title: Serum progesterone and luteinizing hormone in dairy cattle fed varying levels of crude protein.
mesh_terms: D000818:Animals; D002417:Cattle / Q000378:metabolism*; D004044:Dietary Proteins / Q000008:administration & dosage* / Q000378:metabolism; D004971:Estrus; D005260:Female; D007986:Luteinizing Hormone / Q000097:blood*; D011247:Pregnancy; D011374:Progesterone / Q000097:blood*
chemical_list: D004044:Dietary Proteins; D011374:Progesterone; D007986:Luteinizing Hormone