饲料研究2023，Vol.46Issue(23)：56-61,6.DOI:10.13557/j.cnki.issn1002-2813.2023.23.011
不同地理大鲵子三代养殖群体肌肉营养成分比较
Comparison of muscle nutritional components of the third generation of different geographical Andrias davidianus groups
摘要
Abstract
The study was to evaluate the nutritional value of the muscle of Andrias davidianus of the third generation from Daning river system in Chongqing and the Hanjiang River system in Shaanxi.The nutritional components of the muscle of Andrias davidianus populations from the Daning River population in Chongqing(group C)and the Hanshui population in Hanzhong(group S)were determined and analysed by conventional biochemical analysis methods,and the quality was evaluated.The results showed that the crude fat and water content of muscle in the group C were significantly lower than those in the group S(P＜0.05),and the crude protein and crude ash content were not significantly different(P＞0.05).The eighteen amino acids were found in the muscles of both populations,with glutamic acid(Glu)being most abundant.The first limiting amino acid was tryptophan,while the essential amino acid composition conforms to FAO/WHO standards.The essential amino acid index of the group C was 97.29%,which was higher than that of the group S(85.82%).The total muscle amino acids and the total essential amino acids in the group C were significantly higher than those in the group S(P＜0.05),and there was no significant difference in delicious amino acids(P＞0.05).The fifteen fatty acids were detected in the muscles of the group S,with two more fatty acids,including pearl lipoic acid(C17∶0)and cis-11-eicosatetraenoic acid(C20∶1),than in the group C.The monounsaturated fatty acids,polyunsaturated fatty acids,eicosapentaenoic acid + docosahexaenoic acid were significantly higher in the group S than in the group C(P＜0.05).In both populations,the macronutrient K and the trace element Zn had the highest levels of eight minerals in the muscles.The study indicates that the third generation of Andrias davidianus has high nutritional value and tasty meat.The quality of protein and trace minerals in the muscle of the group C is better than that of the group S,and the quality of fatty acids and macrominerals in the muscle of the group S is better than that of the group C.关键词
大鲵/肌肉/营养成分/品质评价Key words
Andrias davidianus/muscle/nutritional components/quality evaluation分类
水产学引用本文复制引用
蒲德成,郑吉澍,汪政希,翟旭亮,余米,李佩原,李脉,刘世仙..不同地理大鲵子三代养殖群体肌肉营养成分比较[J].饲料研究,2023,46(23):56-61,6.基金项目
重庆市农业科学院市级财政青年专项基金项目(项目编号:cqaas2023sjczqn036) （项目编号:cqaas2023sjczqn036）
重庆市农业科技创新项目(项目编号:渝农发[2022]154号) （项目编号:渝农发[2022]154号）
重庆市自然科学资金面上项目(项目编号:CSTB2023NSCQ-MSX1083) （项目编号:CSTB2023NSCQ-MSX1083）
重庆市生态渔产业技术体系(项目编号:CQMAITS202315) （项目编号:CQMAITS202315）
