title: Dietary urea for dairy cattle. I. Relationship to luteal function.
mesh_terms: D000818:Animals; D002417:Cattle / Q000502:physiology*; D003338:Corpus Luteum / Q000032:analysis / Q000187:drug effects / Q000502:physiology*; D003345:Corticosterone / Q000097:blood; D004971:Estrus; D005260:Female; D005503:Food Additives; D006652:Histological Techniques; D006854:Hydrocortisone / Q000097:blood; D007986:Luteinizing Hormone / Q000097:blood; D011247:Pregnancy; D011278:Pregnanes / Q000032:analysis; D011374:Progesterone / Q000032:analysis / Q000096:biosynthesis / Q000097:blood; D013048:Specimen Handling; D014508:Urea / Q000008:administration & dosage*
chemical_list: D005503:Food Additives; D011278:Pregnanes; D011374:Progesterone; D014508:Urea; D007986:Luteinizing Hormone; D003345:Corticosterone; D006854:Hydrocortisone