WEEK-11-Sex Reversal and Breeding
Monosex or sterile populations of fish are desirable in aquaculture for a variety of reasons. Monosexing can be an effective method to limit or control reproduction.
•The male grows faster in some species and the female faster in other species . In this case, monosex culture of the faster-growing sex can increase production, and sexual dimorphism for growth occurs in most cultured fish (Dunham, 1990).
•For some species, monosex females also have superior flesh quality and fry survival.
•Sex reversal and breeding to produce monosex male populations is effective for increasing growth and production in other species.
•Sex differences may also exist for flesh quality and carcass yield. Sexual maturity is also closely linked with both carcass yield and growth rate: as the fish become sexually mature, growth rate slows and carcass yield decreases.
