Effect of Chlorella-extract supplement to diet on lipid accumulation of ayu.

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  • アユの脂質蓄積に及ぼすクロレラエキス添加飼料の効果
  • アユの脂質蓄積に及ぼすクロレラエキス添加飼料の効果〔英文〕
  • アユ ノ シシツ チクセキ ニ オヨボス クロレラエキス テンカ シリョウ ノ

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Abstract

On the basis of the result that dietary Chlorella vulgaris extract depressed lipid level of ayu Plecoglossus altivelis, the effect on lipid accumulation was further determined by means of biochemical and histological methods. The Chlorella-extract supplementation (2%) to commercial diet depressed lipid levels of the muscle, liver, and intraperitoneal fat body (IPF). Not only was the lipid accumulation suppressed but also the proportion of triglycerides (TG) in the liver and IPF decreased by the supplementation. As a result, the values approached to those of wild-caught ayu.<br> Fatty acid composition was analyzed in TG and phospholipids (PL) of muscle, liver, and IPF. In spite of the same dietary lipid fed, the influence of Chlorella-extract was found in fatty acid composition of muscle TG and liver PL, but not in others. However, marked difference was observed in fatty acid composition between wild-caught ayu and the cultured two groups.<br> It was concluded that Chlorella-extract supplement suppressed lipid accumulation, and in tukrn protein was well retained in the muscle.

Journal

  • NIPPON SUISAN GAKKAISHI

    NIPPON SUISAN GAKKAISHI 53 (9), 1687-1692, 1987

    The Japanese Society of Fisheries Science

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