New technologies for increasing the production of ornamental fish

In recent years, world trade in ornamental fish has grown significantly. Southeast Asia industry use this potential to export these species to other countries. Considering the importance of ornamental fish, attempting to produce more marketable fish is one of the goals of ornamental fish breeders. In this regard, new methods such as coloring for producing the best fish variety, sex change aimed at increasing the efficiency and amount of production in aquaculture activities, and cross-breeding, one of the most effective methods for introducing species New to increase production, increase survival rate, resistance to diseases. In this paper, these methods has been investigated.