Chicken

Environmental influences on the development of behaviour and their relation to welfare

Environmental enrichment can decrease fear responses to people and reduce feather pecking.

Year Published: 1989Topics: Abnormal/Problematic Behavior, Environmental EnrichmentAnimal Type: Bird, Chicken

Citation: Vestergaard, K. S. 1989. Environmental influences on the development of behaviour and their relation to welfare. In: Proceedings of the European Symposium on Poultry Welfare. Faure, J. M. , Mills, A. D. (eds), 109-122. World's Poultry Science Association, Tours, France.

Use of pen space by broiler chickens: effects of age and pen size

Chickens kept in unstructured pens, use areas near walls more than expected.

Year Published: 1990Animal Type: Bird, Chicken

Citation: Newberry, R. C., Hall, J. W. 1990. Use of pen space by broiler chickens: effects of age and pen size. Applied Animal Behaviour Science 25, 125-136.

Preferences of hens for shape and size of roosts

It is concluded that hens prefer roosts that are large [5 cm diameter] rather than small, and square or round rather than triangular in shape.

Year Published: 1990Animal Type: Bird, Chicken

Citation: Muiruri, H. K., Harrison, P. C., Gonyou, H. W. 1990. Preferences of hens for shape and size of roosts. Applied Animal Behaviour Science 27, 141-147.

Limb bone strength and movement in laying hens from different housing systems

The amount of movement possible for laying hens in battery cages was insufficient to avoid the development of osteopenia and consequent bone fragility.

Year Published: 1990Animal Type: Bird, Chicken

Citation: Knowles, T. G., Broom, D. M. 1990. Limb bone strength and movement in laying hens from different housing systems. Veterinary Record 126, 354-356.

Perch use, plumage and foot condition and bone strength in caged hens

Caging laying hens restricts movement, reduces bone strength, and affects foot conditions and plumage quality. This experiments determined whether providing perches influenced these variables. There were five treatments: front perch, rear perch, front + rear perch, long perch and control...

Year Published: 1990Animal Type: Bird, Chicken

Citation: Hughes, B. O., Appleby, M. C. 1990. Perch use, plumage and foot condition and bone strength in caged hens. Applied Animal Behaviour Science 26, 294-295 (Abstract).

Behavioural evidence for persistent pain following partial beak amputation in chicken

Partial beak amputation resulted in hyperalgesia which persisted for 6 weeks, at least 3 weeks after the beak had healed.

Year Published: 1990Animal Type: Bird, Chicken

Citation: Gentle, M. J., Waddington, D., Hunter, L. N. et al. 1990. Behavioural evidence for persistent pain following partial beak amputation in chicken. Applied Animal Behaviour Science 27, 149-157.

Farm Animal Behaviour and Welfare – Third Edition

Description of the species-typical and abnormal behavior of farm animals. Wool-pulling is generally performed by the most dominant sheep and is directed at subordinates. The sheep which receive most wool-pulling are usually those which are lowest in the social hierchy...

Year Published: 1990Animal Type: All/General, Bird, Chicken, Sheep

Citation: Fraser, A. F. , Broom, D. M. 1990. Farm Animal Behaviour and Welfare - Third Edition. Bailli?re Tindall, London, UK.

Cages modified with perches and nests for the improvement of bird welfare

Feather, foot and claw damage tended to be less in a cage equipped with a perch and a nest box than in the conventional cages.

Year Published: 1990Animal Type: Bird, Chicken

Citation: Appleby, M. C., Hughes, B. O. 1990. Cages modified with perches and nests for the improvement of bird welfare. World's Poultry Science Journal 46, 38-40.

Effects of rearing conditions on feather pecking in laying hens

Experimental results indicate that feather pecking is a from or redirected ground pecking. Litter-reared birds had significantly less feather damage [suggesting that they engaged in less feather pecking] than goups reared on wire floor. The addition of grain positively affected...

Year Published: 1991Animal Type: Bird, Chicken

Citation: Blokhuis, H. J. 1991. Effects of rearing conditions on feather pecking in laying hens. Applied Animal Behaviour Science 30, 186 (Abstract).

Effect of space allowance on behavioural restriction and synchrony in hens

Frequency of preening and walking increased linearly with increased space; cage-pecking, bill-wiping, vacuum dust-bathing and scratching also tended to increase. Vigilance, jostling, inactivity and eating showed a decrease. .. Jostling indicated that birds were attempting to feed in synchrony, but...

Year Published: 1991Animal Type: Bird, Chicken

Citation: Jenner, T. D., Appleby, M. C. 1991. Effect of space allowance on behavioural restriction and synchrony in hens. Applied Animal Behaviour Science 31, 292-293 (Abstract).