title: Effect of human chorionic gonadotropin on pregnancy rate of heifers, when used under field conditions.
mesh_terms: D000818:Animals; D002417:Cattle / Q000502:physiology*; D002715:Chlormadinone Acetate / Q000494:pharmacology; D006063:Chorionic Gonadotropin / Q000008:administration & dosage* / Q000494:pharmacology*; D004971:Estrus / Q000187:drug effects; D005260:Female; D006801:Humans; D007279:Injections, Subcutaneous; D007315:Insemination, Artificial / Q000662:veterinary; D011247:Pregnancy; D011270:Pregnancy, Animal / Q000187:drug effects*; D012820:Silage; D003313:Zea mays
chemical_list: D006063:Chorionic Gonadotropin; D002715:Chlormadinone Acetate