title: Oophorectomy during different stages of pregnancy in the cow.
mesh_terms: D000034:Abortion, Veterinary / Q000209:etiology; D000818:Animals; D002369:Castration / Q000662:veterinary; D002417:Cattle / Q000502:physiology*; D002418:Cattle Diseases / Q000209:etiology; D004970:Estrone / Q000097:blood; D005260:Female; D007752:Obstetric Labor, Premature / Q000209:etiology / Q000662:veterinary; D010053:Ovary / Q000502:physiology; D011247:Pregnancy; D011270:Pregnancy, Animal; D011374:Progesterone / Q000097:blood; D013997:Time Factors
chemical_list: D004970:Estrone; D011374:Progesterone