The appearance of oestrone sulphate in the peripheral plasma of the pig early in pregnancy.
Detectable concentrations of oestrone sulphate were present in 50% of the plasma samples collected from pregnant animals by Day 17. No oestrone sulphate was detected in plasma from cyclic nonpregnant pigs.
D000818:Animals; D004970:Estrone / Q000097:blood*; D005260:Female; D011247:Pregnancy; D011270:Pregnancy, Animal; D013552:Swine / Q000097:blood*
D004970:Estrone