LH and progesterone concentrations in heifers.
D000818:Animals; D002417:Cattle / Q000097:blood*; D005260:Female; D005298:Fertility / Q000187:drug effects*; D007986:Luteinizing Hormone / Q000097:blood*; D011247:Pregnancy; D011374:Progesterone / Q000097:blood / Q000494:pharmacology*
D011374:Progesterone; D007986:Luteinizing Hormone