WPS Volume 29 Issue 3 Cover and Back Matter

WORLD'S POULTRY SCIENCE JOURNAL

Volume 29 July- September 1973 Number 3

Editor Production Manager Dr. R. F. GORDON, C.B.E. P.R.C.V.S. Miss M. C. French, Houghton Poultry Research Station, B.O.C.M. Silcock, Houghton, Poultry Development Farm, Huntingdon PE17 2DA Risborough Road, ENGLAND. Stoke Mandeville, Aylesbury, Bucks, ENGLAND.

Associate Editors Prof. R. B. CUMMING, Australia Dr. M. ORLOV, U.S.S.R. Dr. WERNER HARTMANN, W. Germany Dr. W. E. SHAKLEE, U.S.A. Dr. J. E. LANCASTER, Canada Dr. WERNER THOMANN, Dr. P. MERAT, France Switzerland Mr. C. M. HA", U.K. Mr. A. THUMIM, Israel Dr. W. J. MUELLER, U.S.A. Dr. Y. YAMADA, Japan

Published quarterly by the WORLDS POULTRY SCIENCE ASSOCIATION Secretary and Asst. Treasurer: Dr. R. Coles. Treramleon, Bidnija, Malta, G.C.

Treasurer and Asst. Secretary: Dr. R. George Jaap, Ohio State University, 674 West Lane Avenue, Columbus, Ohio, U.S.A. 43210.

The World's Poultry Science Journal, Official Organ of the World's Poultry Science Association, is sent to all members in good standing. Current subscription to non-members is $6.00 (or its equivalent in other currency) per year. All items pertaining to production, advertising and mailing should be addressed to Miss M. C. French, World's Poultry Science Association, B.O.C.M. Silcock, Poultry Development Farm, Risborough Road, Stoke Mandeville, Aylesbury, Bucks, England. Manuscripts and items regarding content of the Journal, should be addressed to Dr. R. F. Gordon, CBE., Houghton Poultry Research Station, Houghton, Huntingdon PE17 2DA, England.

Downloaded from https://www.cambridge.org/core. IP address: 170.106.202.58, on 01 Oct 2021 at 20:14:57, subject to the Cambridge Core terms of use, available at https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0043933973000152 Council of The World's Poultry Science Association President: Professor Jod A. Caste116 (Spain). Eon. Past Presidents: Dr. H. H. Alp, (USA), Dr. R. Coles (England), Prof. E. E. Penionzhkevich, (USSR), Mr. Alex Wiltzer, (France). Vice-President: Dr. A. W. Jasper, (USA). Treasurer and Assistant Secretary: Dr. R. George Jaap, (USA). Secretary and Assistant Treasurer: Dr. R. Coles, (Malta). Editor: Dr. R. F. Gordon CBE FRCVS Journal Production Manager: Miss M. C. French, (England). Members of Council: Argentine: Ir. M. F. Bonino. Australia: Mr. H. Bray, Prof. R. B. Cumming, Dr. A. Johnson, Dr. M. W. McDonald, Mr. F. N. J. Milne, Mr. A. 0. Moll, Mr. R. H. Morris, Mr. G. Slennett, Mr. W. Stanhope, Mr. S. Wilkins. Belgium: Prof. C. H. van den Noortgaete, Prof. N. Reyntens, Dr. F. Van Wambeke. Brazil: Mr. L. von Schmidt. Canah: Prof. D. Clandinin, Mr. A. D. Davey, Dr. A. S. Johnson, Dr. J. D. Summers. Chile: Mr. L. Ameta, Dr. 0. Caceres. Czechoslovakia- Prof. A. Grom, Mr. S. Studeny. Denmark: Prof. J. Baelum, Prof. H. E. Marthedal. Egypt (U.A.R.): Dr. A. M. Kheireldin. Eire: Mr. J. O'Connell. Finland: Prof. K. Maijala, Mr. E. Tiitola. France: Dr. J. Aycardi, Prof. A. J. Bnon, Dr. C. Calet, Dr. C. Meurier. Germany (D.D.R.) : Prof. Heinz Brandsch, Prof. F. Lutzenberg. Germany (Federal) : Prof. Dr. A. Mehner, Prof. H. Schlutter, Prof. Dr. R-M. Wegner. Greece: Mr. P. Maniatis. Hungary: Dr. Domokos Densi, Mr. Laszlo Szentirmai. India: Dr. B. Panda. Iran: Vacancy Israel: Mr. L. Argov, Mr. Z. Ben-Adam, Mr. A. Lifschitz, Prof. M. Perek, Mr. J. Raviv, Mr. Y. Rosenberg, Dr. M. Taran, Mr. A. Thumim, Mr. M. Yedlin, Mr. E. Yizchaki. Italy: Prof. A. Bonomi, Prof. G. Giordani, Mr. F. Ventola. Jordan: Mr. Jack G. Khayyat. Japan: Mr. Shunichiro Ito, Dr. H. Morimoto, Mr. S. Nakajo, Dr. T. Nishikawa, Dr. S. Okamoto, Dr. N. Onishi, Dr. Y. Takamatsu, Dr. Y. Yamada, Mr. T. Yamaguichi, Mr. K. Yamanaka. Korea, (D.P.R.): Vacancy Korea, (Republic): Prof. Bong Kug Ohh, Prof. Jae K. Lee. Lebanon: Dr. J. Asmar, Dr. N. J. Daghir. Malta G.C.: Mr. M. C. Borg-Cardona, Mr. J. Debattista. Mexico: Vacancy. Netherlands: Ir. J. F. Helder, Dr. L. Hoedemaker, Prof. C. Romijn, Ir. M, P. Timmermans. Ir. N. ZwieD. New Zealand: Mi. M. R. Patchell, Prof. A. L. Rae, Dr. M. E. Sissins, Mr. M. A. Watts.

W.P.S.A. Branches and addresses of Secretaries Argentina: Ir. M. F. Bonino, Estacion Experimental del Inta, Per- gamino, Buenos Aires. Australia: A. 0. Moll, c/o P.O. Box 314, Liverpool, N.S. Wales 2170. Belgium: Dr. F. Van Wambeke, Rijksstation voor Kleinveeteelt, Burgemeesters van Gansberghelaan 92, 9220 Merelbeke. Canada: Dr. Roger B. Buckland, Dept. of Animal Science, Macdonald College of McGill University, P.O. Box 228, Macdonald College P.O., Quebec. Chile: L. Arrieta, Avicosan, Casilla 10080, Santiago. Czechoslovakia: Ing. Ladislav Bobis, Research Institute of the Poultry Industry, Bratislava, Senekd cesta 1. Denmark: L. Yding Sorensen, Vester Farimagsgade 1, 1606 Copenhagen V. Finland: Krister Eklund, 13100 Hameenlinna 10, Kanakouluntie 1-3. France: Dr. Philippe Merat, Laboratoire de Ghnttique Factorielle, I.N.R.A., C.N.R.Z., 78-Jouy-en-Josas. Germany (Federal) : Frau Prof. Dr. Rose-Marie Wegner, Institut fur Tierzucht und Tierfutterung, Universitat Bonn, Endenicher Allee 15, Bonn.

Downloaded from https://www.cambridge.org/core. IP address: 170.106.202.58, on 01 Oct 2021 at 20:14:57, subject to the Cambridge Core terms of use, available at https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0043933973000152 W.P.S.A. Branches-contd. Germany (D.D.R.) : Doz. Dr. Habil H. Pingel, Sektion Tierproduktion und Vet. Med., der Karl Marx Universitat, 703 Leipzig, Fichte- strasse 28, D.D.R. Greece: Dr. N. J. Drouliscos, Department of General Botany, University of Athens, Athens 621. Hungary: Dr. Laszlo Szentirmai, Mezogazdasagi es Elelmezesugyi Miniszterium, Kossoth ter 11, Budapest V. Israel: A. Thumim, P.O. Box 807, Kfar Shmariahu. Italy: Professor G. Giordani, Istituto de Zoocolture, Via S. Gia- como 9,40126 Bologna. Japan: Dr. Y. Yamada, National Institute of Animal Industry, Aoba-cho, Chiba-shi. Korea, D.P.R. : Jo. Heung Yong, Korea Poultry Science Association, Moranbong District, Pyongyang. Korea, Republic: Prof. In. Kyu Han, Dept. of Animal Science, College of Agriculture, Seoul National University, Suwon 170. Lebanon: Salim Tyan, c/o Agricultural Supplies Co., 199, Bechara Khoury Avenue, Beirut. Malta: J. Debattista, Simon Flats 1, Dr. Zammit Street, Balzan. Netherlands: Ir. D. A. Ehlhardt, Spelderholt Institute for Poultry Research, Beekbergen. New Zealand: M. A. Watts, P.O. Box 2, Stokes Valley, Lower Hutt. Norway: Dagfinn Valland, Norsk Fjorfeavlslag, Sandakerveien 104B, Oslo 4. Philippines: Dr. Elpidio C. Coligado, Dept. of Animal Husbandry, U.P. College of Agriculture, College, Laguna. Poland: Prof. Dr. Ewa. A. Potemkowska, ul. J. Bruna 10 m 33, 02-594 Warszawa. South Africa: P. A. M. GOUS,P.O. Box 1795, Johannesburg. Spain: Professor JosC A. Castell6, Real Escuela de Avicultura, Arenys de Mar, (Barcelona). Sweden : Sven Soderberg, Svensk Fj&rderf%skotsel,Gamla Brogatan 29, 111 20 Stockholm. Switzerland: Harald Ebbell, Haselweg 2, 3028 Spiegel bei Bern. United Kingdom: Miss M. C. French (AdministrativeSecretary) BOCM- Silcock Ltd. Demonstration Farm, Risborough Road, Stoke Mandeville, Bucks. U.S.A.: W. R. Jenkins, Extension Service-USDA, 5509 South Agriculture Building, Washington D.C., 20250. U.S.S.R.: Mrs. Nina Selina, Room 436, U.S.S.R. National Branch of the W.P.S.A., Orlikov Pereulok 1/11, Moscow 1-139.

It is with deep sorrow that we announce the sudden death of Mr. C. G. May, M.B.E., the Production Manager of the Journal, on Monday, May 14th, at the age of 74. Tributes from Dr. Coles and the Editor appear in this issue which was in galley-proof stage at the time of Mr. May’s death. Space will be reserved in the next issue for other tributes from his

~ many friends throughout the world.

Tribute by Dr. R. Coles and Dr. R. F. Gordon, C.B.E.,

Although we have been close friends of George May’s for over 40 years it is only during the last few years during which we have worked together on WPSA affairs that we have come to appreciate fully the high quality of his journalistic skill, his tremendous vitality and vigour despite his years, and his meticulous regard for detail. His self-set aim of determining that the journal must go out on time was always achieved and to this end he would think nothing of leaving his home in London in the early hours of the morning, putting in a full working day with the printers in Cambridgeshire and at Houghton, and driving home late in the evening, often in darkness and inclement weather. Nothing was too much trouble for him and in C. G. May, M.B.E., recent years he seemed to live for the World’s Poultry Science Association which was his life, his hobby and almost his sole interest. He was constantly cheerful, and a tower of strength, in the face of any troubles or crises. The debt of gratitude owed to him by the W.P.S.A. was fortunately marked during his lifetime by the award of the Macdougall Medal, of which he was justly proud, and in the October/December 1972 issue the many qualities which had justified the award were enumerated. George May had a full and happy life and died as we believe he would have wished to do, in harness. He will be mourned by a host of friends all over the world.

224

T is recommended that all those interested in the welfare of the I poultry industry should read with care the review articles on the control of Marek’s disease published in this issue of the journal. It was recognised in the early years of the century that disease was one of the limiting factors in the expansion and prosperity of poultry production throughout the world (e.g. the devas- tation caused by pullorum disease in the 1930s) and for many years it has been known that Marek‘s disease is one of the major causes of loss. We are fortunate that these excellent review articles have been contributed by two of the leading workers in the field of avian tumour viruses. That the causal agent of Marek’s disease is a herpesvirus was established almost simul- taneously in 1967 by Biggs and his co-workers Professor Marek at the Houghton Poultry Research Station and by Burmester and his colleagues at the Regional Poultry Research Laboratory East Lansing, USA. In 1969 it was shown at Houghton that a chicken strain of the herpesvirus when attenuated by serial passage through chick kidney cells produced an efficient vaccine. In field trials and subsequent commercial use this vaccine gave protection almost beyond expectation, but it presented certain problems in commercial production and distribution. In 1970 the East Lansing workers showed that a herpesvirus originating from turkeys offered equally good protection when used as a vaccine and Purchase was largely responsible for the associated field trials. 225

It is fitting that both workers, Biggs with his co-worker Payne in 1964 and Purchase with his co-worker Okazaki in 1972, have received the Tom Newman International Award for work in the Marek's disease field. The close contact maintained between the two institutes mentioned, including the exchange of workers, programmes and prepublication results, has been most fruitful and an outstanding example of scientific collaboration at its best. Much, however, remains to be elucidated with regard to the epizootiology, immunology and genetics of the disease in order to achieve a better understanding of control by husbandry or breeding measures.-R.F.G.

PRODUCTION MANAGER

Arrangements have been made for Miss M. C. French to act as Production Manager for the time being. Miss French is the Admin- istrative Secretary of the U.K. Branch of the Association; she was a colleague of the late Dr. W. P. Blount (Past Vice-president of the W.P.S.A.) for over 20 years and has been a member of the W.P.S.A. over that period.

Material for the Production Manager should now be sent to Miss M. C. French, B.O.C.M. Silcock Ltd., Poultry Development Farm, Risborough Road, Stoke Mandeville, AYLESBURY, Bucks, England. Papers submitted for publication should, as before, be sent to the Editor at Houghton Poultry Research Station, Houghton, Huntingdon, England.