References
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- SANFORD, J. (1992) Guidelines for detection and assessment of pain and distress in experimental animals: Initiatives and experience in the United Kingdom. In: Animal Pain (Ed. by C.E. Short & A. Van Poznak), pp 515–524. London: Churchill Livingstone.
- Kitchell, R. L. (1987) Problems in defining pain and peripheral mechanisms of pain. Journal of the American Veterinary Medicine Association 191: 1195–1199.
- MATTHEWS, N. S. (1992) Pain Control in the Horse: A Review of Equine Pain Models. In: Animal Pain (Ed. by C.E. Short & A. Van Poznak), pp 403–407. London, U.K.: Churchill Livingstone.
- ARCHER, N., JOHNSTON, A. M. and KHALID, M. (2004) Differences in the acute pain responses of two breeds of lamb following castration and tail docking with the rubber ring method. Animal Welfare 13: 135–141.
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Further reading
- BATESON, M. and MARTIN, P. (2007) Measuring behaviour. An introductory guide. Cambridge University Press, U.K.
- McGREEVY, P. (2004) Equine behaviour: a guide for veterinarians and equine scientists. Saunders.