induction of fertile estrus in 14 anestrous bitches was attempted , using pituitary gonadotropins given by intramuscular injection in 3 treatment regimens : as a single dose of 10-mg follicle stimulating hormone ( fsh ; 5 bitches ) , as multiple doses of fsh ( 1 , 2 , 4 , 8 , 16 mg ) given to 4 bitches on days 1 and 2 , 3 and 4 , 5 and 6 , 7 and 8 , and 9 and 10 , and as multiple doses of combined fsh and luteinizing hormone ( lh ;
C0018066
pituitary gonadotropins
C0023607
luteinizing hormone