title: The fertility of heifers inseminated at predetermined intervals following treatment with MGA and HCG to control ovulation.
mesh_terms: D000818:Animals; D002417:Cattle / Q000502:physiology*; D006063:Chorionic Gonadotropin / Q000494:pharmacology*; D004971:Estrus / Q000187:drug effects; D005260:Female; D005298:Fertility / Q000187:drug effects*; D005306:Fertilization / Q000187:drug effects; D007315:Insemination, Artificial / Q000662:veterinary; D008552:Melengestrol Acetate / Q000494:pharmacology; D010060:Ovulation / Q000187:drug effects; D011245:Pregnadienes / Q000494:pharmacology*; D011247:Pregnancy; D011372:Progestins / Q000494:pharmacology*
chemical_list: D006063:Chorionic Gonadotropin; D011245:Pregnadienes; D011372:Progestins; D008552:Melengestrol Acetate