A review of the role and importance of essential fatty acids in the feeding of ornamental fish

Ornamental fish farming, like other aquaculture productions, it depends on the quality and quantity of egg production, hatching, fecundity and survival of the larvae. In general, every step of aquaculture, followed by nutritional goals. Most of these studies are in the stages of larval growth. Because the highest costs are imposed on aquaculture and the most critical biological period of ornamental fish is at this stage. One of the ways to make baby boys more resistant and quality, Raising the ability to produce larval fish to higher weights by formulating the diet and determining the food needs is the same. Meanwhile, the shortage of essential fatty acids in the ornamental fish diet leads to symptoms that often accompany the decline in growth and mortality in the population. Lack of essential fatty acids in the diet causes physiological, morphological and behavioral changes in various ornamental fish, which significantly reduces their performance during the cultural period. Therefore, it is necessary to carry out applied studies with the aim of examining the actual needs for essential fatty acids in the commercial production of ornamental fish of freshwater and marine.