In this study, we investigated the nutritive composition in the muscle of Sinocyclocheilus grahami and S. tingi. The contents of crude protein in the fresh muscle of S. grahami and S. tingi can be described as being 21.7% and 20.6%, crude fat were 3.43% and 2.66%, and total amino acid were 19.23% and 17.67%, respectively. Essential amino acids accounted for 44.08% and 43.69% of total amino acids of S. grahami and S. tingi, respectively. The values of essential amino acid index (EAAI) of the two species were 70.00% and 65.99%, respectively, with S. grahami being better than S. tingi. Ultimately, the amino acid composition of S. grahami and S. tingi muscle tissue met the standards of the Food and Agriculture Organization of the United Nations as well as those of the World Health Organization (FAO/WHO). According to the nutritive evaluation in amino acid score (AAS), the first limited amino acids of both fish were cystine+methionine. Compared with other commercial fish, the nutrition value of the muscle of Sinocyclocheilus fish can generally be considered as being better.
该文对滇池金线鲃(Sinocyclocheilus grahami)和抚仙金线鲃(S. tingi)肌肉营养成分的分析表明：两者肌肉(鲜样)中的蛋白质含量分别为21.7%和20.6%，粗脂肪含量分别为3.43%和2.66%，氨基酸总量分别为19.23%和17.67%。其中，必需氨基酸含量分别为其各自氨基酸总量的44.08%及43.69%，必需氨基酸指数则分别为70.00%和65.99%。两者的氨基酸构成比例基本符合FAO/WHO标准，且第一限制性氨基酸均为蛋氨酸+胱氨酸。对于矿物质含量而言，滇池金线鲃K、Na含量均高于抚仙金线鲃，Zn含量低于抚仙金线鲃，而其他矿物质含量则无显著差异。该结果表明，滇池金线鲃和抚仙金线鲃肌肉均为优质食品，且前者的营养品质更优。
Keywords: Nutritional Components; Sinocyclocheilus grahami; Sinocyclocheilus tingi.