Matabolism of amino acids in aquatic animals. III. Indispensable amino acids for tilapia zillii.

  • MAZID M. A.
    Trainee under IDA Fellowship Program from the Department of Fisheries Technology, Bangladesh Agricultural University
  • TANAKA Yoshito
    Laboratory of Marine Biochemistry, Faculty of Fisheries, University of Kagoshima
  • KATAYAMA Teruhisa
    Laboratory of Marine Biochemistry, Faculty of Fisheries, University of Kagoshima
  • SIMPSON K. L.
    Department of Food Science and Technology, University of Rhode Island
  • CHICHESTER C. O.
    Department of Food Science and Technology, University of Rhode Island

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Other Title
  • 水産動物におけるアミノ酸代謝-III
  • 水産動物におけるアミノ酸代謝-3-ティラピア・ジリーの必須アミノ酸〔英文〕
  • スイサン ドウブツ ニ オケル アミノサン タイシャ 3 ティラピア ジリー
  • Indispensable Amino Acids for Tilapia zillii

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Abstract

The indispensable amino acids for Tilapia (Tilapia zillii) are reported. Fingerlings were fed with experimental diets deficient in a single amino acid for a period of eight weeks. Growth rates with these diets were compared with that obtained with the basal ration. According to the results, arginine, histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine were found to be essential for normal growth of Tilapia. In contrast, tyrosine, glycine, alanine, aspartic acid, cystine, glutamic acid, proline, and serine were found to be non-essential for normal growth. It was thus evident that Tilapia requires the same ten amino acids reported to be essential for other fishes. The fish showed better growth with casein diet.

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