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치어기 넙치(Paralichthys olivaceus)에 있어서 어분 대체원으로써 탈피대두박을 이용하여 생산한 오징어 간분의 평가
김영철 ( Young Chul Kim ),배승수 ( Sung Su Bae ),이준호 ( Jun Ho Lee ),박건현 ( Gun Hyun Park ),이정열 ( Jeong Yeol Lee ),배승철 ( Sung Chul C. Bai ) 한국수산학회 2009 한국수산과학회지 Vol.42 No.3
This study was conducted to determine the proper inclusion levels of squid liver powder (SLP) and dehulled soybean meal (DHSM) as a fish meal (FM) replacement in the diets for olive flounders. All the experimental diets were formulated to be isonitrogenous (50% crude protein, CP) and isocaloric (17.1 kJ energy g-1 diet). Four diet were formulation of FM with SLP (DHSM) were tested at 0, 25, 50, 75% (SLP(DHSM)0, SLP(DHSM)25, SLP(DHSM)50 and SLP(DHSM)75, respectively). Triplicate groups of 12 fish with an average body weight of 5.56±0.1g(mean±S.D.) were fed one of three experimental diets for 7 weeks. Weight gain (WG) and the specific growth rate(SGR) of fish fed SLP(DHSM)0 and SLP(DHSM)25 diets were significantly higher than those of fish fed SLP(DHSM)50 and SLP(DHSM)75 diets (P<0.05). Also, WG and SGR of fish fed SLP(DHSM)50 had significantly higher WG and SGR than that of fish fed SLP(DHSM)75 (P<0.05). The feed efficiency (FE) and protein efficiency ratio (PER) of fish fed SLP(DHSM)0 and SLP(DHSM)25 were significantly higher than those fed SLP(DHSM)50 and SLP(DHSM)75 (P<0.05). The whole-body crude lipid content of fish SLP(DHSM)75 was significantly higher than that of fish fed SLP(DHSM)50 (P<0.05). However, there were no significant differences in whole-body moisture, crude protein and crude ash of fish fed all diets. Based on these growth performance results, the SLP(DHSM) combination replace up to 25% FM protein by the ANOVA test in juvenile olive flounder diets.