عنوان مقاله [English]
This study was inducted to elucidate the effect of different steroid hormones on simultaneous maturation of oocytes in Caspian salmon. Oocytes were incubated with 1, 10, 100 and 1000 ng/ml of testosterone, progesterone and 17 β stradiol, in vitro, for 40 hrs. GVBD was considered as hormones effectiveness. 17β estradiol was effective just in 1000 ng/ml and testosterone had no positive effect on maturatin procces. In this study progesterone was the most effective hormone in maturation.