Bird

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.

Effects of group size and floor space on the well-being of female Japanese quail

Year Published: 1994Animal Type: Bird, Other Bird

Citation: El-Homosany, Y. M., Mench, J. A., Ali, M. F. 1994. Effects of group size and floor space on the well-being of female Japanese quail. Poultry Science 73(Supplement 1), 57 (Abstract).

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.

Feather picking disorder and trichotillomania: an avian model of human psychopathology

Year Published: 1994Topics: Abnormal/Problematic BehaviorAnimal Type: Bird

Citation: Bordnick, P. S., Thyler, B. A., Ritchie, B. W. 1994. Feather picking disorder and trichotillomania: an avian model of human psychopathology. Journal of Behavior Therapy and Experimental Psychiatry 25, 186-196.

Quantifying the environmental requirements of layer hens by behavioural demand functions

Hens worked as readily for access to litter [peat] as they did for food. It was inferred that access to a litter substrate is highly valued by hens.

Year Published: 1994Animal Type: Bird, Chicken

Citation: Matthews, L. R., Temple, W., Foster, T. M. et al. 1994. Quantifying the environmental requirements of layer hens by behavioural demand functions. Applied Animal Behaviour Science 40, 91 (Abstract).

Individual variation in response to stressors in farm animals: Implication for experimenters

Several ways of reducing stress during experiments are suggested and the need for skillful and humane handling is emphasized. .. Any modification of the handling procedure aimed at reducing its stressful nature would be beneficial. .. It is concluded that...

Year Published: 1994Animal Type: Bird, Cattle, Chicken, Equine, Pig, Sheep

Citation: Manteca, X., Deag, J. M. 1994. Individual variation in response to stressors in farm animals: Implication for experimenters. Animal Welfare 3, 213-218.

An evaluation of the effect of operant feeders on welfare of hens maintained on litter

Operant feeding was evaluated as a potential method for preventing feather pecking in laying hens kept on deep litter. The data presented led to the conclusion that operant feeders should be combined with conventional feeders, and birds should be fed...

Year Published: 1994Animal Type: Bird, Chicken

Citation: Lindberg, A. C., Nicol, C. J. 1994. An evaluation of the effect of operant feeders on welfare of hens maintained on litter. Applied Animal Behaviour Science 41, 211-227.

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.

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.