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Effects of stage of gestation at mixing on aggression, injuries and stress in sows

By B. Stevens, G. M. Karlen, R. Morrison, H. W. Gonyou, K. L. Butler, K. J. Kerswell, P. H. Hemsworth

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Abstract

Confinement of breeding sows to stalls is a controversial welfare issue, and there is a worldwide move to house gestating sows in groups. We examined the effects of day of mixing following insemination on aggression, injuries and stress in sows. A total of 800 sows were used in this experiment and we examined the effects of mixing sows in groups within 1 to 7 days post-insemination (Group 0) or at 35 days (36-42 days) post-insemination after housing in stalls from insemination (Group 35). Groups of 85 sows were housed on concrete floors covered in rice hulls with a floor space allowance of 2.3 m 2 per sow. Mixing sows at day 35 post-insemination, instead of early post-insemination, resulted in a reduction ( P

Publication Title Applied Animal Behaviour Science
Volume 165
Pages 40-46
ISBN/ISSN 0168-1591
DOI 10.1016/j.applanim.2015.02.002
Language English
Author Address Animal Welfare Science Centre, Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Parkville, Victoria 3010, Australia.Keven.Kerswell@yahoo.com.au
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Tags
  1. Aggression
  2. Aggressive behavior
  3. Angiosperms
  4. Animal behavior
  5. Animal housing
  6. Animals
  7. Effect
  8. Farrowing
  9. Floors
  10. Flowers
  11. Grasses
  12. Hydrocortisone
  13. Insemination
  14. Litters
  15. Mammals
  16. neutrophils
  17. peer-reviewed
  18. performance traits
  19. Pigs
  20. Plants
  21. pregnancy
  22. productivity
  23. Reproduction
  24. rice
  25. sows
  26. space
  27. stalls
  28. Stress
  29. Suiformes
  30. trauma
  31. ungulates
  32. vertebrates
  33. World
Badges
  1. peer-reviewed