Attraction to blood as a factor in tail-biting by pigs

@article{Fraser1987AttractionTB,
  title={Attraction to blood as a factor in tail-biting by pigs},
  author={D. Fraser},
  journal={Applied Animal Behaviour Science},
  year={1987},
  volume={17},
  pages={61-68}
}
  • D. Fraser
  • Published 1987
  • Medicine
  • Applied Animal Behaviour Science
Abstract Canvas models, about the size of a pig's tail, were impregnated with pigs' blood or left plain, and were presented to pigs for 12 days in a 2-choice preference test. The pigs showed large, consistent, individual differences in response: some pigs chewed the models continuously while others chewed only slightly; some chewed much more on the blood-covered model, while others showed no preference. On average, the pigs chewed considerably more on the blood-covered model than on the plain… Expand
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