S., Chander, S. and Dukes, T.W., clinical and serological results. Saunders, Ontario sheep flock. Physick-Sheard, 280 J.R. and Janzen, E.D., 219 P.W., Hopkins, J.B. and O'Connor, R.D., Malignant catarrhal fever virus and virus neu- Housing and environment for dairy calves. 53 tralizing activity, plaque assay for. Hazlett, Turnbull, J.E., 85 Bovine virus diarrhea and bovine papular D.T.G., 162 Intussusception involving the spiral colon in a stomatitis infection in a calf, concurrent. Metritis following parturition: serum proges- calf. Hamilton, G.F. and Tulleners, E.P., 32 Bohac, J.G. and Yates, W.D.G., 310 terone and 170-oestradiol levels. Guay, P. Metritis following parturition: serum proges- Brucellosis in moose (Alces alces). A serologi- and Lamothe, P., 18 terone and 1 7,3-oestradiol levels. The signif- cal survey in open range cattle area of north Mucometra with persistent corpus luteum in icance of the corpus luteum and the advisa- central British Columbia recently infected goats. El-Shafey, Samir, Fathalla, M., bility of using a luteolytic agent as a with bovine brucellosis. Hudson, M., Habib, I. and Al-Dahash, S., 165 treatment. Guay, P. and Lamothe, P., 18 Child, K.N., Hatler, D.F., Fujino, K.K. Myocarditis in puppies. Gagnon, A.N., Moldy sweetclover poisoning in cattle. and Hodson, K.A., 47 Crowe, S.P., Allen, D.G. and Downey, Radostits, O.M., Searcy, G.P. and Mit- Chlamydial infection in animals. Shewen, R.S., 195 chall, K.G., 155 Patricia E., 2 Myopathy in a dog, toxic. Wilson, J.S., 30 Observations on an outbreak of infectious Coccidiosis in baby pig diarrhea, intestinal. Neuropathology, aggression in dogs and bovine rhinotracheitis in a bull test station. Morin, M., Robinson, Y. and Turgeon, D., associated. Caldwell, D.S. and Little, P.B., Janzen, E.D., Smart, J.N. and Nicholson, 65 152 H.H., 24 Coccidiosis in chickens recorded in Alberta Nocardial pleuritis in a cat. Armstrong, P.J., Perspective on forage production in Canada. between 1973 and 1977. Lee, Eng-Hong, 189 Gareau, L., 77 Onderka, D.K. and Carlson, H.C., 239 Pansteatis in cats. Cropper, N., 192 Perspective on. respiratory disease in feedlot Coccidiosis in western Canada, bovine. Pansteatis, more on feline. Watson, A.D.J., cattle. Thomson, R.G., 181 Radostits, O.M. and Stockdale, P.H.G., 321 Plaque assay for malignant catarrhal fever 227 Parainfluenza virus type I in a group of virus and virus neutralizing activity. Conjunctivitis, survey of the conjunctival C57B16 mice, epizootic of. Desc6teaux, J.- Hazlett, D.T.G., 162 flora ofclinically normal cats and cats with. P., Boulay, G. and Potworowski, E., 21 Prevention and control of epidemics of acute Shewen, P.E., Povey, R.C. and Wilson, Pasteurellosis in young cattle, comments on undifferentiated diarrhea of beef calves in M.R., 231 update. Langford, E.V., 265 western Canada. Radostits, O.M. and Cystic dilatation of the parotid duct of a goat. Pasteurellosis in young cattle, response to Acres, S.D., 243 Slocombe, R.F., 130 comments on update. Jericho, K.W.F., 268 Preventive medicine and management in beef Dermatitis in carnivores associated with der- Pulmonary adenomatosis (Jaagsiekte) in feedlots. Church, T.L., 214 matophyte infection, granulomatous. sheep in Canada. Stevenson, R.G., Rehm- Regulation of the estrous cycle in domestic Holdfeld, N.W., Schiefer, B, and Boycott, tulla, A.J. and Thomson, R.G., 267 animals - a review. Downey, B.R., 301 B.R., 103 Pyloric stenosis in a foal. Barth, A.D., Barber, Repair of bovine and equine mandibular frac- Diarrhea in baby pigs in Quebec, coronavirus- S.M. and McKenzie, N.T., 234 tures. Murch, K.M., 69 like particles associated with. Turgeon, D., Rabies screening is questioned, fluorescent Response to "comments on update on pasteu- Morin, M., Jolette, J., Higgins, R., Marso- antibody test for. Chew, K., 321 rellosis in young cattle". Jericho, K.W.F., lais, G. and DiFranco, E., 100 Respiratory disease in feedlot cattle, perspec- 268 Diarrhea of beef calves in western Canada, tive on. Thomson, R.G., 181 Sertoli cell tumor in two related newborn prevention and control of epidemics of Sweetclover poisoning in a horse, moldy. Shorthorn calves. Palmer, N.C., King, A.B. acute undifferentiated. Radostits, O.M. McDonald, G.K., 250 and Basrur, P.K., 317 and Acres, S.D., 243 Thrombocytopenia associated with myxovi- Southern Ontario survey of eyeworms, The- Edema disease syndrome in young turkey rus vaccination, levamisole reduces the. lazia gulosa and Thelazia lacrymalis in cat- poults, chick. Pang, C.Y., Phillips, G.D. Pineau, S., Belbeck, L.W. and Moore, S., tle and larvae of Thelazia spp. in the face and Campbell, L.D., 12 82 fly, Musca autumnalis. Moolenbeek, W.J. Enteritis associated with a hemagglutinating Tyzzer's disease in foals. Yates, W.D.G., and Surgeoner, G.A., 50 virus, canine. Lynch, J.A., 28 Hayes, M.A., Finell, G.R. and Chalmers, Sporadic bovine leukosis: a description of Enteritis, canine parvoviral. Thomson, G.W. G.A., 63 eight calves received at Animal Diseases and Gagnon, A., 158 Urolithiasis in a herd of beef cattle associated Research Institute from 1974-1980. Enteritis in dogs and cats, Campylobacter. with oxalate ingestion. Waltner-Toews, D. Bundza, A., Greig, A.S., Chander, S. and Nayar, G.P.S., 139 and Meadows, D.H., 61 Dukes, T.W., 280 Gastric dilation corrected by gastropexy and Virus influenza chez l'homme et les animaux. Surgical resection of perforated abomasal pyloroplasty, recurrent canine. Vander Dea, S., Elazhary, M.A.S.Y. et Roy, R.S., ulcers in calves. Tulleners, E. P. and Hamil- Ende, C.W., 60 171 ton, G.F., 262 Haemophilus somnus infections I. ten year Sweetclover production and agronomy. (1969-1978) retrospective study of losses in Dogs Goplen, B.P., 149 cattle herds in western Canada. Saunders, Aggression in dogs and associated neuropa- Toxicity of Saskatoon serviceberry to cattle. J.R., Thiessen, W.A. andJanzen, E.D., 119 thology. Caldwell, D.S. and Little, P.B., Majak, W., Udenburg, T., Clark, L.J. and Haemophilus somnus infections II. Canadian 152 McLean, A., 74 field trial of a commercial bacterin: clinical Campylobacter enteritis in dogs and cats. Trace elements in the fetal and neonate rumi- and serological results. Saunders, J.R. and Nayar, G.P.S., 139 nant: a review. Hidiroglou, M., 328 Janzen, E.D., 219 Canine artificial insemination, Carter, J.G., Twenty years of experience with dairy herd Hip dysplasia, canine. Martin, S.W., Kirby, 193 health in Ontario. Cote, J.F., 340 K. and Pennock, P.W., 293 Canine enteritis associated with a hemagglut- Urolithiasis in a herd of beef cattle associated Histoplasmosis, disseminated canine. Mit- inating virus. Lynch, J.A., 28 with oxalate ingestion. Waltner-Toews, D. chell, Mardi and Stark, D.R., 95 Canine hip dysplasia: breed effects. Martin, and Meadows, D.H., 61 Infectious bovine rhinotracheitis in a bull test S.W., Kirby, K. and Pennock, P.W., 293

356 Canine parvoviral enteritis: a disease entity. Feline, see Cats Current status ofvarious parvovirus vaccines. Thomson, G.W. and Gagnon, A., 158 Alexander, D.C., 353 Canine rheumatoid arthritis. Heuser, W., 314 Horses Discovery of a coagulase from Erysipelothrix Chemoreceptor tumors diagnosed at the Chlamydial infection in animals: a review. rhusiopathiae. Chang, M.H. and Wu, S.F., Western College of Veterinary Medicine Shewen, Patricia E., 2 335 1967-1979. Yates, W.D.G., Lester, S.J. and Compendium of animal rabies vaccine mar- Euthanasia by hypoxia using nitrogen. Quine, Mills, J. H. L., 124 keted in Canada/Repertoire des vaccins J.P., 320 Chlamydial infection in animals: a review, antirabiques pour animaux, vendus au Fertilizer poisoning - is it a problem? Miller, Shewen, Patricia E., 2 Canada. 230, 241 A.E., 197 Compendium of animal rabies vaccine mar- Embryo transfer: a discussion on its potential Fluorescent antibody test for rabies. Chew, keted in Canada/ Repertorie des vaccins for infectious disease control based on a K., 321 antirabiques pour animaux, vendus au review of studies on infection of gametes Hormone treatment of nonproductive Canada. 230, 241 and early embryos by various agents. bitches. Carter, J.G., 158 Current status of various parvovirus vaccines. Eaglesome, M.D., Hare, W.C.D. and Isolation ofa hamster-lethal strain ofLeptos- Alexander, D.C., 353 Singh, Elizabeth, L., 106 pira hardjo. Kingscote, B., 266 Disseminated canine histoplasmosis: a clini- Fertilizer poisoning - is it a problem? Miller, Intestinal coccidiosis in baby pig diarrhea. cal survey of 24 cases in Texas. Mitchell, A.E., 197 Morin, M., Robinson, Y. and Turgeon, D., Mardi and Stark, D.R., 95 Les virus influenza chez l'homme et les ani- 65 Embryo transfer: a discussion on its potential maux. Une revue de la litterature. Dea, S., More on feline pansteatitis. Watson, A.D.J., for infectious disease control based on a Elazhary, M.A.S.Y. et Roy, R.S., 171 321 review of studies on infection of gametes Moldy sweetclover poisoning in a horse. Pansteatitis in cats fed fish-based commercial and early embryos by various agents. McDonald, D.K., 250 foods. Cropper, Neil, 192 Eaglesome, M.D., Hare, W.C.D. and Prevalence of reovirus 1, 2 and 3 antibodies in Plea against ear cropping. Longair, J.A., 286 Singh, Elizabeth, L., 106 Ontario racehorses. Sturm, R.T., Lang, Practical orthopedic power tools and gas ste- Euthanasia by hypoxia using nitrogen. Quine, G.H. and Mitchell, W.R., 206 rilization. Smith, G.G., 46 J.P., 320 Pyloric stenosis in a foal. Barth, A.D., Barber, Practical vacuum system for rapid blood col- Fine needle aspiration cytology in the diagno- S.M. and McKenzie, N.T., 234 lection. Dowdeswell, O.G., 224 sis of canine thyroid carcinoma. Thomp- Regulation of the estrous cycle in domestic Protestation contre le mauvais francais dans son, E. Joanne, Stirtzinger, Tatiana, animals - a review. Downey, B.R., 301 les pages jaunes de la Revue veterinaire Lumsden, J.H. and Little, P.B., 186 Repair of bovine and equine mandibular frac- canadienne. Pigeon, C., 226 Granulomatous dermatitis in carnivores tures. Murch, K.M., 69 Pulmonary adenomatosis (Jaagsiekte) in associated with dermatophyte infection. Tyzzer's disease in foals in western Canada. sheep in Canada. Stevenson, R.G., Rehm- Holdfeld, N.W., Schiefer, B. and Boycott, Yates, W.D.G., Hayes, M.A., Finell, G.R. tulla, A.J. and Thomson, R.G., 267 B.R., 103 and Chalmers, G.A., 63 Radiology improves diagnosis in trauma Heartworm in dogs in Canada in 1979. Slo- cases. Bernard, M.A., 49 combe, J.O.D. and McMillan, I., 159 Laboratory Animals Recommendations for slide presentations at Hormone treatment of nonproductive Chlamydial infection in animals: a review. meetings. Niilo, L., 240 bitches. Carter, J.G., 158 Shewen, Patricia E., 2 Recurrent canine gastric dilation corrected by Levamisole reduces the thrombocytopenia Embryo transfer: a discussion on its potential gastropexy and pyloroplasty. Vander associated with myxovirus vaccination. for infectious disease control based on a Ende, C.W., 60 Pineau, S., Belbeck, L.W. and Moore, S., review of studies on infection of gametes Response to "comments on update on pasteu- 82 and early embryos by various agents. rellosis in young cattle". Jericho, K.W.F., Myocarditis in puppies: clinical, pathological Eaglesome, M.D., Hare, W.C.D. and 268 and virological findings. Gagnon, A.N., Singh, Elizabeth, L., 106 Small animal medicine - advertising - Crowe, S.P., Allen, D.G. and Downey, Epizootic of parainfluenza virus type I in a ethics. Tonken, M., 138 R.S., 195 group of C57B16 mice. Desc6teaux, J.-P., Sodium fluoroacetate poisoning in a cat. Pet foods in Canada. Loew, F.M., 213 Boulay, G. and Potworowski, E., 21 Gammie, J., 64 Plea against ear cropping. Longair, J.A., 286 Isolation of a hamster-lethal strain ofLeptos- Survival of Trichinella spiralis larvae in deep- Radiology improves diagnosis in trauma pira hardjo. Kingscote, B., 266 frozen wolf tissue. Dies, K., 38 cases. Bernard, M.A., 49 Tribute to J.R. Kinney. Hutchison, J.A., 242 Recurrent canine gastric dilation corrected by Letters to the Editor Tyzzer's disease in foals in western Canada. gastropexy and pyloroplasty. Vander Abscess caused by Corynebacterium equi in a Yates, W.D.G., Hayes, M.A., Finell, G.R. Ende, C.W., 60 cat. Higgins, R. and Paradis, Manon, 63 and Chalmers, G.A., 63 Serological survey of dogs for Brucella canis Ascaridiose hepatique chez un agneau. Sau- Unrestricted advertising by professionals - a in southwestern Ontario. Bosu, W.T.K. vageau, R. et Frechette, J.-L., 66 panacea for economic ailment? Grenn, and Prescott, J.F., 198 British Columbia views on the Canadian H.H., 266 Solitary plasmacytoma in a dog with progres- Veterinary Journal. Smith, G.G., 242 Une association internationale de bibliothe- sion to a disseminated myeloma. Lester, Campylobacter enteritis in dogs and cats. caires veterinaires au service de la profes- S.J. and Mesfin, G.M., 284 Nayar, G.P.S., 139 sion veterinaire/an international associa- Surgical removal of an intratracheal nodule Canine artificial insemination. Carter, J.G., tion of veterinary librarians to serve the of ectopic bone and cartilage. Morrison, 193 veterinary profession. Jette, J.P., 300 R.R., 290 Canine parvoviral enteritis: a disease entity. Microbiology Toxic myopathy in a dog associated with the Thomson, G.W. and Gagnon, A., 158 Bovine virus diarrhea and bovine papular presence of monensin in dry food. Wilson, Coccidiosis in chickens recorded in Alberta stomatitis infection in a calf, concurrent. J.S., 30 between 1973 and 1977. Eng-Hong Lee, Bohac, J.G. and Yates, W.D.G., 310 Economics Onderka, D.K. and Carlson, H.C., 239 Brucella canis in southwestern Ontario, sero- Economics of dairy farming in Canada. Comments on "update on pasteurellosis in logical survey of. Bosu, W.T.K. and Pres- Thompson, S.C., 113 young cattle". Langford, E.V., 265 cott, J.F., 198 Incorporation - a solution to the veterinar- Coronavirus-like particles associated with Brucellosis in moose (AIces alces). A serologi- ian's income tax miseries? Rowan-Legg, diarrhea in baby pigs in Quebec. Turgeon, cal survey in an open range cattle area of P.K., 179,201,225 D.C., Morin, M., Jolette, J., Higgins, R., north central British Columbia recently Year end tax planning. Rowan-Legg, P.K., 347 Marsolais, G. and DiFranco, E., 100 infected with bovine brucellosis. Hudson, Correct syntax is part of a good scientific M., Child, K.N., Hatler, D.F., Fujino, K.K. Equine, see Horses paper. Chalmers, G.X., 352 and Hodson, K.A., 47

357 Campylobacter enteritis in dogs and cats. update on. Langford, E.V., 265 Pharmacology Nayar, G.P.S., 139 Pasteurellosis in young cattle, response to Chloramphenicol chez les bovins, concentra- Chlamydial infection in animals. Shewen, comments on update on. Jericho, K.W.F., tions seriques et biodisponibilite sanquine P.E., 2 268 du. Archimbault, P., Boutier, C. et Fellous, Clostridium perfringens in animal disease. Rabies screening is questioned, fluorescent R., 323 Niilo, L., 141 antibody test for. Chew, K., 321 Droques veterinaires-avis de conformite. 133, Conjunctival flora of clinically normal cats Rabies virus in foxes trapped in the Canadian 167, 237 and cats with conjunctivitis, survey of. Arctic, prevalence of. Secord, D.C., Brad- Levamisole reduces the thrombocytopenia Shewen, P.E., Povey, R.C. and Wilson, ley, J.A., Eaton, R.D. and Mitchell, D., 297 associated with myxovirus vaccination. M.R., 231 Reovirus 1, 2 and 3 antibodies in Ontario Pineau, S., Belbeck, L.W. and Moore, S., Coronavirus-like particles associated with racehorses, prevalence of. Strum, R.T., 82 diarrhea in baby pigs in Quebec. Turgeon, Long, G.H. and Mitchell, W.R., 206 Veterinary drugs-notices of compliance. 133, D.C., Morin, M., Jolette, J., Higgins, R., Salmonella from floor litter of 60 broiler 167, 237 Marsolais, G. and DiFranco, E., 100 chicken houses in Nova Scotia, Studies on. Corynebacterium equi in a cat, abscess caused Long, J.R., DeWitt, W.F. and Reut, J.L., Pigs, see Swine by. Higgins, R. and Paradis, Manon, 63 91 Dermatitis in carnivores associated with der- Tyzzer's disease in foals in western Canada. Preventive Medicine matophyte infection, granulomatous. Yates, W.D.G., Hayes, M.A., Finell, G.R. Dairy herd health in Ontario, twenty years of Holdfeld, N.W., Schiefer, B. and Boycott, and Chalmers, G.A., 63 experience with. Cote, J.F., 340 B.R., 103 Virus influenza chez l'homme et les animaux. Preventive medicine and management in beef Enteritis associated with a hemagglutinating Dea, S., Elazhary, M.A.S.Y. and Roy, feedlots. Church, T.L., 214 virus, canine. Lynch, J.A., 28 R.S., 171 Erysipelothrix rhusiopathiae, discovery of a Production coagulase from. Chang, M.H. and Wu, Nutrition Beef industry, Canadian. Fredeen, H., 39 S.F., 335 Copper deficiency in calves in northcentral Forage production in Canada, perspective on. Haemophilus somnus infections I. ten year Manitoba. Smart, M.E., Gudmundson, J., Gareau, L., 77 retrospective study of losses in cattle herds Brockman, R.P., Cymbaluk, N. and Doige, Housing and environment for dairy calves. in western Canada. Saunders, J.R., C., 349 Turnbull, J.E., 85 Thiessen, W.A. and Janzen, E.D., 119 Trace elements in the fetal and neonate rumi- Sweetclover production and agronomy. Haemophilussomnus infections II. Canadian nant. Hidiroglou, M., 328 Gopler, B.P., 149 field trial of a commercial bacterin: clinical Oncology and serological results. Saunders, J.R. and Rabbits Janzen, E.D., 219 Carcinoma in broiler chickens in Saskatche- Chlamydial infection in animals: a review. wan, dermal squamous cell. Riddell, C. and Shewen, Patricia E., 2 Herpesvirus type 1 in the sperm of a bull from Shettigara, P.T., 287 a herd with fertility problems, bovine. Discovery of a coagulase from Erysipelothrix Elazhary, M.A.S.Y., Lamothe, P., Silim, Chemoreceptor tumors diagnosed at the rhusiopathiae. Chang, M.H. and Wu, S.F., Western College of Veterinary Medicine 335 A. and Roy, R.S., 336 1967-1979. Yates, W.D.G., Lester, S.J. and Histoplasmosis, disseminated canine. Mit- Mills, J.H. L., 124 Reproduction chell, Mardi and Stark, D.R., 95 Plasmacytoma in a Artificial insemination, canine. Carter, J.G., Infectious bovine in a test dog with progression to a rhinotracheitis bull disseminated myeloma, solitary. Lester, 193 station, observations on an outbreak of. S.J. and Mesfin, G.M., 284 Bovine herpesvirus type I in the sperm of a Janzen, E.D., Smart, J.N. and Nicholson, bull from a herd with fertility problems. 24 Sertoli cell tumor in two related newborn H.H., Shorthorn calves. Palmer, N.C., King, A.B. Elazhary, M.A.S.Y., Lamothe, P., Silim, Leptospira hardjo, isolation of a hamster- and Basrur, P.K., 317 A. and Roy, R.S., 336 lethal strain of. Kingscote, B., 266 Embryo transfer: discussion on its potential in Thyroid carcinoma, fine needle aspiration Leptospiral antibodies swine in Quebec, cytology in the diagnosis of canine. for infectious disease control based on a serological survey of. Higgins, R., Desilets, review of studies on infection of gametes A. and Thompson, E. Joanne, Stirtzinger, Tati- Rene-Roberge, Elaine, 278 ana, Lumsden, J.H. and Little, P.B., 186 and early embryos by various agents. Leukosis, sporadic bovine. Bundza, A., Eaglesome, M.D., Hare, W.C.D. and Greig, A.S., Chander, S. and Dukes, T.W., Ovine, see Sheep Singh, Elizabeth L., 106 280 Estrous cycle in domestic animals, regulation Malignant catarrhal fever virus and virus neu- Parasitology of the. Downey, B.R., 301 tralizing activity, plaque assay for. Hazlett, Ascaridiose hepatique chez un agneau. Sau- Hormone treatment of nonproductive D.T.G., 162 vageau, R. et Frechette, J.-L., 66 bitches. Carter, J.G., 158 Myocarditis in puppies. Gagnon, A.N., Ascaris suum in Saskatchewan pigs. Polley, Crowe, S.P., Allen, D.G. and Downey, L.R. and Mostert, P.E., 307 Sheep and Goats R.S., 195 Coccidiosis in baby pig diarrhea, intestinal. Ascaridiose hepatique chez un agneau. Sau- Mycoplasma hyopneumoniae infection in Morin, M., Robinson, Y. and Turgeon, D., vageau, R. et Frechette, J.-L., 66 gnotobiotic pigs, duration of. Underdahl, 65 Border disease-like syndrome in a southern N.R. Kennedy, G.A. and Ramos, Jr., A.S., Coccidiosis in chickens recorded in Alberta Ontario sheep flock. Physick-Sheard, 258 between 1973 and 1977. Lee, Eng-Hong, P.W., Hopkins, J.B. and O'Connor, R.D., Mycotoxin to produce hemorrhaging in dairy Onderka, D.K. and Carlson, H.C., 239 53 cattle, failure of purified T-2. Weaver, Coccidiosis in western Canada, bovine. Chlamydial infection in animals: a review. G.A., Kurtz, H.J., Mirocha, C.J., Bates, Radostits, O.M. and Stockdale, P.H.G., Shewen, Patricia E., 2 F.Y., Behrens, J.C., Robison, T.S. and 227 Clostridium perfringens in animal disease: a Swanson, S. P., 210 Eyeworms, Thelazia gulosa and Thelazia review of current knowledge. Niilo, L., 141 Nocardial pleuritis in a cat. Armstrong, P.J., lacrymalis in cattle and larvae of Thelazia Compendium of animal rabies vaccine mar- 189 spp. in the face fly, Musca autumnalis, keted in Canada/Repertoire des vaccins Parainfluenza virus type I in a group of southern Ontario survey. Moolenbeck, antirabiques pour animaux, vendus au C57B16 mice, epizootic of. Desc6teaux, J.- W.J. and Surgeoner, G.A., 50 Canada. 230, 241 P., Boulay, G. and Potworowski, E., 21 *- Heartworm in dogs in Canada in 1979. Slo- Cystic dilatation of the parotid duct of a goat. Parvoviral enteritis, canine. Thomson, G.W. combe, J.O.D. and McMillan, I., 159 Slocombe, R.F., 130 and Gagnon, A., 158 Trichinella spiralis larvae in deep-frozen wolf Embryo transfer: a discussion on its potential Pasteurellosis in young cattle, comments on tissue, survival of. Dies, K., 38 for infectious disease control based on a

358 review of studies of infection of gametes Techniques and serological results. Saunders, J.R. and and early embryos by various agents. Anticoagulant for transport of bovine blood. Janzen, E.D., 219 Eaglesome, M.D., Hare, W.C.D. and Valli, V.E., McSherry, B.J., Fountain, Myxovirus vaccination, levamisole reduces Singh, Elizabeth L., 106 G.E., Friesen, L., Dwyer, P. and Forsberg, the thrombocytopenia associated with. Fertilizer poisoning - is it a problem? Miller, C.M., 252 Pineau, S., Belbeck, L.W. and Moore, S., A.E., 197 Artificial insemination, canine. Carter, J.G., 82 Leukomyelitis in the goat: a report of three 193 Parvovirus vaccines, current status of. Alex- cases. Wilkie, I.W., 203 Blood collection, practical vacuum system for ander, D.C., 353 Mucometra with persistent corpus luteum in rapid. Dowdeswell, O.G., 224 Repertoire des vaccins antirabiques pour goats. El-Shafey, Samir, Fathalla, M., Electrocardiographic parameters in the nor- animaux, vendus au Canada. 230 Habib, I. and Al-Dahash, S., 165 mal lactating Holstein cow. DeRoth, L., Protocols in medicolegal veterinary medicine 271 Veterinary Profession II. Cases involving death due to gunshot Euthanasia by hypoxia using nitrogen. Quine, Advertising by professionals, a panacea for and arrow wounds. Green, P.D., 343 J.P., 320 economic ailment, is unrestricted. Grenn, Pulmonary adenomatosis (Jaagsiekte) in Fine needle aspiration cytology in the diagno- H.H., 266 sheep in Canada. Stevenson, R.G., Rehm- sis of canine thyroid carcinoma. Thomp- Biblioth6caires veterinaires au service de la tulla, A.J. and Thomson, R.G., 267 son, E. Joanne, Stirtzinger, Tatiana, profession veterinaire, une association Regulation of the estrous cycle in domestic Lumsden, J.H. and Little, P.B., 186 internationale de. Jette, J.-P., 300 animals - a review. Downey, B.R., 301 Gas sterilization. Smith, G.G., 46 British Columbia views on the Canadian Trace elements in the fetal and neonate rumi- Gastric dilation corrected by gastropexy and Veterinary Joumal. Smith, G.G., 242 nant: a review. Hidiroglou, M., 328 pyloroplasty, recurrent canine. Vander Canadian Veterinary Journal begins its Ende, C.W., 60 twenty-first year with format change. Pha- Surgery Mandibular fractures, repair Abomasal ulcers in calves, surgical resection of bovine and neuf, L.P., I of perforated. equine. Murch, K.M., 69 Ear cropping, a plea against. Longair, J.A., Tulleners, E.P. and Hamil- Power tools, practical orthopedic. Smith, 286 ton, G.F., 262 G.G., 46 Cystic dilatation ofthe parotid duct ofa goat. Embryo transfer. Eaglesome, M.D., Hare, Slocombe, R.F., 130 Radiology improves diagnosis in trauma W.C.D. and Singh, Elizabeth L., 106 cases. Bernard, M.A., 49 Laws of the land. Porter, J., 34 Intratracheal nodule of ectopic bone and car- Slide presentations at tilage, surgical removal of. Morrison, R.R., meetings, recommen- M6decine veterinaire, I'ACV et vous. Webs- 290 dations for. Niilo, L., 240 ter, F.L., 102 Mandibular fractures repair of bovine and Medicolegal veterinary medicine, protocols in equine. Murch, K.M., 69 Therapeutics II. cases involving death due to gunshot and Metritis arrow wounds. Green, P.D., 343 Swine following parturition: serum proges- Pet foods in Canada. Loew, F.M., 213 Ascaris suum in Saskatchewan pigs: an abat- terone and 1 7,-oestradiol levels. Guay, P. Professional association, the role of the. toir survey of prevalence and intensity of and Lamothe, P., 18 Price, D.A., 33 infection. Polley, L.R. and Mostert, P.E., Protestation contre le mauvais francais dans 307 Toxicology les pages jaunes de la Revue v6terinaire Chlamydial infection in animals: a review. Edema disease syndrome in young turkey canadienne. Pigeon, C., 226 Shewen, Patricia E., 2 poults, chick. Pang, C.Y., Phillips, G.D. Revue vet6rinaire canadienne se donne une Coronavirus-like particles associated with and Campbell, L.D., 12 nouvelle parure pour ses vingt et un ans. diarrhea in baby pigs in Quebec. Turgeon, Fertilizer poisoning - is it a problem? Miller, Phaneuf, L.P., I D.C., Morin, M., Jolette, J., Higgins, R., A.E., 197 Small animal medicine - advertising - Marsolais, G. and DiFranco, E., 100 Myopathy in a dog associated with the pres- ethics. Tonken, M., 138 Duration of Mycoplasma hyopneumoniae ence of monensin in dry food, toxic. Wil- Syntax is part of a good scientific paper, cor- infection in gnotobiotic pigs. Underdahl, son, J.S., 30 rect. Chalmers, G.A., 352 N.R., Kennedy, G.A. and Ramos, Jr., A.S., Mycotoxin to produce hemorrhaging in dairy Tribute to J.R. Kinney. Hutchison, J.A., 242 258 cattle, failure of purified T-2. Weaver, Veterinary librarians to serve the veterinary Embryo transfer: a discussion on its potential G.A., Kurtz, H.J., Mirocha, C.J., Bates, profession, an international association of. for infectious disease control based on a F.Y., Behrens, J.C., Robison, T.S. and Jett, J.-P., 300 review of studies on infection of gametes Swanson, S.P., 210 Veterinary medicine, the CVMA and you. and early embryos by various agents. Saskatoon serviceberry to cattle, toxicity of. Webster, F.L., 101 Eaglesome, M.D., Hare, W.C.D. and Majak, W., Udenberg, T., Clark, L.J. and Singh, Elizabeth L., 106 McLean, A., 74 Wildlife and Zoo Animals Fertilizer poisoning - is it a problem? Miller, Sodium fluoroacetate poisoning in a cat. Brucellosis in moose (AIces alces). A serologi- A.E., 197 Gammie, J., 64 cal survey in an open range cattle area of Intestinal coccidiosis in baby pig diarrhea. Sweetclover poisoning in cattle, moldy. north central British Columbia recently Morin, M., Robinson, Y. and Turgeon, D., Radostits, O.M., Searcy, G.P. and Mit- infected with bovine brucellosis. Hudson, 65 chall, K.G., 155 M., Child, K.N., Hatler, D.F., Fujino, K.K. Les virus influenza chez l'homme et les ani- Sweetclover poisoning in a horse, moldy. and Hodson, K.A., 47 maux. Une revue de la literature. Dea, S., McDonald, G.K., 250 Chlamydial infection in animals: a review. Elazary, M.A.S.Y. et Roy, R.S., 171 Shewen, Patricia E., 2 Regulation of the estrous cycle in domestic Vaccines Prevalence of rabies virus in foxes trapped in animals - a review. Downey, B.R., 301 Compendium of animal rabies vaccine mar- the Canadian Arctic. Secord, D.C., Brad- Serological survey of leptospiral antibodies in keted in Canada. 241 ley, J.A., Eaton, R.D. and Mitchell, D., 297 swine in Quebec. Higgins, R., Desilets, A. Haemophilus somnus infections II. Canadian Survival of Trichinella spiralis larvae in deep- and Rene-Roberge, Elaine, 278 field trial of a commercial bacterin: clinical frozen wolf tissue. Dies, K., 38

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