Frequently Asked Questions: Laying Hens
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(Mother Hens' Uropygial Secretion Analogue) Sur Le Stress Des Poulets
TTHHÈÈ SSEE En vue de l'obtention du DOCTORAT DE L’UNIV ERSITÉ DE TOULOUSE Délivré par L'Institut National Polytechnique Discipline ou spécialité : Pathologie, Toxicologie, Génétique & Nutrition Présentée et soutenue par Iltud MADEC Le 19 mai 2008 Titre : Effets du sémiochimique MHUSA (Mother Hens’ Uropygial Secretion Analogue) sur le stress des poulets de chair. Approches zootechnique, physiologique et comportementale. JURY Pr Jean DAYDE, Président. Pr Xavier MANTECA, Rapporteur. Pr Giovanni RE, Rapporteur. Pr Patrick PAGEAT, Tuteur. Dr Jean-François GABARROU, Tuteur. Pr Xavier FERNANDEZ, Membre. Dr Anne-Marie LESENEY, Membre. Ecole doctorale : Sciences Ecologiques, Vétérinaires, Agronomiques et Bioingéniéries Unité de recherche : Institut de Recherche Phérosynthèse, Ecole d'Ingénieurs de Purpan Directeur(s) de Thèse : Pr Vassilia THEODOROU Rapporteurs : MM. les Pr X. MANTECA et G. RE SOMMAIRE Remerciements Liste des publications Liste des sigles et abréviations Liste des illustrations INTRODUCTION Partie I : contexte de l’étude Partie II : objectifs de travail et résultats Partie III : discussion générale CONCLUSION Bibliographie Table des matières 1 « On aime sa mère presque sans le savoir, et on ne s’aperçoit de toute la profondeur des racines de cet amour qu’au moment de la séparation dernière. » Guy de Maupassant 2 Remerciements Ce mémoire n’est pas un aboutissement, mais une étape. Néanmoins ce moment marque, comme tous les moments forts d’une vie. Il faut maintenant passer à autre chose en se servant de cette dernière comme d’un atout. Cette étape m’a vu grandir et évoluer vers une certaine forme de maturité, j’espère en faire partager mon entourage. C’est ce dernier, tant professionnel que personnel (parfois les deux sont conjugués), que je souhaite remercier dans ce message. -
Back to the Future of Animal Law ALDF Presents a Weekend of Scholarship and Insights
10 2010 MMER Victory for More Good News 90 Days 29.2 U Farmed Animals For Kentucky’s In Jail for S 3 In California 6 Shelter Animals 8 Puppy’s Killer ND FU ENSE F DE AL G LE Tails wagging at Harvard Law School for ALDF’s Future of Animal Law Conference ANIMAL HE Back to the Future F T O of Animal Law ERS ALDF presents a weekend of scholarship and insights T OR TAKE MORE THAN 300 ATTORNEYS, law stu- animal law, veterinary forensics and tox- dents, academics and animal advocates icity testing without animals, the confer- UPP from around the globe, gather them at ence addressed what is doubtless the most S one of the world’s most prestigious law pressing issue advocates face: animals schools, and you’ve got more than an used as food. OR international perspective on legal issues – you’ve got the Future of Animal Law at FARMED ANIMALS F Harvard University. Charting a Course for the Protection of ER Sponsored by ALDF and the Harvard Farmed Animals was one of the highlights Student Animal Legal Defense Fund of the Future of Animal Law, and it featured TT (SALDF) chapter, the April 9–12 confer- a panel representing the fields of law, sci- ence was the scene of strategies, panel ence, policy and economics. Speakers discussions and workshops, all aimed at included Patrick Brown of the Stanford SLE educating and inspiring those who want University School of Medicine; Carter W to use the legal system to advance the Dillard, counsel to the Humane Society of interests of animals. -
Chickens As Patients - UEP2013 - VIN
7/27/2020 Chickens as Patients - UEP2013 - VIN Chickens as Patients AAVAC-UPAV 2013 Anna Meredith, MA, VetMB, PhD, CertLAS, DZooMed, MRCVS Royal (Dick) School of Veterinary Studies, University of Edinburgh, Scotland, UK Introduction The keeping of non-commercial backyard poultry is increasing greatly in popularity. Ducks, geese, pheasants, guinea fowl and other species may all be kept, but chickens are probably the most common species presented in general practice. People keep chickens for different reasons, including just having a few hens for private egg production and consumption, breeding of exhibition or "fancy" birds, small layer or meat bird flocks, or as true pets that also help to weed the garden. Chicken owners will vary from very experienced to complete novices. For these types of poultry, the local small animal or mixed veterinary practitioner is likely to be called upon rather than an experienced commercial poultry vet, although this may well be after advice has been sought from the breeder, agricultural merchant or internet first and various treatments applied. Many owners become very attached to their birds and invest time and money in their care, and will expect their veterinary surgeon to be knowledgeable, able to advise on general husbandry and management and to treat any problems effectively. The domestic chicken is descended from the red junglefowl (Gallus gallus), but has been domesticated into a large variety of breeds. Choice of breed usually depends on the purpose of keeping the chicken. Bantams are often kept if space is limited; these are small varieties with correspondingly small eggs, and most large breeds have a bantam (miniature) version. -
Controlling Feather Pecking and Cannibalism in Laying Hens Without
CONTROLLING FEATHER PECKING & CANNIBALISM IN LAYING HENS WITHOUT BEAK TRIMMING A Compassion in World Farming Report by Heather Pickett MSc BSc (hons) October 2009, revised March 2011 Registered Charity No. 1095050 Compassion in World Farming is grateful to The Rufford Maurice Laing Foundation whose funding made this research possible. www.rufford.org EXECUTIVE SUMMARY Hens are often beak trimmed to reduce the risk of welfare problems caused by feather pecking and cannibalism. The consequences of beak trimming for welfare include trauma during the procedure, pain due to tissue damage and nerve injury, loss of normal function due to reduced ability to sense materials with the beak, and loss of integrity of a living animal. This report reviews the evidence from the scientific literature and from practical experience, which demonstrates that feather pecking and cannibalism can be controlled in non-cage systems without beak trimming through (i) the use of appropriate strains and selective breeding to further reduce the hens’ propensity to feather peck and (ii) good design of non-cage systems and implementation of a range of preventive management practices. Experience in other European countries where beak trimming has been prohibited indicates that, with experience, laying hens can be successfully managed in non-cage systems without beak trimming. The Department for Environment, Food and Rural Affairs has repealed the ban on the beak trimming of laying hens in England, which was due to come into force on 1st January 2011. Instead, the government has merely banned the use of the hot blade method for beak-trimming, except in emergencies on-farm, while allowing beak-trimming by the infra-red (IR) beam method to continue. -
Impact of Nutritional Factors on Feather Pecking Behaviour of Laying Hens in Non-Cage Housing Systems
Impact of nutritional factors on feather pecking behaviour of laying hens in non-cage housing systems 1* 2 1 1 M.M. VAN KRIMPEN , R.P. KWAKKEL , G. ANDRÉ , C.M.C. VAN DER PEET-SCHWERING , L.A. 3,4 2 DEN HARTOG and M.W.A. VERSTEGEN 1Animal Production, Animal Sciences Group, Wageningen UR, PO Box 65, NL-8200 AB Lelystad, The Netherlands; 2Animal Nutrition Group, 3Animal Production Systems Group, Department of Animal Sciences, Wageningen University, PO Box 338, NL-6700 AH Wageningen, The Netherlands and 4Nutreco R&D, PO Box 220, NL-5830 AE Boxmeer, The Netherlands *Corresponding author: [email protected] The expected bans on battery cages (EU) and beak trimming (e.g. The Netherlands) may cause an increased risk of feather pecking and cannibalism in layers. Many factors influence feather pecking behaviour, but in this review we will focus on nutritional factors. Dietary deficiencies, resulting in inaccurate delivery of nutrients, may increase feather pecking behaviour and cannibalism. Severe feather pecking has been demonstrated in birds that were fed too low mineral levels, protein levels or amino acid levels (methionine, arginine). Feeding high-NSP diets, low energy diets, or roughages reduced feather pecking. Providing additional grain or straw in the litter during rearing could result in lower levels of feather pecking behaviour in adult stages. Nutritional factors seem to reduce feather pecking behaviour in laying hens if these factors increase the time related to foraging, feed intake and satisfying. Laying hens may spend more time on these behaviours when they are fed 1) mash diets in stead of crumbles or pellets, 2) low energy diets, 3) high (in-)soluble fibre diets or 4) roughages. -
Egg Production in Canada
Egg Production in Canada Modern domestic strains of egg-laying chickens (also called ‘layers’, ‘laying hens’, or simply ‘hens’) originate from Jungle Fowl and we know that in the wild, these hens would build a nest in which to lay their egg, would forage for food and would perch up high at night. While modern strains of hens are different from their ancestors, they still retain many of the behaviour patterns of their ancestors and are strongly motivated to perform those behaviours. The Life of an Egg-Laying Hen In B.C., more than 2 million hens are raised for egg production each year. Chicks are hatched at hatcheries where the male and females are separated soon after hatching. Female chicks are kept at the hatchery for up to 2 days where they are vaccinated against diseases. Beak trimming is routinely performed on flocks destined for commercial production. This is a painful procedure that involves removing a portion of the beak using either a blade (hot or cold) or a laser and is performed within the first week of life. Male chicks of egg-laying breeds are of little economic value as they will not produce eggs, and, due to genetics, grow much slower than breeds of chickens raised for meat. As a result, they are all killed after hatching. Female chicks are either transported directly to the farm or, more commonly, to a pullet grower who rears the chickens until they reach approximately 19 weeks of age. At that time, the pullets are transported to the farm. The average hen will begin laying eggs at between 18 - 20 weeks of age (depending on the season and the breed of hen that is raised). -
ARC News a Newsletter from the Animal Rights Coalition
AARRCC NNEEWWSS The Poultry Issue The Poultry Issue Fall 2007 A publication of the Animal Rights Coalition to promote a compassionate world A Day in a Life in the City with Chickens by Mary Britton Clouse, Chicken Run Rescue It’s just before sunrise. Classical music seeps softly from the clock radio. The floor creaks as I step out of bed and the roosters stir from their sleep just below in our basement. Wings slap a warning that the first crow will come from Roseman – ARK-A-ARK-A-ARKGGG in his old, gravelly voice. We’ve been hearing that crow for almost five years now. Young Bing, named after Bing Crosby, chimes in with a melodious and melancholy greeting that sounds much like the first few notes of the Air Force anthem “Off We Go” – an appropriate way to start a day. I dress and pad downstairs. I sing a good morning song A beautiful day at Chicken Run Rescue to my beautiful birds as I tug on the lights. All seven girls are already up and pacing at their pen door, anxious to Rosco gets his eye drops for a slight infection. Roseman trundle up the stairs to the shed door and outside and see gets a half tablet of Baytril for a persistent foot infection. what garden snacks are left from yesterday’s treats. They Bing has just recovered from a very serious and unsolved have been thinking about them all night. Several also illness, perhaps from some toxic berry he found in the have plans to lay eggs in a little while. -
Improving Feather Cover a Guide to Reducing the Risk of Injurious Pecking Occurring in Non-Cage Laying Hens
Improving Feather Cover A guide to reducing the risk of injurious pecking occurring in non-cage laying hens 2013 © University of Bristol Introduction This guide summarises strategies available to reduce the risk of injurious pecking occurring in non- cage laying hens during both rearing and laying. Beak-trimming and alterations to lighting are commonly practised to control injurious pecking, but these are not ideal in terms of bird welfare. The strategies discussed in this guide offer many ways of reducing the risk of injurious pecking occurring, which may also offer other benefits. Injurious pecking (IP) is an umbrella term covering a group of behaviours; gentle and severe feather pecking, vent pecking, and cannibalistic pecking. Gentle feather pecking (GFP) consists of gentle pecks to the tips of the feathers. This type of feather pecking (FP) usually does not result in much damage and is often ignored by the recipient. It can indicate a welfare problem in the bird performing the behaviour, and precede more serious pecking. Severe feather pecking (SFP) causes the most damage to Cannibalistic pecking occurs when SFP the recipient; it consists of forceful pecks and pulls of has led to feather loss and bald feathers that are frequently eaten and results in feather patches. Pecking can then continue on loss especially on the back, vent and tail area. Victims of the skin, leading to wounds and may SFP often initially move away, squawk or confront the eventually lead to the victim’s death pecker in response to receiving SFP, which are painful. If due to excessive blood loss, tissue SFP continues, however, victims have also been observed damage & infections. -
Chów I Hodowla Zwierząt Gospodarskich Na Przestrzeni 70 Lat - Problemy I Wyzwania
70 LAT g | 1950-2020 { m x z b Chów i hodowla zwierząt gospodarskich na przestrzeni 70 lat - problemy i wyzwania Zakład Hodowli Drobiu Zakład Hodowli Drobnego Inwentarza Instytutu Zootechniki PIB MONOGRAFIA Kraków 2020 Chów i hodowla zwierząt gospodarskich na przestrzeni 70 lat – problemy i wyzwania Zakład Hodowli Drobiu Zakład Hodowli Drobnego Inwentarza Instytutu Zootechniki PIB MONOGRAFIA Kraków 2020 1 INSTYTUT ZOOTECHNIKI PAŃSTWOWY INSTYTUT BADAWCZY 32-083 Balice, ul. Krakowska 1 tel. 12 3572500 fax 12 422 8065 www.izoo.krakow.pl facebook.com/IZOO.PIB twitter.com/iz_pib [email protected] Monografia pod redakcją: prof. dr hab. Dorota Kowalska dr hab. Katarzyna Połtowicz, prof. IZ PIB Recenzenci: prof. dr hab. Grażyna Jeżewska-Nitkowska prof. dr hab. Stanisław Socha Opracowanie redakcyjne: mgr Danuta Dobrowolska Opracowanie graficzne, projekt okładki i skład tekstu: mgr Bogusława Krawiec Fot. na okładce: archiwum Zakładu Hodowli Drobnego Inwentarza J. Calik, K. Anders ISBN 978-83-7607-353-8 © Copyright by Instytut Zootechniki PIB Ark. wyd. 15,1 Ark. druk. 14,4 Druk: Zespół Wydawnictw i Poligrafii IZ PIB 2 PRACE NAUKOWE Z ZAKRESU HODOWLI DROBIU I DROBNEGO INWENTARZA W INSTYTUCIE ZOOTECHNIKI PAŃSTWOWYM INSTYTUCIE BADAWCZYM 3 Spis treści Zakład Hodowli Drobiu ..................................................................... 5 Zakład Hodowli Drobnego Inwentarza ............................................. 121 4 Zakład Hodowli Drobiu 5 Spis treści rozdziału Zakład Hodowli Drobiu 1. Eugeniusz Herbut, Katarzyna Połtowicz: Rys historyczny ……………………………………………..…………… 7 2. Józefa Krawczyk, Jolanta Calik: Genetyka i bioróżnorodność drobiu …..………………………………… 17 3. Ewa Sosnówka-Czajka, Iwona Skomorucha: Systemy utrzymania a produkcyjność i dobrostan drobiu …….………..... 38 4. Iwona Skomorucha, Ewa Sosnówka-Czajka: Wpływ różnych technologii chowu na produkcyjność i dobrostan kurcząt brojlerów …………………………………………………………………. -
Comparative Effects of Furnished Cages and Battery Cages on Behavioral Exhibitions in White Leghorn Chickens
Research Note Furnished cage system and hen well-being: Comparative effects of furnished cages and battery cages on behavioral exhibitions in White Leghorn chickens K. Mile* and H.-W. Chengf' *Depai.tirient of Animal $renc:es. Purdue University. Wet Lafayette, IN 7907: (lad TLicstocJi Behacior Research Unit. USDA -Aqricuitwr'al Research Service. West Lafayette. IN 47907 ABSTRACT The battery cage system is being banned birds were housed per cage, providing a stocking den- ill European Union before or by 2012, and the fur- sity of 610 (-Ili 2 of floor space per bird. Behavioral ob- nished cage system will be the only cage system allowed servations were conducted using the Xoldus Observer after 2012. This stud y was conducted to exanune the software package. The birds were observed at 5-mm different effects of caging s ystems, furnished ('ages vs. intervals for the entire light period. The birds housed in battery cages, oil behaviors. One hundred ninety- battery cages had higher posture and behavioral transi- two 1 -d-old non-beak-trinuned I-Tv-Line \V-36 White tions and increased time spent walking and perform- chicks were reared using standard nianageinent ing exploratory behavior (P < 0.05. 0.01. respective- practices in raised wire cages. At 19 wk of age, the birds ly) which may indicate they were stressed. resulting were randomly assigned into battery cages or furnished iii restlessness. whereas the birds housed in furnished cages. The battery cages were commercial wire cages ('ages had higher levels of preening ( P < 0.05). Preen- containing 6 birds per cage. -
The Influence of the Housing System on Salmonella Infections in Laying Hens
Zoonoses and Public Health REVIEW ARTICLE The Influence of the Housing System on Salmonella Infections in Laying Hens: A Review S. Van Hoorebeke1, F. Van Immerseel2, F. Haesebrouck2, R. Ducatelle2 and J. Dewulf1 1 Veterinary Epidemiology Unit, Department of Reproduction, Obstetrics and Herd Health, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium 2 Department of Pathology, Bacteriology and Avian Diseases, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium Impacts • An overview is given of all published observational studies on the influence of the housing system of laying hens on the prevalence of Salmonella. • Based on the available epidemiological data it is unlikely that the move from conventional battery cages to enriched cages and non-cage systems will increase the prevalence of Salmonella in laying hens. • Other factors such as the farm and flock size, the stocking density, stress, the carry-over of infections through pests, hygiene measures, etc., also play a role. Keywords: Summary Laying hens; Salmonella; housing system From 2012 onwards, housing of laying hens in conventional battery cages will Correspondence: be forbidden in the European Union and only enriched cages and non-cage S. Van Hoorebeke. Veterinary Epidemiology housing systems such as aviaries, floor-raised, free-range and organic systems Unit, Department of Reproduction, Obstetrics will be allowed. Although this ban aims at improving the welfare of laying and Herd Health, Faculty of Veterinary hens, it has also initiated the question whether there are any adverse conse- Medicine, Ghent University, Salisburylaan 133, quences of this decision, especially with respect to the spread and/or persistence 9820 Merelbeke, Belgium. -
Alternatives to the Barren Battery Cage for the Housing of Laying Hens in the European Union
ALTERNATIVES TO THE BARREN BATTERY CAGE FOR THE HOUSING OF LAYING HENS IN THE EUROPEAN UNION A report by Compassion in World Farming 3 2007 © Dale Arey (CIWF) ALTERNATIVES TO THE BARREN BATTERY CAGE FOR THE HOUSING OF LAYING HENS IN THE EUROPEAN UNION A report by Compassion in World Farming Written by Heather Pickett BSc (Hons) MSc 2007 © Compassion in World Farming, 007 ISBN 900 56 407 Compassion in World Farming nd Floor, River Court, Mill Lane, Godalming, Surrey GU7 EZ, UK Tel: +44(0)483 5950 Fax: +44(0)483 86639 Email: [email protected] Website: www.ciwf.org.uk Registered Charity Number 095050; a Company limited by Guarantee, registered number 4590804. 3 Contents Executive Summary 5 1. Introduction 8 2. Alternatives to the barren battery cage for the housing of laying hens in the European Union 8 2. ‘Enriched’ cages 8 2. Non-cage systems 9 3. The ability of ‘enriched’ cages and non-cage systems to meet the behavioural needs of hens 10 3. The natural behaviour and cognitive abilities of hens 10 3. Nesting 10 3.3 Foraging and dustbathing 13 3.4 Perching 15 3.5 Space requirements and social group size 16 4. Addressing key welfare concerns in ‘enriched’ cages and non-cage systems 19 4. Feather pecking and cannibalism 19 4. Bone strength and fractures 23 4.3 Mortality 24 5. Overall comparison of welfare in ‘enriched’ cages and non-cage systems 25 6. Economics of changing to non-cage systems 27 6. Production costs in non-cage systems 27 6.