title: The effect of cycle stage and plasma progesterone level on the induction of multiple ovulations in heifers.
mesh_terms: D000818:Animals; D002417:Cattle; D004971:Estrus; D005260:Female; D006064:Gonadotropins, Equine / Q000494:pharmacology*; D010053:Ovary / Q000187:drug effects; D010060:Ovulation / Q000187:drug effects*; D011247:Pregnancy; D011374:Progesterone / Q000097:blood* / Q000494:pharmacology; D013480:Superovulation / Q000187:drug effects*
chemical_list: D006064:Gonadotropins, Equine; D011374:Progesterone