본 연구에서는 단백질(51~5%) 및 지질(9~15%) 함량이 다른 배합사료(EP)와 생사료(MP)를 공급하면서 사육한 양식넙치의 육질을 비교해 보고자 하였다. 사육실험은평균체 중 106g의 넙치를 원형수조에 40마리씩 실험구별로 2반복으로 수용하면서, 단백질 및 지질 함량이 서로 다른 실험 배합사료(EP1, EP2, EP3)와 수입산 상품 배합사료(EP4) 및 MP를 16주간 공급하면서 사육하였다. 수분함량은 생사료(MP)를 공급한 넙치의 등근

This study was conducted to investigate the effect of extruded pellets (EP) containing different levels of protein (51%-55%) and lipid (9%-15%) on flesh quality of flounder (Paralichthys olivaceus) comparing with raw fish-based moist pellet (MP). Two replicate groups of 40 fish per each tank (initial mean weight 106 g) were fed one of three experimental EP (EP1, EP2 and EP3) containing different protein and lipid levels, a commercial EP (EP4) and MP for 16 weeks. Moisture content of fish fed MP was significantly higher than that of fish fed all EP. Significantly higher contents of 16:1n-7, 20:4n-6, 20:5n-3 and lower 18:2n-6 were observed in fish fed EP4 and MP compared with fish fed EP1, EP2, EP3. The 22:6n-3 content was not significantly different among all groups. Taurine content of fish fed MP was significantly higher than that of fish fed all EP. Asparagine content of fish fed EP1 was significantly higher than that of fish fed EP2, EP, EP4 and MP. Significant difference were observed in lysine and serine contents of fish fed experimental diets. In nucleotides and their related compounds, ATP and AMP content was not affected by diets. Significant difference were observed in IMP contents of fish fed experimental diets. Textural properties, no significant difference was observed among the fish groups fed different diets.

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