The effects of adrenaline and atropine on oxytocin-induced estrus in the goat.
Oxytocin-induced luteolysis in goats was associated with significant increases in peripheral plasma concentrations of 13,14-dihydro-15-keto-prostaglandin (PG) F(2alpha) (PGFM). This effect was not inhibited by concomitant administration of adrenaline (1 mg), although increases of PGFM were both delayed and diminished. Administration of atropine, a muscarinic cholinergic antagonist, inhibited the effect of oxytocin in three out of five goats. In these animals, increases in PGFM were inhibited.
Cooke
R G
RG
Department of Veterinary Preclinical Sciences University of Liverpool Veterinary Field Station Leahurst, Chester High Road, Neston South Wirral, Cheshire, L64 7TE, United Kingdom.
Payne
J H
JH