Endogenous opioids are involved in abnormal stereotyped behaviour of tethered sows

G.M. Cronin; P.R. Wiepkema; J.M. van Ree

doi:10.1016/0143-4179(85)90114-3

Endogenous opioids are involved in abnormal stereotyped behaviour of tethered sows

G.M. Cronin, P.R. Wiepkema, J.M. van Ree

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Abstract

Tethered sows continuously performed stereotypies during a substantial part of the day time. A single subcutaneous injection with naloxone significantly decreased the profound stereotypies, while explorative behaviours of pigs were not affected by naloxone. In addition a long-term effect of naloxone was noticed. It is suggested that performing the seemingly purposeless stereotypies may function as an effective strategy in order to cope with the conflict-inducing housing conditions. The present data implicate endorphins in this strategy. The involvement of endorphins in the stereotypies of the sows may be related to the calming, rewarding and dependency-inducing effects of the endorphins.

Original language	English
Pages (from-to)	527-530
Journal	Neuropeptides
Volume	6
Issue number	6
DOIs	https://doi.org/10.1016/0143-4179(85)90114-3
Publication status	Published - 1985

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title = "Endogenous opioids are involved in abnormal stereotyped behaviour of tethered sows",

abstract = "Tethered sows continuously performed stereotypies during a substantial part of the day time. A single subcutaneous injection with naloxone significantly decreased the profound stereotypies, while explorative behaviours of pigs were not affected by naloxone. In addition a long-term effect of naloxone was noticed. It is suggested that performing the seemingly purposeless stereotypies may function as an effective strategy in order to cope with the conflict-inducing housing conditions. The present data implicate endorphins in this strategy. The involvement of endorphins in the stereotypies of the sows may be related to the calming, rewarding and dependency-inducing effects of the endorphins.",

author = "G.M. Cronin and P.R. Wiepkema and {van Ree}, J.M.",

year = "1985",

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T1 - Endogenous opioids are involved in abnormal stereotyped behaviour of tethered sows

AU - Cronin, G.M.

AU - Wiepkema, P.R.

AU - van Ree, J.M.

PY - 1985

Y1 - 1985

N2 - Tethered sows continuously performed stereotypies during a substantial part of the day time. A single subcutaneous injection with naloxone significantly decreased the profound stereotypies, while explorative behaviours of pigs were not affected by naloxone. In addition a long-term effect of naloxone was noticed. It is suggested that performing the seemingly purposeless stereotypies may function as an effective strategy in order to cope with the conflict-inducing housing conditions. The present data implicate endorphins in this strategy. The involvement of endorphins in the stereotypies of the sows may be related to the calming, rewarding and dependency-inducing effects of the endorphins.

AB - Tethered sows continuously performed stereotypies during a substantial part of the day time. A single subcutaneous injection with naloxone significantly decreased the profound stereotypies, while explorative behaviours of pigs were not affected by naloxone. In addition a long-term effect of naloxone was noticed. It is suggested that performing the seemingly purposeless stereotypies may function as an effective strategy in order to cope with the conflict-inducing housing conditions. The present data implicate endorphins in this strategy. The involvement of endorphins in the stereotypies of the sows may be related to the calming, rewarding and dependency-inducing effects of the endorphins.

U2 - 10.1016/0143-4179(85)90114-3

DO - 10.1016/0143-4179(85)90114-3

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VL - 6

SP - 527

EP - 530

JO - Neuropeptides

JF - Neuropeptides

IS - 6

ER -

Endogenous opioids are involved in abnormal stereotyped behaviour of tethered sows

Abstract

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