Combined use of milk progesterone profiles, clinical examination and oestrus observation for the study of fertility in the post-partum period of dairy cows.
D000818:Animals; D002417:Cattle / Q000502:physiology*; D004971:Estrus; D005260:Female; D005298:Fertility; D008892:Milk / Q000032:analysis*; D049590:Postpartum Period; D011247:Pregnancy; D011374:Progesterone / Q000032:analysis*
D011374:Progesterone