In this study, the nutritional components (proximate compositions, amino acids compositions, fatty acids compositions, and mineral elements contents) of the gonad, mantle, muscle, and liver in Notarchus leachii cirrosus Stimpson were analyzed and evaluated through national standard methods, and the purpose was to provide a reference for its resource development and utilization. Results showed that the contents of moisture, crude protein, crude lipid, and ash in different tissues of N. leachii cirrosus were 59.16% to 81.01%, 42.03% to 67.27%, 4.85% to 9.88%, and 17.17% to 28.52%, respectively, and the highest value was in mantle, muscle, gonad, and liver, respectively. 17 amino acids were detected in all 4 tissues, and the contents of total amino acids, essential amino acids, and delicious amino acids were 14.02% to 60.36%, 4.48% to 13.58%, and 5.84% to 29.55%, respectively, with the highest values all found in the muscle. The first limiting amino acid was Met + Cys in all 4 tissues. The highest essential amino acid index was 82.91 in the gonad. A total of 16 fatty acids were detected in the 4 tissues, and polyunsaturated fatty acid content was 26.95% to 63.00%, with the highest value in the muscle, and the highest value of a sum of eicosapentaenoic acid and docosahexaenoic acid content was in the gonad. All 4 tissues were rich in various mineral elements. In conclusion, the 4 tissues in N. leachii cirrosus are rich in nutrients, especially the gonads and muscle, which have great prospects for development and utilization.
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