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Influence of sympathomimetic drugs on the motility of bovine teat muscles

Published online by Cambridge University Press:  01 June 2009

G. Peeters  and
Regina de Bruycker
G. Peeters
Affiliation:
Department of Physiology of the Veterinary Faculty, University of Ghent, Belgium
Regina de Bruycker
Affiliation:
Department of Physiology of the Veterinary Faculty, University of Ghent, Belgium
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Summary

Spontaneous rhythmical contractions of the teats of living cows were recorded by a plethysmographical method. These contractions were inhibited by isoproterenol, adrenaline, isoxsuprine and phentolamine, but were activated by phenylephrine. Noradrenaline induced activation which was often followed by inhibition.

These results obtained in vivo were in agreement with responses obtained in vitro. Apparently beta sympathomimetic effects are evoked easily under in vivo conditions.

Type
Research Article
Information
Journal of Dairy Research , Volume 42 , Issue 1 , February 1975 , pp. 11 - 19
Copyright
Copyright © Proprietors of Journal of Dairy Research 1975

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References

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