Species: Laying hens

Computational Fluid Dynamics Analysis of Alternative Ventilation Schemes in Cage-Free Poultry Housing

Long Chen, Eileen E. Fabian-Wheeler, John M. Cimbala, Dan Hofstetter, Paul Patterson

Published in 2021

Scientific paper presenting and testing computational fluid dynamics models under 4 different sets of ventilation conditions to simulate airflow in cage-free chicken houses. The transition to cage-free rearing calls for changes to environmental conditions to ensure the best quality of animal welfare.

Document Types: Scientific paper

Animal categories: Poultry

Keywords:Adaptation of the animal to the environment, Livestock buildings, Living environment, Stress

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Exploring the performance of system changes in Dutch broiler production to balance animal welfare, ammonia emissions and particulate matter emissions with farm profitability

Luuk S.M. Vissers, Alfons G.J.M. Oude Lansink, Helmut W. Saatkamp

Published in 2021

Scientific paper testing out various combinations of changes to elements of the Dutch broiler rearing system that might satisfy EU and consumer expectations in terms of environmental protection and animal welfare, while safeguarding the incomes of farmers. Those combinations that included animal welfare changes (lower stocking density, enrichment and/or daylight), tube heaters to reduce NH3 emissions and use of an ionisation technique to reduce fine particle emissions gave the best results.

Document Types: Scientific paper

Animal categories: Poultry

Keywords: Enrichment, Environment, Housing, Living environment,Livestock farming system,Societal issues

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Leg health of meat chickens: impact on welfare, consumer behaviour, and the role of environmental enrichment

V. Phibbs, P. J. Groves, W. I. Muir

Published in 2021

A scientific review of animal welfare and consumer attitudes to broiler welfare. Leg disorders, techniques for assessing leg health, and possibilities for enriching the birds' environment to improve their mobility and leg health are described.

Document Types: Scientific review

Animal categories: Poultry

Keywords:Pain, Enrichment, Welfare indicators

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French Assemblée Nationale: Written answer to question n°32507: Conditions d’élevage et les mutilations subies par les chapons

Dimitri Houbron (Agir ensemble - Nord), French Ministry of Agriculture and Food

Published in 2021

Answer to a parliamentary question on whether the French Government intends to ban the practice of caponisation.

Document types: Regulation/Certification

Animal categories: Poultry

Keywords: Pain, Societal issues, Mutilation

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French Assemblée Nationale: Written answer to question n°34378: Conditions d’élevage et les mutilations subies par les chapons

Danièle Obono (La France insoumise - Paris), French Ministry of Agriculture and Food

Published in 2021

Answer to a parliamentary question on the Government's intentions regarding the practice of caponisation.

Document types: Regulation/Certification

Animal categories: Poultry

Keywords: Pain, Societal issues, Mutilation

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French Assemblée Nationale: Written answer to question n°32713: Conditions d’élevage et de castration des chapons en France

Alexandra Valetta Ardisson (La République en Marche - Alpes-Maritimes), French Ministry of Agriculture and Food

Published in 2021

Answer to a parliamentary question on a possible legal ban on the practice of caponisation.

Document types: Regulation/Certification

Animal categories: Poultry

Keywords: Pain, Societal issues, Mutilation

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Impact of parasites on Australian laying hen welfare

Peter J. Groves

Published in 2021

Scientific review of the increase in intestinal parasites in Australian poultry in cage-free and free-range production systems, especially in organic systems where no effective anthelmintics are permitted.

Document Types: Scientific review

Animal categories: Poultry

Keywords:Environment, Living environment, Livestock farming system

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Non-infectious diseases and laying hen welfare

Peter J. Groves

Published in 2021

Scientific review of non-infectious diseases that can affect the welfare of laying hens, including grass-related crop failure, choking, diseases related to ageing, exposure to high light levels, predation, and diseases related to excessive weight or obesity.

Document Types: Scientific review

Animal categories: Poultry

Keywords:Environment, Living environment, Livestock farming system

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Nest acceptance, clutch, and oviposition traits are promising selection criteria to improve egg production in cage-free system

Lorry Becot, Nicolas Bedere ,Thierry Burlot, Jenna Coton, Pascale Le Roy

Published in 2021

Scientific paper investigating criteria for genetic selection of nesting behaviours suitable for cage-free systems for two laying hen bloodlines. It suggests that two effective potential criteria would be number of eggs laid and laying characteristics.

Document Types: Scientific paper

Animal categories: Poultry

Keywords: Enrichment, Livestock farming system

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How can the research on chicken cognition improve chicken welfare: a perspective review

V. H. B. Ferreira, V. Guesdon, L. Calandreau

Published in 2021

A review of the science linking cognition and welfare in chickens, focusing on three common welfare problems in chicken farms: unequal use of space, pecking, and unfulfilled behavioural and physiological needs.

Document Types: Scientific review

Animal categories: Poultry

Keywords:Pain, Housing, Human-animal relationships, Welfare indicators

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