摘要
为了解人工养殖光唇裂腹鱼Schizothorax lissolabiatus和灰裂腹鱼S.griseus的生物学指数和营养价值,采集同一养殖环境条件下体质量接近的2龄光唇裂腹鱼和灰裂腹鱼各5尾。用常规生化分析方法对其生物学指数和肌肉营养品质进行分析、比较。结果:(1)2种裂腹鱼的生物学指数之间差异无统计学意义(P>0.05);(2)光唇裂腹鱼和灰裂腹鱼肌肉中的粗蛋白含量分别为19.36%、19.09%;(3)2种裂腹鱼肌肉中的高度不饱和脂肪酸均以二十二碳六烯酸相对含量最高;光唇裂腹鱼肌肉多不饱和脂肪酸含量、多不饱和脂肪酸/饱和脂肪酸比值显著高于灰裂腹鱼,差异有统计学意义(P<0.05);(4)光唇裂腹鱼肌肉的丙氨酸含量显著高于灰裂腹鱼,差异有统计学意义(P<0.05)。光唇裂腹鱼肌肉的必需氨基酸评分及其平均值均高于灰裂腹鱼。2龄人工养殖光唇裂腹鱼的肌肉价值优于灰裂腹鱼。
To understand the biological indices and muscle nutritional value of the artificial farming Schizothorax lissolabiatus and S.griseus,5 individuals of 2-year-old S.lissolabiatus and S.griseus with similar body weights were collected under the same breeding environment.The biological indices and muscle nutritional quality were analyzed and compared by using conventional biochemical analysis methods.Results:(1)There were no significant differences in the biological indices between two Schizothorax fish species(P>0.05).(2)The protein content in the muscles of the S.lissolabiatus and the S.griseus were 19.36%and 19.09%,respectively.(3)The highly unsaturated fatty acid content in the muscles of both Schizothorax fish species was highest in docosahexaenoic acid.The content of polyunsaturated fatty acids and the ratio of polyunsaturated fatty acids to saturated fatty acids in the muscles of S.lissolabiatus were significantly higher than those in S.griseus,with statistical significance(P<0.05).(4)The content of alanine in the muscles of S.lissolabiatus was significantly higher than that in S.giseus,with statistical significance(P<0.05).The essential amino acid score and its average value in the muscles of S.lissolabiatus were higher than those in S.giseus.In conclusion,the muscle nutritional value of 2-year-old artificial farming S.lissolabiatusis better than that of S.giseus.
作者
钟传艳
姜雨杰
陈荔
苏子峰
龙晓文
Zhong Chuanyan;Jiang Yujie;Chen Li;Su Zifeng;Long Xiaowen(College of Agriculture and Biology Science,Dali University,Dali,Yunnan 671003,China;Dali Plateau Aquatic Resources Breeding Farm,Dali,Yunnan 671003,China)
出处
《大理大学学报》
2023年第12期50-57,共8页
Journal of Dali University
基金
大理大学博士科研启动费项目(KYBS2021064)
云南省基础研究计划项目(202101AT070028)。
关键词
人工养殖
光唇裂腹鱼
灰裂腹鱼
生物学指数
营养价值
artificial farming
Schizothorax lissolabiatus
Schizothorax griseus
biological indices
nutritional value
