, Volume 42, Issue 2, pp 198–199 | Cite as

Andorphins implicated in stereotypies of tethred sows

  • G. M. Cronin
  • P. R. Wiepkema
  • J. M. van Ree
Short Communications Ethology, Ecology, Natural Product Chemistry


The study presents evidence that the stereotypies of tethered sows are associated with the release of endorphins. This is the first indication that stereotypies may be an effective coping strategy.

Key words

Endorphins stereotypies tethered sows animal welfare 


  1. 1.
    Sambraus, H. H., Int. J. Stud. Anim. Prob.2 (1981), 245.Google Scholar
  2. 2.
    Stolba, A., Baker, N., and Wood-Gush, D. G. M., Behaviour83 (1983) 157.Google Scholar
  3. 3.
    Cronin, G. M., and Wiepkema, P. R., Ann. Rech. Vét.15 (1984) 263.Google Scholar
  4. 4.
    Ewbank, R., Proc. 1st World Congr. Ethology Applied to Zootechnology, p. 499. Madrid 1978.Google Scholar
  5. 5.
    Wiepkema, P. R., Cronin, G. M., and Van Ree, J. M., Proc. Int. Congr. Applied Ethology in Farm Animals, p. 93. Kiel 1984.Google Scholar
  6. 6.
    Holzapfel, M., Z. Tierpsychol.2 (1938) 46.Google Scholar
  7. 7.
    Morris, D., Symp. Soc. Lond.13 (1964) 99.Google Scholar
  8. 8.
    Wiepkema, P. R., Broom, D. M., Duncan, I. J. H., and Van Putten, G., CEC-report, Autumn 1983.Google Scholar
  9. 9.
    Ödberg, F. O., Proc. 1st World Congr. Ethology Applied to Zootechnology, p. 475. Madrid 1978.Google Scholar
  10. 10.
    Cronin, G. M., Wiepkema, P. R., and Hofstede, G. J., Proc. Int. Congr. Applied Ethology in Farm Animals, p. 97. Kiel 1984.Google Scholar
  11. 11.
    Cronin, G. M., Ph. D. Thesis, Agric. University, Wageningen 1985.Google Scholar
  12. 12.
    Guillemin, R., Vargo, T., Rossier, J., Minick, S., Ling, N., Rivier, C., Vale, W., and Bloom, F., Science197 (1977) 1367.PubMedGoogle Scholar
  13. 13.
    Van Ree, J. M., Smyth, D. G., and Colpaert, F. C., Life Sci.24 (1979) 495.CrossRefPubMedGoogle Scholar
  14. 14.
    Van Ree, J. M., and De Wied, D., in: The Neurobiology of Opiate Reward Processes, p. 109. Eds. Smith and Lane. Elsevier Biomed. Press, Amsterdam 1983.Google Scholar
  15. 15.
    Lewis, M. E., Mishkin, M., Bragin, E., Brown, R. M., Pert, C. B., and Pert, A., Science211 (1981) 1166.PubMedGoogle Scholar
  16. 16.
    Rossier, J., French, E. D., Rivier, C., Ling, N., Guillemin, R., and Bloom, F. E., Nature270 (1977) 618.PubMedGoogle Scholar

Copyright information

© Birkhäuser Verlag Basel 1986

Authors and Affiliations

  • G. M. Cronin
    • 1
    • 2
  • P. R. Wiepkema
    • 1
    • 2
  • J. M. van Ree
    • 1
    • 2
  1. 1.Department of Animal Husbandry, EthologyAgricultural UniversityWageningen(The Netherlands)
  2. 2.Rudolf Magnus Intitute for Pharmacology, Medical FacultyUniversity of UtrechtUtrecht(The Netherlands)

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