Optimal dietary taurine level for growth of juvenile Japanese flounder Paralichthys olivaceus.

• PARK GWANG-SIC

  Department of Aquatic Biosciences, Tokyo University of Fisheries Environmental Engineering Department of Kajima Technical Research Institute

• TAKEUCHI TOSHIO

  Department of Aquatic Biosciences, Tokyo University of Fisheries

• YOKOYAMA MASAHITO

  National Research Institute of Fisheries Science Japan International Research Center for Agriculture Sciences, Ministry of Agriculture, Forestry and Fisheries

• SEIKAI TADAHISA

  Fisheries Research Station, Faculty of Agriculture, Kyoto University Fukui Prefectural University

抄録

The requirement for taurine in juvenile Japanese flounder Paralichthys olivaceus was determined by feeding diets containing various levels of taurine and cystine. Test diets supplemented with 0.5, 1.0 and 1.5% of taurine or with 0.5, 1.0 and 1.5% of L-cystine were prepared. The basal diet contained 55% protein from white fish meal. These diets were fed to juvenile Japanese flounder with an initial mean bodyweight of 0.9 g (total length (TL) 48 mm) for 5 weeks. Approximately 1.4% taurine content in the diet was required for optimum growth of juvenile flounder. A positive linear relationship was noted between the content of taurine accumulated in the muscle, liver and brain and the level of taurine in the diet. However, there was no increased taurine content in tissues of fish fed the cystine-supplemented diet. In contrast, the fish fed control and cystine-supplemented diets showed higher contents of cystathionine in the tissues. The concentration of cystathionine in tissues rapidly decreased with an increase of taurine in the diet. It was also observed that for each of the dietary groups, a trace amount of taurine was excreted. These results suggest that the taurine content in the diet affects the sulfur amino acid metabolism of juvenile Japanese flounder, and indicate that juvenile flounder are unable to biosynthesize taurine from cystine.

収録刊行物

• Ｆｉｓｈｅｒｉｅｓ　ｓｃｉｅｎｃｅ

  Ｆｉｓｈｅｒｉｅｓ　ｓｃｉｅｎｃｅ 68 (4), 824-829, 2002

  公益社団法人 日本水産学会

キーワード

• excretion
• growth
• Japanese flounder
• juvenile
• metabolism
• taurine

詳細情報

• CRID: 1390282679404619136
• NII論文ID: 10009267716
• NII論文ID: 130003903693
• NII書誌ID: AA10993718
• DOI: 10.1046/j.1444-2906.2002.00498.x
• COI: 1:CAS:528:DC%2BD38XmvV2gu74%3D
• ISSN: 14442906
• ISSN: 09199268
• NDL書誌ID: 6268088
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I6268088
• 本文言語コード: en
• データソース種別:
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