Blood levels of progesterone in the ewe.
D000818:Animals; D030762:Estrous Cycle / Q000502:physiology*; D004971:Estrus; D005260:Female; D011247:Pregnancy / Q000097:blood; D011374:Progesterone / Q000097:blood*; D012756:Sheep
D011374:Progesterone
ESTRUS CYCLE/physiology; PREGNANCY/blood in; PROGESTERONE/in blood