'Freedom from hunger'and preventing obesity: the animal welfare implications of reducing food quantity or quality

RB D'Eath, BJ Tolkamp, I Kyriazakis, AB Lawrence - Animal Behaviour, 2009 - Elsevier
In animals, including humans, free access to high-quality (generally energy-dense) food can
result in obesity, leading to physiological and health problems. Consequently, various …

Abnormal repetitive behaviours in captive birds: a Tinbergian review

E Mellor, B Brilot, S Collins - Applied Animal Behaviour Science, 2018 - Elsevier
Abnormal repetitive behaviours (ARBs) are associated with past, or present, welfare
problems and are common elements of the behavioural repertoire of some captive animals …

Breeding for better welfare: genetic goals for broiler chickens and their parents

MS Dawkins, R Layton - Animal Welfare, 2012 - cambridge.org
Genetics is key to the improvement of welfare in broiler chickens at both juvenile and adult
(breeder) stages but progress is hampered currently by the seemingly conflicting demands …

The effect of stocking density on stress reaction in broiler chickens during summer

MK Tuerkyilmaz - Turkish Journal of Veterinary & Animal …, 2008 - journals.tubitak.gov.tr
The aim of this study was to investigate the effect of stocking density on the heterophil to
lymphocyte ratio (H: L), blood corticosterone concentration, immune response, and some …

Major welfare issues in broiler breeders

IC De Jong, D Guémené - World's Poultry Science Journal, 2011 - cambridge.org
Under current practices, broiler parent stock (broiler breeders) encounter several welfare
problems, such as feed restriction and injury during mating. Intensive selection for …

International approaches to the welfare of meat chickens

A Robins, CJC Phillips - World's Poultry Science Journal, 2011 - cambridge.org
Welfare issues and approaches are compared in the following review, for all major meat
chicken producing countries. In certain countries, such as the United States and Australia …

Proportion of insoluble fibre in the diet affects behaviour and hunger in broiler breeders growing at similar rates

BL Nielsen, K Thodberg, J Malmkvist, S Steenfeldt - Animal, 2011 - cambridge.org
With a view to alleviate the feeling of hunger in broiler breeders, different types of fibre
sources were used in high-fibre diets to increase feed quantity while limiting growth to …

[HTML][HTML] The effects of feed restriction, time of day, and time since feeding on behavioral and physiological indicators of hunger in broiler breeder hens

LM Dixon, IC Dunn, S Brocklehurst, L Baker, T Boswell… - Poultry Science, 2022 - Elsevier
Broiler breeder chickens are commercially feed restricted to slow their growth and improve
their health and production, however, there is research demonstrating that this leads to …

Effects of qualitative feed restriction during rearing on the performance of broiler breeders during rearing and lay

BJ Tolkamp, V Sandilands, I Kyriazakis - Poultry Science, 2005 - Elsevier
To prevent health and fertility problems associated with excessive weight gain, broiler
breeders are severely feed restricted during rearing, which may affect welfare. We compared …

[HTML][HTML] The effect of alternative feeding strategies for broiler breeder pullets: 1. Welfare and performance during rearing

A Arrazola, E Mosco, TM Widowski, MT Guerin… - Poultry science, 2019 - Elsevier
Broiler breeders have impaired reproductive performance when fed to satiety but they can
achieve an optimal hatching egg production under feed restriction. Feed restriction is a …