the present study was conducted to examine the effect of estradiol 17 beta ( e2 ) and luteinizing hormone ( lh ) on progesterone ( p4 ) secretion by luteal cells from early pregnant , estradiol benzoate ( eb ) -treated and hcg-treated sows and to compare the sensitivity of these cells to used exogenous hormones in vitro .
C1327616
secretion by
C0007634
the