title: Plasma ovarian hormone levels and fertility in beef heifers treated with melengestrol acetate (MGA).
mesh_terms: D000818:Animals; D002417:Cattle / Q000502:physiology*; D004967:Estrogens / Q000097:blood*; D004971:Estrus / Q000187:drug effects; D005260:Female; D005298:Fertility / Q000187:drug effects*; D005306:Fertilization; D008552:Melengestrol Acetate / Q000008:administration & dosage / Q000494:pharmacology; D010053:Ovary / Q000502:physiology; D011245:Pregnadienes / Q000494:pharmacology*; D011247:Pregnancy; D011374:Progesterone / Q000097:blood*; D011372:Progestins / Q000494:pharmacology*
chemical_list: D004967:Estrogens; D011245:Pregnadienes; D011372:Progestins; D011374:Progesterone; D008552:Melengestrol Acetate