Effects of arterial infusions of adrenalin and acetylcholine on luteal secretion of progesterone and oxytocin in goats.
The effects of close intra-arterial infusion of acetylcholine and adrenalin on ovarian secretion of progesterone and oxytocin were examined on Day 10 of the estrous cycle in goats (estrus = Day 0). Acetylcholine (15 micrograms/min) was without effect, but adrenalin (10 micrograms/min) significantly (P < 0.001) raised both progesterone and oxytocin concentrations in ovarian vein plasma. These results show that luteal hormone secretion is enhanced in the goat by beta-adrenergic stimulation and suggest that, as in the sheep and cow, there may be neuroendocrine involvement in the regulation of caprine luteal function.
Cooke
R G
RG
Department of Veterinary Preclinical Sciences, University of Liverpool, United Kingdom.
Payne
J H
JH
D000109:Acetylcholine / Q000008:administration & dosage / Q000494:pharmacology*; D000818:Animals; D003338:Corpus Luteum / Q000187:drug effects / Q000378:metabolism*; D004837:Epinephrine / Q000008:administration & dosage / Q000494:pharmacology*; D004971:Estrus; D005260:Female; D006041:Goats / Q000378:metabolism*; D007261:Infusions, Intra-Arterial / Q000662:veterinary; D010121:Oxytocin / Q000378:metabolism*; D011374:Progesterone / Q000378:metabolism*
D011374:Progesterone; D010121:Oxytocin; D000109:Acetylcholine; D004837:Epinephrine