in order to compare the hormonal environment during the treatment to that during pregnancy , the concentrations of total estrogens ( te ) , progesterone ( p4 ) , glucocorticoids ( g ) and prolactin ( prl ) in the plasma were characterized in non-pregnant , intact ewes induced into lactation with subcutaneous injections of estradiol-17 beta ( e2-beta ) and p4 for 7 consecutive days ( days 1 to 7 ) .
C0032961
pregnancy
C0033308
progesterone