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首页> 外文期刊>水産增殖 >Effects of taurine-enriched early live food (rotifer and Artemia nauplii) on the survival and growth of walleye pollock larvae
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Effects of taurine-enriched early live food (rotifer and Artemia nauplii) on the survival and growth of walleye pollock larvae

机译：牛磺酸早期活食品（Rotifer和Artemia Nauplii）对Walleye Collock幼虫的生存和生长的影响

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摘要

Rearing experiments under controlled environmental conditions further our understanding of the population dynamics of walleye pollock Gadus chalcogrammus by supplementing the biological information collected in field surveys. However, walleye pollockrearing techniques, from eggs to juveniles, still require improvement. In the present study, we investigated the effects of taurine enrichment of early live food on the survival and growth of walleye pollock larvae. Larvae were fed with unenriched (control) and taurine-enriched rotifers (taurine supplementation: 400 mg/m/) from the first feeding until22 or 23 days post hatching (DPH) in Experiment1，and with unenriched (control) and taurine-enriched rotifers and Artemia nauplii (taurine supplementation:800 mg/m/) until55 DPH in Experiment 2. In both experiments, the survival and growth of the larvae reared on taurine-enriched food were improved, when compared with the control larvae. The growth rates and taurine content of the supplemented larvae werecomparable to those of wild-caught larvae. Our findings suggested that taurine enrichment of early live food effectively improved the rearing performance of walleye pollock larvae. Such improvements may facilitate the supply of experimental fish for future laboratory studies on the biological characteristics of the larval and juvenile stages of this species.
机译：受控环境条件下的饲养实验进一步了解Walleye Poldock Gadus Chalcograngmus的人口动态，通过补充现场调查中收集的生物学信息。然而，从鸡蛋到少年的鸡蛋，仍需要改善。在本研究中，我们调查了牛磺酸富集早期活食物对Walleye Pollock幼虫的生存和生长的影响。从第一次进料（DPH）在实验1中，用未联合（对照）和牛磺酸富集的转子（牛磺酸补充剂：400mg / m /）喂食幼虫（牛磺酸补充剂：400mg / m /），并用未成分（对照）和牛磺酸富含牛磺酸的转子和Artemia Nauplii（牛磺酸补充剂：800 mg / m /）直至实验2。在实验中，与对照幼虫相比，改善了在牛磺酸富含食物上饲养的幼虫的存活率和生长。补充幼虫的生长率和牛磺酸含量与野生捕获的幼虫有关。我们的研究结果表明，早期活食品的牛磺酸富集有效改善了Walleye Pollock幼虫的饲养表现。这种改进可以促进对未来实验室研究的实验鱼类对本物种幼虫和幼年阶段的生物学特征的研究。

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  • 来源
    《水産增殖》 |2019年第2期|共14页
  • 作者

    Toru Nakagawa; Hiroyuki Matsunari; Takashi Yokota;

  • 作者单位

    Akkeshi Laboratory Hokkaido National Fisheries Research Institute Japan Fisheries Research and Education Agency Chikushikoi Akkeshi Hokkaido 088-1108 Japan;

    Akkeshi Laboratory Hokkaido National Fisheries Research Institute Japan Fisheries Research and Education Agency Chikushikoi Akkeshi Hokkaido 088-1108 Japan;

    Akkeshi Laboratory Hokkaido National Fisheries Research Institute Japan Fisheries Research and Education Agency Chikushikoi Akkeshi Hokkaido 088-1108 Japan;

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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

    Gadus chalcogrammus; Artemia; Rotifer; Taurine;

    机译：多年的Chalocathmus;蒿;轮虫;牛磺酸;

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