Pharmacological blockade of ovulation in the ewe.
D000818:Animals; D006063:Chorionic Gonadotropin / Q000494:pharmacology*; D004971:Estrus; D005260:Female; D010060:Ovulation / Q000187:drug effects*; D010424:Pentobarbital / Q000494:pharmacology*; D011247:Pregnancy; D012756:Sheep / Q000502:physiology
D006063:Chorionic Gonadotropin; D010424:Pentobarbital