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The separate and interactive effects of handling and environmental enrichment on the behaviour and welfare of growing pigs

By J. E. L. Day, H. A. M. Spoolder, A. Burfoot, H. L. Chamberlain, S. A. Edwards

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Abstract

The aim of this experiment was to determine the interactive effects of handling and environmental enrichment on the behaviour, performance and welfare of the growing/finishing pigs. Groups of pigs were exposed to one of eight treatments arranged in a 2 x 4 factorial design with two levels of handling (M: minimal and P: pleasant), and four levels of environmental enrichment (B: barren, C: chain, S: chopped straw, or T: destructible toy). Daily food intake was significantly affected by handling during 1-6 weeks with the P groups eating slightly more food than the M groups (1.88 vs. 1.75 kg/day; S.E.D.=0.077; P<0.05), however, this increased intake was not reflected in daily liveweight gain or food conversion ratio during the same period. The time taken for a group of pigs to exit their pen during a routine handling test was significantly affected by the handling treatments (46.2 vs. 37.8 s for P and M groups, respectively; S.E.D.=3.38; P<0.05). Behavioural time budgets, and postmortem muscle pH and stomach lesion scores were unaffected by treatment. These results suggest that pleasantly handled pigs are more difficult to move during routine husbandry tasks which may be mediated through their reduced fear of humans.

Date 2002
Publication Title Applied Animal Behaviour Science
Volume 75
Issue 3
Pages 177-192
ISBN/ISSN 0168-1591
DOI 10.1016/S0168-1591(01)00199-X
Language English
Author Address ADAS Terrington, Terrington St. Clement, King's Lynn, Norfolk PE34 4PW, UK. jon.day@adas.co.uk
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Tags
  1. Animal behavior
  2. Animal nutrition
  3. Animal physiology
  4. Animal rights
  5. Animal welfare
  6. Behavior and behavior mechanisms
  7. Environment
  8. Fat
  9. Feeding
  10. Feed intake
  11. Finishing
  12. Liveweight gains
  13. Mammals
  14. peer-reviewed
  15. Pigs
  16. Swine
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  1. peer-reviewed