Determination of effect on feccundity, quality and hatcing rate of eggs to addition of astaxanthin in broodstock discus fish (Symphysodon spp.) diets.

In this study, determined broodstock diets on egg quality astaksantinin added to the effect of different rates of aquarium fish industry has an important place in the world discus fish (symphysodon spp). 50 mg.kg^-1 (a50)addition astaxanthin at the diameter of the reduced egg production, however, significantly increased the rates of fertilization and the opening of 100 mg.kg^-1 (a100) addition astaxanthin decreased egg production, but egg size, fertilization and increase the rate of expansion, 150 mg.kg^-1 (a150) addition astaxanthin egg size with the efficiency of egg fertilization rate and the opening rate are found to increase in discus fish broodstock feed (p <0.05).