GENETIC MANIPULATION / GENE BANKS IN FISH BREEDING

       GENETIC MANIPULATION – GENE BANKS

       A substantial percentage of broodstocks used in most hatcheries in the country still come from the wild, with the exception of high-volume producers who either have planned broodstock development programme or those who import broodstocks from Europe, Israel and South Africa. The act of breeding ensures species continuity and maintains certain important hereditary characters through manipulation. The most common genetic manipulation in the Nigerian fish seed production industry is the production of a hybrid from a cross between Clarias and Heterobranchus. These hybrids or strains generally exhibit better growth potential, taste and colour than their parents. Most work on the genetic manipulation of Nigerian fish species especially tilapia species are still in the laboratory phase conducted by research institutes and universities. For the country to respond to the immediate challenges of the supply of high quality fish seed, greater attention would have to the given to genetic research and establishment of gene banks for desired species.

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