Milking-induced release of endogenous prolactin in cows infused with exogenous prolactin.
D000818:Animals; D002417:Cattle / Q000502:physiology*; D005260:Female; D007275:Injections, Intravenous; D007774:Lactation; D011247:Pregnancy; D011388:Prolactin / Q000008:administration & dosage / Q000037:antagonists & inhibitors / Q000097:blood / Q000494:pharmacology
D011388:Prolactin