Oestrogens in the blood of the cow.
D000818:Animals; D001681:Biological Assay; D001774:Blood Chemical Analysis; D002417:Cattle; D002623:Chemistry Techniques, Analytical; D004967:Estrogens; D004970:Estrone; D004971:Estrus; D005260:Female; D066298:In Vitro Techniques; D007601:Jugular Veins; D009929:Organ Size; D011247:Pregnancy; D011270:Pregnancy, Animal; D014599:Uterus
D004967:Estrogens; D004970:Estrone