to investigate the pituitary response to exogenous growth hormone releasing factor ( grf ) during pregnancy , pregnant ( from day 7 to day 16 ) and non-pregnant rats were cannulated through a femoral vein , then hpgrf-44 ( 1.0 microgram ) or saline was administered intravenously under anaesthesia with pentobarbital sodium .
C0032961
pregnancy
C0700349
pentobarbital