The effects of indoor vs outdoor housing on pig welfare
نویسنده
چکیده
It was observed that when compared with indoor pigs, outdoor piglets spent significantly more time exploring and feeding and less time belly-nosing, showing oro-nasal or agonistic behaviour towards their pen mates. Belly-nosing and oro-nasal behaviours generally are considered aggressive rather than natural (Petersen, 1994). Höetzel et al. (2004) proposed that the decrease in unnatural behaviour was not simply due to increased spatial distance between piglets but due to a more interesting, complex environment available to explore, removing frustration and associated behaviours.
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