Retrospective exploratory evaluation of individual pigs’ behaviour involved in tail biting during rearing and fattening

Karen Kauselmann, E Tobias Krause, Hansjörg Schrade and Lars Schrader

PLOS ONE, 2025, vol. 20, issue 1, 1-23

Abstract: Tail biting is one of the biggest welfare problems in pigs. However, depending on the individuals involved (e.g., tail biter/victim), pigs seem to change their behaviour prior to tail biting events, which raises the possibility of early detection and thus prediction and prevention of tail biting. In this retrospective explorative study, we used datasets from four different studies with 9 trials of rearing (4 pens/trial with 24 pigs/pen) and fattening (8 pens/trial with 12 pigs/pen) that focused on the exploration behaviour of undocked pigs towards plant-based enrichment materials. From this dataset, we identified 8 pens from rearing (n = 192 pigs) and 6 pens from fattening (n = 72 pigs) in which individual tail biters were identified. From this dataset, we investigated whether any a priori behavioural changes in exploration or feeding could be identified with respect to tail biting. Furthermore, the effects of weight parameters from suckling to fattening were examined. Using linear mixed effects models, we found that exploration duration was linked to days prior to tail biting in rearing, depending on CatPig (category of pigs: biter, victim, neutral pig) (P = 0.001), in fattening independent of CatPig (P

Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0316044

DOI: 10.1371/journal.pone.0316044

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