Intersucking in dairy cattle - review and questionnaire. (Special Issue: Behaviour and welfare of cattle)
Contributor(s):: Lidfors, L., Isberg, L.
Intersucking is an abnormal behaviour in dairy heifers and cows, and it is defined by one animal sucking the teat of another animal with the intention of sucking milk. The aim of this paper is to review earlier studies on intersucking in dairy cattle and to present results from a questionnaire...
The development of aggressive behavior in male broiler chicks: a comparison with laying-type males and the effect of feed restriction
Contributor(s):: Mench, J. A.
Experiments were designed firstly to investigate whether selection for growth has modulated the development of aggressive behaviour in male broiler chicks, and secondly to determine the influence of feed restriction on aggression. In the first experiment, broiler males were compared with males...
Feeding pigs: divergence of behavioural and physiological requirements
Contributor(s):: Lawrence, A. B., Appleby, M. C., Macleod, H. A.
In experiments in which hunger in Large WhitexLandrace boars was measured by conditioning them to press a panel to receive 7-g rewards of food, it was concluded that restricting pigs to low food allowances results in a high level of hunger throughout the day. It is suggested that commercial food...