Abstract
This study was conducted to estimate dietary utilization of enzyme treated fish meal (EFM) on juvenile pacific bluefin tuna (PBT) Thunuus orientalis. In first experiment (EXP 1), the pacific bluefin tuna (initial body weight 2.36g) was randomly disposed two experimental tanks. The fish were fed EFM containing 31.9% of enzyme treated fish meal and sand lance (SL) for 15 days, respectively. Weight gain (WG) was showed lower in EFM than SL. But survival and protein efficiency ratio (PER) were higher in EFM than SL. Feed conversion ratio (FCR) of EFT lower than SL. In second experiment (EXP 2) was conducted to retest growth performance between EFM and SL. The high PER and survival were obtained in EFM than SL, and FCR of EFM was lower than that of SL. EFM are suitable dietary protein source in diet of juvenile PBT considering FCR, PER and survival in feeding trial.
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