title: Screening of the reproductive performance of a dairy herd by means of 4 sequential progesterone analyses.
mesh_terms: D000818:Animals; D002417:Cattle / Q000502:physiology*; D004971:Estrus; D005260:Female; D008892:Milk / Q000032:analysis*; D011247:Pregnancy; D011270:Pregnancy, Animal; D011374:Progesterone / Q000032:analysis*; D011863:Radioimmunoassay; D012098:Reproduction
chemical_list: D011374:Progesterone