Tail-in-mouth Behaviour Among Weaner Pigs in Relation to Age, Gender and Group Composition Regarding Gender
- 1 March 2003
- journal article
- research article
- Published by Taylor & Francis Ltd in Acta Agriculturae Scandinavica, Section A — Animal Science
- Vol. 53 (1), 29-34
- https://doi.org/10.1080/09064700310002017
Abstract
Male pigs are significantly more often found to be tail-bitten at slaughter than are females. Age is also thought to be a crucial factor in relation to the ontogeny of tail-biting among slaughter pigs. Tail-in-mouth behaviour (TIM) among young pigs is probably the precursor of the damaging tail-biting in older pigs. Hence, this experiment aimed to elucidate the frequency of TIM in relation to gender, age and group composition regarding gender in weaner pigs. Pigs were reared in groups of 24 until 5 weeks of age and then divided into three groups: (A) eight female pigs, (B) eight castrated male pigs and (C) four female and four castrated male pigs (mixed pen). Observations was performed through video-recording 12 h per day, 1 day per week, for 4 consecutive weeks. The number of TIM events (counts) as well as the identity of the performer and the receiver of TIM were recorded. The results showed that the level of TIM activity in the single-gender pens was significantly lower than in the mixed pen (PP<0.01).Keywords
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