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Relationship between behavioural response to amphetamine and propensity to develop stereotypic behaviour in pigs

Published online by Cambridge University Press:  24 November 2017

E M C Terlouw ,
A B Lawrence  and
A W lllius
E M C Terlouw
Affiliation:
The Scottish Agricultural College Edinburgh West Mains Road, Edinburgh EH9 3JG
A B Lawrence
Affiliation:
The Scottish Agricultural College Edinburgh West Mains Road, Edinburgh EH9 3JG
A W lllius
Affiliation:
Institute of Cell, Animal and Population Biology University of Edinburgh, West Mains Road, Edinburgh EH9 3JN
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Extract

The dopamine systems In the brain are strongly involved in motor activity. Pharmacological stimulation of brain dopamine systems with dopamine agonists initially results in increased levels of motor activity that with increasing doses become more stereotyped in form. It has been suggested that in tethered sows, stereotypies develop because chronic environmental stress produces activation of brain dopamine systems (Dantzer, 1986). Furthermore, differences In the sensitivity of brain dopamine systems may form the basis of the large individual variation found in level of stereotypies (Segal and Kuczenski, 1987). Manipulation of the chain forms the major category of stereotypic behaviour during long term tethering. In addition, many pigs develop excessive drinking (Terlouw et al., in press). The present study investigated whether female nulliparous pigs differed in their response to a standard dose of amphetamine and whether this response is correlated to the amount of chain activity and drinking that developed during subsequent long term tethering.

Type
Pig behaviour
Information
Proceedings of the British Society of Animal Production (1972) , Volume 1991 , March 1991 , pp. 58
Copyright
Copyright © The British Society of Animal Production 1991

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References

Dantzer, R. 1986. Behavioural, physiological and functional aspects of stereotyped behaviour: a review and a re-interpretation. J Anim Scl 62: 1776–1786 CrossRefGoogle Scholar
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Segal, S and Kuczenski, R. 1987. Individual differences in responsiveness to single and repeated amphetamine administration: behavioural characteristics and neurochemical correlates. J Pharm Exp Therap 242: 917–926.Google Scholar
Terlouw, E M C, Lawrence, A B and lllius, A W. Influences of feeding level and physical restriction on development of stereotypies in sows. Anim Behav, in press.Google Scholar