YY male tilapia technology, based on the genetic manipulation of sex, provides a robust, reliable method of achieving male fish. It avoids the use of hormones and maintains strain purity in genetically normal males.
A newly developed technology for producing all-male populations of freshwater prawns by temporal silencing of the androgenic gland insulin-like gene marks the first RNA interference-based biotechnology to be commercialized in the field of aquaculture.
With a hatchery system that involves collection of eggs and larvae, and hormonal sex reversal, it is possible to produce billions of monosex tilapia (all-male) fry to satisfy demand and accelerate aquaculture development.