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Assessment of reference dietary amino acid pattern for juvenile red sea bream, Pagrus major
Alam, Md. S.; Teshima, S.I.; Yaniharto, D.; Sumule, O.; Ishikawa, M.; Koshio, S. (2005). Assessment of reference dietary amino acid pattern for juvenile red sea bream, Pagrus major. Aquacult. Int. 13(4): 369-379
In: Aquaculture International. Springer: London. ISSN 0967-6120, more
Peer reviewed article  

Available in Authors 

Keywords
    Amino acids; Growth; Pagrus major (Temminck & Schlegel, 1843) [WoRMS]; Marine

Authors  Top 
  • Alam, Md. S.
  • Teshima, S.I.
  • Yaniharto, D.
  • Sumule, O.
  • Ishikawa, M.
  • Koshio, S.

Abstract
    Four semi-purified diets, containing crystalline amino acids (CAAs), were fed to juvenile red sea bream, Pagrus major in order to ascertain the ideal dietary amino acid pattern for this species. A control diet containing 50% casein–gelatin as protein sources, but no CAAs were fed to the fish. The other diets contained 30% casein–gelatin and 20% CAAs. CAAs were added to diets to simulate with amino acid pattern of the red sea bream eggs protein (REP), red sea bream larvae whole body protein (RLP), red sea bream juvenile whole body protein (RJP), and brown fishmeal protein (BFP). The juveniles (average initial body weight, 1.58 ± 0.01 g) were maintained in triplicate tanks and fed twice daily for 30 days. The highest weight gain was observed in juveniles fed the RJP diet. No significant difference was observed in juveniles fed the RLP and BFP diet. Feed efficiency ratio, protein efficiency ratio and amino acid retention in the whole body were significantly (p < 0.05) affected by the simulated dietary amino acid patterns. The essential amino acid profile and A/E ratios of the whole body after the growth trial showed little difference among the dietary treatments. The results suggest that red sea bream juveniles are able to utilize high amounts of CAA in coated form. The amino acid pattern of RJP could be used as an appropriate of reference dietary amino acid for this species.

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