Investigating the motivation to play in lambs

Autor: Kerstin Uvnäs-Moberg, Lena Lidfors, Durga Chapagain
Rok vydání: 2014
Předmět:
Zdroj: Applied Animal Behaviour Science. 160:64-74
ISSN: 0168-1591
Popis: The aim of this study was to identify behaviours and ear postures linked to the appetitive, consummatory and post-consummatory motivational phases of play in male lambs, and to evaluate how cortisol was affected by play. Ten pairs of male lambs, Ovis aries were observed in a play arena three times a week for 4 weeks. They were kept in a holding pen for 5 min (appetitive phase) where they could look into the play arena (containing a ball, two chains and a tunnel) and thereafter released into the play arena for 20 min (consummatory phase). They returned to their home pen where they were observed for 6 min (post-consummatory phase). Direct observations were made in each location and behaviours were recorded as frequencies per min. Ear postures were recorded instantaneously every 15 s for 3 min per location. Saliva samples were taken in the 4th week for analysis of cortisol. Behaviours were analysed with a generalized linear model and cortisol with paired t-test. In the holding pen, the most common behaviours were walking, sniffing pen, standing facing play arena, standing facing alley, butting and pawing. Walking (P
Databáze: OpenAIRE