广东海洋大学学报2024，Vol.44Issue(2)：54-61,8.DOI:10.3969/j.issn.1673-9159.2024.02.008
中华鳖5个养殖群体肌肉营养成分分析与评价
Analysis and Evaluation of Muscle Nutrient Composition in Five Cultured Populations of Pelodiscus sinensis
摘要
Abstract
[Objective]The study aims to analyze and evaluate the muscle nutritional quality of the main breeding populations of Pelodiscus sinensis in China,providing a basis for genetic improvement of quality traits of P.sinensis and the development of related formulated feeds.[Method]The general nutrient composition,amino acids,and fatty acid contents of muscle tissues from five breeding populations in Dongguan,Gaoyao,Xiaoshan,Yuncheng and Yuyao were compared.[Result](1)Significant differences(P<0.05)were observed in protein,crude fat,moisture,and ash levels between the groups,whereas the variance in total sugar content was not statistically significant(P>0.05).Among these groups,the Xiaoshan group exhibited the highest crude protein content and the lowest moisture content,while the Dongguan group had the highest crude fat content but the lowest crude protein content.The Gaoyao group displayed the highest crude ash content but the lowest crude fat content.In contrast,both the Yuncheng and Yuyao groups exhibited moderate levels of conventional nutrients.(2)The total content of essential amino acids varied from 8.65%(in Dongguan)to 10.21%(in Xiaoshan),while the total non-essential amino acids ranged from 8.61%(in Dongguan)to 10.73%(in Xiaoshan).Notably,the muscle of the P.sinensis was found to be particularly rich in glutamic acid,followed by aspartic acid.Furthermore,it's important to highlight that phenylalanine + tyrosine were identified as the first limiting amino acids.(3)The fatty acid composition in the muscle remained consistent across all five groups,with each group exhibiting the presence of 10 distinct fatty acids.The total detected fatty acids ranged from 348.41 mg/100 g(in Gaoyao)to 708.55 mg/100 g(in Dongguan).Specifically,the levels of total saturated fatty acids spanned from 133.69 mg/100 g(in Gaoyao)to 212.58 mg/100 g(in Dongguan),while total monounsaturated fatty acids varied from 86.02 mg/100 g(in Gaoyao)to 246.25 mg/100 g(in Dongguan).Additionally,total polyunsaturated fatty acids ranged from 128.70 mg/100 g(in Gaoyao)to 249.73 mg/100 g(in Dongguan).[Conclusion]The muscles of the five farmed P.sinensis groups were characterized by their high protein and low-fat content,rendering them excellent sources of dietary protein.Notably,the Xiaoshan group exhibited the most prominent high-protein,low-fat nutritional profile,while the Dongguan group may offer enhanced flavor and texture due to its higher fat and fatty acid content.关键词
中华鳖/养殖群体/肌肉营养成分/氨基酸/脂肪酸Key words
Pelodiscus sinensis/cultured populations/muscle nutritional components/amino acids/fatty acid分类
农业科技引用本文复制引用
吴聪聪,姜群,张晓君,李伟,纪利芹,刘晓莉,朱新平,陈辰..中华鳖5个养殖群体肌肉营养成分分析与评价[J].广东海洋大学学报,2024,44(2):54-61,8.基金项目
国家自然科学基金青年科学基金(3220210604) （3220210604）
以农产品为单元的广东省现代农业产业技术体系创新团队建设项目(2023KJ150) （2023KJ150）
优质速生中华鳖新品种选育及高效健康养殖技术研究(2022-SPY-00-015) （2022-SPY-00-015）
农业农村部热带亚热带水产资源利用与养殖重点实验室(中国水产科学研究院珠江水产研究所)开放课题项目(20220204) （中国水产科学研究院珠江水产研究所）
设施渔业教育部重点实验室(大连海洋大学)资助项目(202310) （大连海洋大学）
