Chicken

The effect of environmental enrichment during rearing on fear reactions and depopulation trauma in adult caged hens

Environmental enrichment [plastic bottled, rattles, human voice by radio] during rearing was identified as an important factor affecting fear levels and risk of injury in adult birds.

Year Published: 1993Animal Type: Bird, Chicken

Citation: Reed, H. J., Wilkins, L. J., Austin, S. D. et al. 1993. The effect of environmental enrichment during rearing on fear reactions and depopulation trauma in adult caged hens. Applied Animal Behaviour Science 36, 39-46.

Effect of age and presence of perches during rearing on tonic immobility fear reactions of broiler breeder pullets

Fearfulness was attenuated by the provision of perches during rearing.

Year Published: 1994Animal Type: Bird, Chicken

Citation: Brake, J., Keeley, T. P. 1994. Effect of age and presence of perches during rearing on tonic immobility fear reactions of broiler breeder pullets. Poultry Science 73, 1470-1474.

The effects of modifying the amount of human contact on behavioural, physiological and production responses of laying hens

Increasing the amount of human contact reduced the level of fear of humans ... and decreased corticosterone response to handling, with consequent positive effects on production.

Year Published: 1994Animal Type: Bird, Chicken

Citation: Barnett, J. L., Hemsworth, P. H., Hennessy, D. P. et al. 1994. The effects of modifying the amount of human contact on behavioural, physiological and production responses of laying hens. Applied Animal Behaviour Science 41, 87-100.

Nesting, dust bathing and perching by laying hens in cages: Effects of design on behaviour and welfare

Feather, foot and claw damage all tended to be less in the experimental [equipped with perch, dust bath and nest box] than in the conventional cages.Abstract published in Journal of Animal Science 70 (Supplement 1), 172, 1992; Appleby MC; Behaviour-environment...

Year Published: 1993Animal Type: Bird, Chicken

Citation: Appleby, M. C., Smith, S. F., Hughes, B. O. 1993. Nesting, dust bathing and perching by laying hens in cages: Effects of design on behaviour and welfare. British Poultry Science 34, 835-847.

An enrichment object that reduces aggressiveness and mortality in caged laying hens

The enrichment devices (colored key rings) significantly reduced aggressive head-pecking behavior and significantly decreased the mortality rate.

Year Published: 1994Topics: Environmental EnrichmentAnimal Type: Bird, Chicken

Citation: Gvaryahu, G., Ararat, E., Asaf, E. et al. 1994. An enrichment object that reduces aggressiveness and mortality in caged laying hens. Psychology and Behavior 55, 313-316.

Choice tests for space in groups of laying hens

Chickens were tested for their preference for [barren, unstructured] space. In terms of welfare it is usually assumed that the larger the cage, the better the welfare. However, according to present results this is not the case for some groups...

Year Published: 1994Topics: HousingAnimal Type: Bird, Chicken

Citation: Faure, J. M. 1994. Choice tests for space in groups of laying hens. Applied Animal Behaviour Science 39, 89-94.

Passive socialization to humans: Effects on tonic immobility in chickens (Gallus gallus)

Regular gentle handling is a reliable method of reducing fear responses to humans.

Year Published: 1994Animal Type: Bird, Chicken

Citation: Eddy, T. J., Gallup, G. G. 1994. Passive socialization to humans: Effects on tonic immobility in chickens (Gallus gallus). Animal Learning and Behavior 22, 325-331.

Regular handling and the domestic chick’s fear of human beings: Generalisation of response

The present results suggest that chickens which have been habituated to one person via regular handling will also show reduced fear of other people wearing either similar of different types of clothing.

Year Published: 1994Animal Type: Bird, Chicken

Citation: Jones, R. B. 1994. Regular handling and the domestic chick?s fear of human beings: Generalisation of response. Applied Animal Behaviour Science 42, 129-143.

The Accommodation of Laboratory Animals in Accordance with Animal Welfare Requirements: Laying Hens

Berlin Workshop' recommendations for the adequate housing of laying hens address the following issues: (1) Should laying hens be kept in pens or in cages? (2) Should laying hens be kept in groups or individually? If in groups, what should...

Year Published: 1994Animal Type: Bird, Chicken

Citation: Scharmann, W., Oester, H., Blokhuis, H. J. et al. 1994. Laying Hens. In: The Accommodation of Laboratory Animals in Accordance With Animal Welfare Requirements. Proceedings of an International Workshop Held at the Bundesgesundheitsamt, Berlin [The Berlin Workshop]. O'Donoghue, P. N. (ed), 53-58. Bundesministerium f?r Ern?hrung, Landwirtschaft und Forsten, Bonn, Germany.

Farm animal welfare

The goal of this paper is to expand upon the general principle of environmental enrichment for farm animals and to present some ideas for enrichment based on current research.

Year Published: 1994Topics: Environmental EnrichmentAnimal Type: Cattle, Chicken, Equine, Goat, Pig, Sheep

Citation: Newberry, R. C. 1994. Farm animal welfare. In: CCAC 1994 Western Regional Workshop. Canadian Council on Animal Care [CCAC] 21-28. Canadian Council on Animal Care, Ottawa, Canada.