hypothalamic regulation of luteinizing hormone ( lh ) secretion and ovarian function were investigated in beef heifers by infusing lh-releasing hormone ( lhrh ) in a pulsatile manner ( 1 microgram/ml ; 1 ml during 1 min every h ) into the external jugular vein of 10 hypophysial stalk-transected ( hst ) animals .
C0020663
hypothalamic
C0023610
lhrh