The onset of pain related behaviours following partial beak amputation in the chicken

  title={The onset of pain related behaviours following partial beak amputation in the chicken},
  author={M. Gentle and L. N. Hunter and D. Waddington},
  journal={Neuroscience Letters},
  • M. Gentle, L. N. Hunter, D. Waddington
  • Published 1991
  • Biology, Medicine
  • Neuroscience Letters
  • The number of pecks delivered by birds to an attractive visual stimulus was measured before and again 6, 26 and 32 h after partial beak amputation. There was a significant reduction in the number of pecks by birds 26 h after amputation but not at 6 h after. This reduction was considered to be a quantitative measure of pain related guarding behaviour. The results indicated the presence of a pain-free period immediately following amputation which may last in some birds for as long as 26 h. 
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