title: A comparison of progesterone levels during early pregnancy from normal sheep and sheep induced to breed by hormone treatment.
mesh_terms: D000818:Animals; D004971:Estrus / Q000187:drug effects; D005260:Female; D005298:Fertility / Q000187:drug effects*; D006728:Hormones / Q000494:pharmacology; D007774:Lactation; D011247:Pregnancy; D011270:Pregnancy, Animal; D011374:Progesterone / Q000097:blood*; D012621:Seasons; D012756:Sheep / Q000502:physiology*
chemical_list: D006728:Hormones; D011374:Progesterone