Sex Reversal In Tilapia Nilotica

Investigate effect of different doses and different treatment durations of 17-methyltestone for sex reversal of oreochromis niloticus. also, hybridization of male oreochroms aureus with female oreochromis niloticus was studied to evaluate the efficiency of this method producing population all-male off - springs and compare method with sex reversal process using 17- methyltestosterone.