| 半滑舌鳎不同家系肌肉中脂肪酸含量的分析 |
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| 引用本文： | 张永珍,杨英明,王磊,刘峰,李仰真,翟毓秀,孙伟红,陈松林.半滑舌鳎不同家系肌肉中脂肪酸含量的分析[J].中国水产科学,2016,23(2):417-424. |
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| 作者姓名： | 张永珍 杨英明 王磊 刘峰 李仰真 翟毓秀 孙伟红 陈松林 |
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| 作者单位： | 1. 中国水产科学研究院黄海水产研究所，山东青岛 266071; 上海海洋大学水产与生命学院，上海 201306;2. 中国水产科学研究院黄海水产研究所,山东青岛,266071 |
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| 基金项目： | 国家自然科学基金项目(31130057)，山东省泰山学者攀登计划专项资助 |
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| 摘 要： | 为了研究半滑舌鳎(Cynoglossus semilaevis)不同家系肌肉中脂肪酸的组成与含量,并选育出高营养品系的半滑舌鳎家系,用气相色谱法对同一养殖环境中的半滑舌鳎15个不同家系(164个样本)肌肉中的脂肪酸的组成和含量进行了检测和比较分析,同时对高EPA、DHA、EPA+DHA含量的家系进行筛选,并研究了半滑舌鳎性别与EPA、DHA含量的关系。结果表明:(1)15个家系肌肉中脂肪酸种类没有区别,但脂肪酸的组成和含量存在若干差异。其特征均为多不饱和脂肪酸(PUFA)饱和脂肪酸(SFA)单不饱和脂肪酸(MUFA)。PUFA以ω-3系脂肪酸为主,且ω-3系脂肪酸与ω-6系脂肪酸比值达到4.16~5.03,其中的2种重要ω-3系脂肪酸EPA和DHA在15个家系中均具有显著性差异,且DHA含量远大于EPA含量;筛选出了3个高EPA、DHA、EPA+DHA含量家系,分别为F13012、F13023及F13031。(2)EPA的含量与半滑舌鳎性别不具有显著性相关关系。本研究对于选育半滑舌鳎优良品种家系具有重要意义。
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| 关 键 词： | 半滑舌鳎 家系 脂肪酸 EPA DHA 性别 |
| 修稿时间： | 2016/3/14 0:00:00 |
Comparative study of the muscle fatty acid composition of different families of half smooth tongue sole (Cynoglossus semilaevis) |
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| ZHANG Yongzhen,YANG Yingming,WANG Lei,LIU Feng,LI Yangzhen,ZHAI Yuxiu,SUN Weihong,CHEN Songlin.Comparative study of the muscle fatty acid composition of different families of half smooth tongue sole (Cynoglossus semilaevis)[J].Journal of Fishery Sciences of China,2016,23(2):417-424. |
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| Authors: | ZHANG Yongzhen YANG Yingming WANG Lei LIU Feng LI Yangzhen ZHAI Yuxiu SUN Weihong CHEN Songlin |
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| Institution: | 1. Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China;2. College of Fisheries and Life Science, Shanghai Ocean University, Shanghai 201306, China;3. Laboratory for Marine Fisheries, Qingdao National |
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| Abstract: | Half smooth tongue sole (Cynoglossus semilaevis) is a large bottom-dwelling fish that lives in warm water, mainly distributed along the coast of the Bohai Sea and Yellow Sea in China. The half smooth tongue sole is large, grows fast, has a favorable flesh quality and high economic value, and is appreciated by consumers. EPA and DHA arew-3 polyunsaturated fatty acids that are appreciated for their nutritional and human health values. Pregnant and breast-feeding woman requirew-3 polyunsaturated fatty acids in their diet to promote their baby’s development. EPA and DHA lower the incidence of type II diabetes mellitus, hypertension, atherosclerosis and inflammation. Although alphalino-lenic acid may be used as a raw material to synthesize EPA and DHA, increasing age and pathological factors mean that the amount of synthesizedw-3 polyunsaturated fatty acids may be insufficient for some tissues and organs, and must be obtained from food intake. Natural aquatic products are very important sources of EPA and DHA. Therefore, it is nec-essary to determine the EPA and DHA contents to improve farmed fish quality. To study the composition and content of fatty acids in muscles of different half smooth tongue sole families and bred strains, 164 samples from 15 different half smooth tongue sole families were cultivated in the same environment. The muscle fatty acid composition and content of the 164 samples were tested using a gas chromatograph and analyzed comparatively to identify families with high con-tents of EPA, DHA and EPA+DHA, and to study the relationship between gender and the contents of EPA, DHA and EPA+DHA. There were no significant differences in patterns and types of fatty acids among the different families, while there were significant differences in fatty acid contents. The fatty acid content characteristic of all families was the same: PUFA (polyunsaturated fatty acids)>SFA (saturated acids)>MUFA (monounsaturated fatty acids). The pre-dominant PUFAs werew-3 polyunsaturated fatty acids. The ratio ofω-3/ω-6 ranged from 4.16 to 5.03. The contents of EPA and DHA were all significantly correlated among families and three high-content families, F13012, F13023 and F13031, were identified. There were no significant correlations between EPA and the gender of the fish; however, there were significant correlations between the gender of the fish and the contents of DHA and EPA+DHA. The contents of DHA and EPA+DHA in males were significantly higher than in females, which will be important for selecting and im-proving cultivated varieties. |
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| Keywords: | Cynoglossus semilaevis family fatty acid EPA DHA sex |
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