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Evidence for residence-induced enhancement of aggressiveness in the non-territorial pig

By Simon P. Turner, Mark J. Farnworth, Mike Mendl, Hans W. Erhard, Alistair B. Lawrence

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Abstract

Wild pigs (Sus scrofa) are only territorial during the peri-parturient period and when young compete for access to teats. In other species, territorial defence is affected by contextual factors including resource quality. Territoriality could be stimulated in species such as pigs by artificial mixing and intensive housing. Test pigs were introduced to a novel opponent for 5min on consecutive days (days 1 and 2) in two locations (home pen of the test pig (P) or a neutral arena (A)) in a randomised block design. On day 1, animals tested in their home pen were more likely to initiate an escalated attack (proportion of pigs 0.43 vs 0.19 in the pen and neutral arena, P

Publication Title Applied Animal Behaviour Science
Volume 130
Issue 1
Pages 10-19
ISBN/ISSN 0168-1591
DOI 10.1016/j.applanim.2010.12.006
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Tags
  1. Aggression
  2. Attacks
  3. Pigs