when measured either at the age of five days or six weeks , gonadotropin treatment [ a combination of follicle stimulating hormone ( fsh ) and luteinizing hormone ( lh ) ] , administered twice daily for three days after the hatching , led to an increase in the above-mentioned parameter and to a shift in the cell ratio towards the control value .
C0018061
gonadotropin
C0733758
follicle stimulating hormone