title: Pregnancy diagnosis in cows and heifers by determination of oestradiol-17 alpha in faeces.
mesh_terms: D000818:Animals; D002417:Cattle / Q000502:physiology*; D004958:Estradiol / Q000032:analysis*; D004970:Estrone / Q000032:analysis; D005243:Feces / Q000032:analysis*; D005260:Female; D011247:Pregnancy; D011258:Pregnancy Tests / Q000662:veterinary*
chemical_list: D004970:Estrone; D004958:Estradiol