Validation and development of a behavioural test to predict the predisposition of growing pigs to perform harmful social behaviour such as tail biting

Abstract

Harmful social behaviour is behaviour that is directed at pen mates which, if persistent, causes injury. It includes tail, ear and flank biting. The aim of this work was to determine if pigs that are predisposed to harmful social behaviour can be identified early in life using a test. In this experiment a test that measured the chewing behaviour of pigs on an artificial tail was developed from Fraser (1987), as one of a wider battery of tests under investigation in the overall project. The validity of the test was evaluated by correlating the rope directed behaviour in the test with harmful social behaviour in the home pen.