Tail posture predicts tail biting outbreaks at pen level in weaner pigs
作者： Helle Pelant Lahrmann , Christian Fink Hansen , Rick D’Eath , Marie Erika Busch , Björn Forkman
DOI: 10.1016/J.APPLANIM.2017.12.006
关键词:
摘要: Abstract Detecting a tail biting outbreak early is essential to reduce the risk of pigs getting severe damage. A few previous studies suggest that posture and behavioural differences can predict an upcoming outbreak. The aim present study was therefore investigate if in behaviour could be detected at pen level between pens (T-pens) control (C-pens). included 2301 undocked weaner 74 (mean 31.1 pigs/pen; SD 1.5). Tails were scored three times weekly (wound freshness, wound severity length) 07:00 h–14:00 h from weaning until An (day 0) occurred when least four had damage, regardless freshness. On average 7.6 (SD 4.3) damaged (scratches + wound) T-pens on day 0. Tail (activity, eating, explorative, mate directed behaviour) recorded matched C-pens using scan sampling every half hour 0800–1100 h 1700–2000 h -3, -2 -1 prior T-pens. Further, changes measure for use under commercial conditions, by direct observation outside pen. live observations carried out just before scoring each video results showed more hanging/tucked tails than recording (P 8 with 4–5 (P
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