短期間飼育によるセタシジミの高品質化  [in Japanese] Improving the quality of <i>Corbicula sandai</i> by rearing in a short period  [in Japanese]

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Abstract

<p> 短期間でセタシジミを高品質化する目的で,給餌条件を検討した。その結果,5日間のブドウ糖または可溶性デンプン給餌により体内グリコーゲン量が増加すること,24時間のユーグレナ給餌によりそれを体内に取り込ませることが可能であること,24時間のグリシン,アラニン及びタウリン給餌により体内遊離アミノ酸濃度を増加できること,高浸透圧下でのグリシン給餌によりグリシンの取り込みを促進できることが確認された。以上の結果から,これらの技術を用い,短期間蓄養による二枚貝の高品質化の可能性が示唆された。</p>

<p> To improve the quality of <i>Corbicula sandai</i> in a short period, the increment in glycogen content by various feeds, and the uptakes of microalgae and amino acids by administration of the feeds in breeding water, were validated. When glucose (1 g/L) or soluble starch (3 g/L) was fed for 5 days, glycogen content was significantly increased, suggesting that soluble sugar sources could be available for effective synthesis of glycogen. Feeding microalgae (2.0×10<sup>4</sup> cells/mL of <i>Euglena</i> sp.) for 24 h led to an increase in chlorophyll content of the mid-gut gland, suggesting that microalgae were effectively incorporated in the bivalves. Rearing in amino acid solutions (24 mM of glycine, alanine, taurine and glutamic acid) for 24 h increased some of these contents (glycine, alanine and taurine), suggesting that glycine, alanine and taurine were effectively incorporated in the bivalves. When rearing in glycine solution (24 mM) for 24 h under hyperosmotic stress (3‰ salinity), glycine content was significantly increased compared to rearing without osmotic stress. The findings suggest that the quality of bivalves could be improved in a short period by increasing glycogen content, applying nutriments included in microalgae and enhancing free amino acid contents as taste components or functional ingredients.</p>

Journal

  • NIPPON SUISAN GAKKAISHI

    NIPPON SUISAN GAKKAISHI 84(1), 81-86, 2018

    The Japanese Society of Fisheries Science

Codes

  • NII Article ID (NAID)
    130006315621
  • NII NACSIS-CAT ID (NCID)
    AN00193422
  • Text Lang
    JPN
  • ISSN
    0021-5392
  • NDL Article ID
    028839935
  • NDL Call No.
    Z18-345
  • Data Source
    NDL  J-STAGE 
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