title: Progesterone levels in peripheral plasma of Rocky Mountain bighorn ewes (Ovis canadensis) during the estrous cycle and pregnancy.
mesh_terms: D000818:Animals; D004971:Estrus; D005260:Female; D011247:Pregnancy; D011270:Pregnancy, Animal; D011374:Progesterone / Q000097:blood*; D012756:Sheep / Q000097:blood*; D013045:Species Specificity
chemical_list: D011374:Progesterone