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首页> 外文期刊>Aquaculture Research >Lipid content and fatty acid composition in female American shad, Alosa sapidissima, at different stages of ovarian development under reared conditions
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Lipid content and fatty acid composition in female American shad, Alosa sapidissima, at different stages of ovarian development under reared conditions

机译：脂质含量和脂肪酸组成在女性美国鲥鱼，Alosa Sapidissima，在饲养条件下的卵巢发育的不同阶段

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摘要

The fatty acid accumulation in broodstock influences the fecundity of spawners as well as egg quality. A comprehensive understanding of the lipid and fatty acid changes in broodstock during the reproductive period can increase our knowledge of the nutritional requirements in artificial breeding programs. The study assessed the lipid and fatty acid compositions of muscle, liver and ovary of American shad at different stages of reproductive development under reared conditions. The results indicated that there were significant differences in lipid content among ovary, liver and muscle. Mean total lipid levels in ovary, liver and muscle were 15.92%-10.87%, 13.62%-6.89%, 10.39%-6.11% respectively. During the development season, the total lipid content in muscle in stages V and VI were significantly lower than those in stages II and III. The total lipid content in liver in stages IV, V and VI was significantly lower than in stages II and III, whereas the total lipid content in the ovary increased significantly as the gonad developed and reached its highest value at stage V. From II to VI stage, the liver content of docosahexaenoic acid (DHA) decreased and the ovarian content of DHA increased, whereas the content of eicosapentaenoic acid (EPA) remained relatively constant. The content of C16:0 and C18:1n-9 decreased in muscle and liver, but significantly increased in ovary. It is therefore suggested that the lipids were preferentially transferred from muscle and liver to ovary beginning in stage IV as the gonad matured. At stage IV, the lipid transfer accelerated, and saturated and unsaturated fatty acids, such as C16:0, C18:1n-9, DHA, EPA and arachidonic acid, were selectively transferred to and conserved in ovaries.
机译：Broodstock中的脂肪酸积聚影响了产卵的繁殖力以及鸡蛋质量。在生殖期间，对黄蜂酸碱和脂肪酸变化的全面了解，可以提高人工育种计划中营养需求的了解。该研究评估了在饲养条件下生殖开发的不同阶段的美国曲折肌肉，肝脏和卵巢的脂质和脂肪酸组成。结果表明，卵巢，肝脏和肌肉中的脂质含量存在显着差异。平均卵巢，肝脏和肌肉的总脂质水平分别为15.92％-10.87％，分别为13.62％-6.89％，分别为10.39％-6.11％。在发育季节期间，阶段V和VI中肌肉的总脂质含量显着低于阶段II和III中的脂肪含量。阶段IV，V和VI中肝脏的总脂质含量显着低于阶段II和III，而卵巢中的总脂质含量显着增加，因为加拿达在第五阶段开发并达到其最高值。来自II至VI阶段，二十二碳六烯酸（DHA）的肝脏含量下降，DHA的卵巢含量增加，而己二辛烯酸（EPA）的含量保持相对恒定。 C16：0和C18：1N-9的含量在肌肉和肝脏中减少，但在卵巢中显着增加。因此，建议脂质优先从肌肉和肝脏转移到阶段IV的卵巢，因为Gonad成熟。在第四阶段，脂质转移促进，饱和和不饱和脂肪酸，如C16：0，C18：1N-9，DHA，EPA和arachidonic酸，在卵巢中选择性地转移并保守。

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  • 来源
    《Aquaculture Research》 |2019年第2期|共10页
  • 作者

    Gao Xiao-Qiang; Fei Fan; Liu Zhi-Feng; Guan Chang-Tao; Huang Bin; Liu Bao-liang; Jia Yu-dong; Guo Zheng-Long; Wang Yao-Hui; Hong Lei;

  • 作者单位

    Chinese Acad Fishery Sci Yellow Sea Fisheries Res Inst Qingdao Key Lab Marine Fish Breeding &

    Biotechnol Minist Agr Key Lab Sustainable Dev Marine Fisheri Qingdao Peoples R China;

    Dalian Ocean Univ Aquacultural Engn R&

    D Team Dalian Peoples R China;

    Chinese Acad Fishery Sci Yellow Sea Fisheries Res Inst Qingdao Key Lab Marine Fish Breeding &

    Biotechnol Minist Agr Key Lab Sustainable Dev Marine Fisheri Qingdao Peoples R China;

    Chinese Acad Fishery Sci Yellow Sea Fisheries Res Inst Qingdao Key Lab Marine Fish Breeding &

    Biotechnol Minist Agr Key Lab Sustainable Dev Marine Fisheri Qingdao Peoples R China;

    Chinese Acad Fishery Sci Yellow Sea Fisheries Res Inst Qingdao Key Lab Marine Fish Breeding &

    Biotechnol Minist Agr Key Lab Sustainable Dev Marine Fisheri Qingdao Peoples R China;

    Chinese Acad Fishery Sci Yellow Sea Fisheries Res Inst Qingdao Key Lab Marine Fish Breeding &

    Biotechnol Minist Agr Key Lab Sustainable Dev Marine Fisheri Qingdao Peoples R China;

    Chinese Acad Fishery Sci Yellow Sea Fisheries Res Inst Qingdao Key Lab Marine Fish Breeding &

    Biotechnol Minist Agr Key Lab Sustainable Dev Marine Fisheri Qingdao Peoples R China;

    Haian Aquat Prod Technol Promot Dept Nantong Peoples R China;

    Haian Aquat Prod Technol Promot Dept Nantong Peoples R China;

    Chinese Acad Fishery Sci Yellow Sea Fisheries Res Inst Qingdao Key Lab Marine Fish Breeding &

    Biotechnol Minist Agr Key Lab Sustainable Dev Marine Fisheri Qingdao Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 水产、渔业;
  • 关键词

    American shad Alosa sapidissima; fatty acid; lipid; liver; muscle; ovary;

    机译：美国鲥鱼萨佩达西岛;脂肪酸;脂质;肝脏;肌肉;卵巢;

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