Chicken

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.

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.

Foot and skeletal disorders in laying hens

Flat-surfaced, mushroom-shaped, wooden perches reduce keel damage when compared with traditional, wide, rectangular wooden perches [which cause less damage than those with circular cross-section].

Year Published: 1994Animal Type: Bird, Chicken

Citation: Tauson, R., Abrahamsson, P. 1994. Foot and skeletal disorders in laying hens. Acta Agriculturae Scandinavia, Section A - Animal Science 44, 110-119.

Effects of regular handling and exposure to an outside area on subsequent fearfulness and dispersal in domestic hens

Repeated exposure of immature birds to an outside area [enriched environment] reduced fear levels to a greater degree than did regular handling alone. These results are in accord with studies which suggest that previous regular exposure to a complex environment...

Year Published: 1995Animal Type: Bird, Chicken

Citation: Grigor, P. N., Hughes, B. O., Appleby, M. C. 1995. Effects of regular handling and exposure to an outside area on subsequent fearfulness and dispersal in domestic hens. Applied Animal Behaviour Science 44, 47-55.

Endogenous analgesia in the chicken

When chickens were placed in pairs into pens containing a deep layer of wood shavings, they either showed complete analgesia or significantly less pain-related behavioral reactions to a joint inflammation produced by urate injection. When tested in the barren cage,...

Year Published: 1995Animal Type: Bird, Chicken

Citation: Gentle, M. J., Corr, S. A. 1995. Endogenous analgesia in the chicken. Neuroscience Letters 201, 211-215.