中国农业科技导报2024，Vol.26Issue(5)：223-233,11.DOI:10.13304/j.nykjdb.2023.0352
2种饲料投喂下美洲鲥幼鱼肌肉营养成分分析及评价
Analysis and Evaluation of Nutritional Composition in Muscle of Juvenile Alosa sapidissima Fed with Two Diets
摘要
Abstract
In order to evaluate the nutritional quality in the muscles of juvenile Alosa sapidissima cultured by normal diet(normal diet group)and green diet(green diet group),nutritional compositions were determined and compared by biochemical analysis methods.The results showed that crude fat in muscle of normal group(7.84%)was very significantly higher than that of green group(5.05%),while the moisture of normal group(68.87%)was very significantly lower than that of green group(71.98%),and the crude protein of normal group(16.93%)was significantly lower than that of green group(17.54%).The total essential amino acids/total amino acids and total essential amino acids/total non-essential amino acids in muscle of normal group and green group had no significant difference,and they were all high-guality proteins.The delicious amino acid,bitterness amino acid,and sourness amino acid in muscle of green group were significantly higher than that of normal group.The sweetness amino acid in muscle of green group was very significantly higher than that of normal group.The branched chain amino acid and ratio of branched chain and aromatic amino acid in muscle of green group were significantly higher than that of normal group.According to nutrition evaluation in amino acids score and chemical score,the first limited amino acid was tryptophan(Trp)in 2 groups.The essential amino acid index of normal group(73.58)was higher than that of green group(71.00).The eicosa pentenoic acid(EPA)and docose hexaenoie acid(DHA)of normal group were very significantly higher than that of green group.The total unsaturated fatty acid、n-3 polyunsaturated fatty acid(Σn-3)、n-6 polyunsaturated fatty acid(Σn-3)、polyunsaturated fatty acid/saturated fatty acid and Σn-3/Σn-6 of normal group were very significantly higher than that of green group,while saturated fatty acid/unsaturated fatty acid of green group were very significantly higher than that of normal group.Above results demonstrated that both of normal group and green group were prominent protein.Increasing the levels of Trp,EPA and DHA in green feed helped enhance the nutritional quality of the muscle tissue in Alosa sapidissima.关键词
美洲鲥/饲料/肌肉/营养成分/氨基酸/脂肪酸Key words
Alosa sapidissima/diet/muscle/nutrient composition/amino acids/fatty acids分类
农业科技引用本文复制引用
蒋飞,施永海,徐嘉波,严银龙,刘永士,袁新程..2种饲料投喂下美洲鲥幼鱼肌肉营养成分分析及评价[J].中国农业科技导报,2024,26(5):223-233,11.基金项目
上海市科委"科技创新行动计划"农业领域项目(21N51901100). （21N51901100）
