Hormone levels in peripheral plasma of the Afrikaner cow II Progesterone and total unconjugated oestrogen levels during late ge
Progesterone and total unconjugated oestrogen concentrations in the peripheral blood of 4 Afrikaner cows during late gestation and parturition were determined by RIA. From l2-18 days prepartum, progerone levels ranged .from 8.4 to 13,0 ng/ml and subsequently declined to 3,7-8,2…