For studying the effect of LHRH-A 2 hormone on the induction of final maturation and ovulation of Persian sturgeon, 71 matured females and 20 matured males were used. Five groups of breeders were injected with sturgeon pituitary gland hormone (50 mg per fish) and LHRH-A 2 in dosages of 3.5, 7, 8 and 10 lg kg -1 for females and 3 and 5 lg kg -1 for males. Results showed that LHRH-A 2 successfully induced final maturation and ovulation in females, and there was no significant difference between five groups of breeders in ovulation proportion, fertilization rate, survival rate of incubation, survival of yolk-sac absorption period and active feeding period of larvae. It can be concluded that the LHRH-A 2 is a proper alternative for pituitary gland hormone in artificial propagation of Persian sturgeon.