Techniques to regulate sex ratio and breeding in Tilapia

Abstract

Available information on the advantages and limitations of the techniques of hybridization and hoemone treatment for the production of all male tilapias is summarized. The critical minimum dose to ensure 100% sex reversal is determined for Oreochromis mossambicus. The possibility of producing triploid and tetraploid O, mossambicus through heat shock treatment of fertilized eggs is described.