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치어기 넙치(Paralichthys olivaceus) 사료 내 돈모분(Pig Bristle Meal)의 어분대체 가능성 평가
김유정 ( Youjeong Kim ),신재형 ( Jaehyeong Shin ),권황원 ( Hwangwon Kwon ),이소연 ( Soyoon Lee ),김주민 ( Joo-min Kim ),김민기 ( Min-gi Kim ),김정대 ( Jeong-dae Kim ),이경준 ( Kyeong-jun Lee ) 한국수산과학회(구 한국수산학회) 2018 한국수산과학회지 Vol.51 No.2
This study was conducted to evaluate dietary hydrolyzed pig bristle meal (PBM) for juvenile olive flounder Paralichthys olivaceus. In Experiment 1 (EXP-1), six experimental diets were prepared to contain 0, 3, 6, 9, 12 and 15% PBM (designated Con, PBM3, PBM6, PBM9, PBM12 and PBM15, respectively). Triplicate groups of olive flounder (initial body weight, 8.69 g) were fed the diets to apparent satiation for 8 weeks during the optimal water temperature season (20.5±2.12℃). All PBM supplemented groups except for PBM3 showed significantly lower growth performance and feed utilization compared to the control group. The protein digestibility of PBM3, PBM6, and PBM9 diets did not significantly differ from that of the control diet. In Experiment 2, 1% mono-calcium phosphate was added into the experimental diets used in Exp-1. Triplicate groups of olive flounder (10.6 g) were fed the diets to apparent satiation for 8 weeks during the low water temperature season (12.5±1.12℃). The growth performances and feed utilization of fish fed all diets except for PBM15 diet did not significantly differ from those of the control diet. This study indicates that hydrolyzed PBM can replace fish meal by up to 12% with limiting amino acids and mono-calcium phosphate in diets for juvenile olive flounder.