Stabilité de la hiérarchie sociale chez les porcs femelles en croissance et les truies gestantes
|Advisor:||Bergeron, Renée; Meunier-Salaun, Marie-Christine|
|Abstract:||Conflicting results between methods to measure social hierarchy in pigs and between repetitions of these methods could be caused by a lack of stability in the hierarchy. Five methods have been compared for eight groups of eight growing females and eight groups of six pregnant sows: group test with one and two troughs, total trough time in the group test with one and two troughs and dyadic test. Temporal stability was compared for the five methods at weeks 1, 6 and 11 and 5, 9, 13 after mixing for growing females and sows, respectively. A higher concordance between methods and temporal stability was obtained for sows compared to growing females. These results suggest that females have a more stable hierarchy during gestation than during growth.|
|Document Type:||Mémoire de maîtrise|
|Open Access Date:||18 April 2018|
|Collection:||Thèses et mémoires|
All documents in CorpusUL are protected by Copyright Act of Canada.