1. Porcine ear necrosis is associated with social behaviours in weaned piglets
- Author
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Gwenaël Boulbria, Théo Nicolazo, Charlotte Teixeira-Costa, Caroline Clouard, Arnaud Lebret, Valérie Normand, Céline Chevance, Justine Jeusselin, and Élodie Merlot
- Subjects
Porcine ear necrosis ,Ear lesion ,Behaviour ,Scan sampling ,Oxidative stress ,Biomarkers ,Veterinary medicine ,SF600-1100 - Abstract
Abstract Background Porcine ear necrosis (PEN) is a worldwide health issue and its aetiology is still unclear. The aim of this study was to describe the prevalence and the severity of PEN in a commercial farm, associated with pig behaviour and health biomarkers measures. On two consecutive batches, PEN prevalence was determined at the pen level. PEN scores, blood haptoglobin concentration and oxidative status were measured on two pigs per pen (n = 48 pens) 9, 30 and 50 days (D) after arrival to the post-weaning unit. Social nosing, oral manipulation and aggression of pen mates and exploration of enrichment materials were observed on two to three pigs per pen twice a week from D9 to D50. Results At the pen level, the higher the time spent nosing pen mates, the lower the percentage of pigs affected by PEN during both the early and the late post-weaning periods (P
- Published
- 2024
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