Gynogenesis: An effective way of controlling fish population and increasing profit in aquaculture

Abstract

Gynogenesis is a gene manipulation technology to produce all female fish. Brood stock of Clarias gariepinus were obtained from a fish farm in Mosogar, Delta State, Nigeria. The milt was irradiated with Ultra Violet (UV) light to inactivate the male chromosomes. The fertilized eggs were then cold shocked. One way analysis of variance was use to analyze the data on the haploids, triploids and diploids. Hatchability of fertilized eggs indicated lower hatchability and survival rates in the diploids and the triploids. Analysis of variance showed significant difference in the growth of the diploid and triploid. There were also higher growth rates in the triploid than the diploids.