In vitro effects of steroid hormones on inducing GVBD in caspian salmon (Salmo trutta caspius) oocytes

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.