Abstract:In this study, the contents of nutritious composition were measured in muscles of diploid and gynogenetic diploid of juvenile Paralichthys olivaceus. The content of moisture, crude protein, lipid and crude ash was analyzed. The composition and content of amino acids and fatty acids were examined. The differences in muscles of male and female diploids, and gynogenetic diploid were studied by statistical analysis. The results showed that the content of crude protein in the muscles of P. olivaceus was at a high level, achieving 21.3%. The content of glutamic acid, which is one of important tasty amnio acids, is highest among that of containing 18 amnio acids, accounted for 2.9% of total amino acids. Polyunsaturated fatty acids were sufficient in P. olivaceus muscles. There were no significant differences in muscle nutrient content either between female and male individuals (P>0.05) or between diploid and gynogenetic diploid individuals (P>0.05). In conclusion, the muscle of P. olivaceus is full of nutrition. It is revealed that the gynogenetic diploid individuals have equally absolute and balanced nutrient level with the diploid individuals. Gynogenesis has no bad effect on fish muscle nutrient.
