林尚书¹，章逃平¹，饶 科¹，石和荣²，黄建荣¹，黎祖福¹
（1中山大学生命科学学院，广东广州 510275；2 广东现代农业集团，广东广州 510630）

摘要：在基础饲料中分别添加20%、30%鱼浆及30%鱼浆+5%鱼油，制成3种饲料，以投喂冰鲜鱼组为对照，研究试验饲料对军曹鱼（Rachycentron canadum Linnaeus）抗氧化和脂肪代谢能力的影响。结果显示，各组军曹鱼肝脏的超氧化物歧化酶（SOD）差异不显著（P>0.05）；冰鲜组肝脏谷胱甘肽过氧化物酶（GSH-Px）和血清SOD活性显著高于其它组（P<0.05）；30%鱼浆+5%鱼油组总抗氧化能力（T-AOC）显著高于其它3组（P<0.05）。各组军曹鱼血清胆固醇含量和肝脏脂肪含量差异不显著（P>0.05）；冰鲜组血清低密度脂蛋白胆固醇最高；30%鱼浆+5%鱼油组甘油三酯含量最低。实验结果表明，在投喂鱼浆饲料时，混合少量鱼油能提高军曹鱼整体抗氧化能力，更有利军曹鱼的健康生长。
关键词：军曹鱼；酶活性；抗氧化；脂代谢

2 Guangdong Modern Agriculture Group, Guangzhou 510630, China )

Abstract: In this paper, the impacts of different feeds (group 1: foundational diet + 20% fish paste; group 2: foundational diet + 30% fish paste; group 3: foundational diet + 30% fish paste + 5% fish oil; control group: ice fresh fish) on the cobia anti-oxidant and lipid metabolism were studied. The following are the results: the difference of the liver SOD among the four groups is not significant (P > 0.05). The GSH - Px and serum SOD activity of the control group is higher than the other groups significantly (P < 0.05). The T - AOC of 30% fish paste + 5% fish oil group is higher than the other three groups significantly (P < 0.05). The levels of cholesterol and liver lipid difference were not significant among the groups (P> 0.05). The Cobia of control group has the highest level of LDL cholesterol, and the 30% fish paste + 5% fish oil group is healthier than the other groups for the lowest level of triglyceride. The results indicated that the feeds mixed fish paste and fish oil is benefit for the cobia anti-oxidation ability and lipid metabolism, and better for the fish growth.
Key words: cobia, enzymatic activity, anti-oxidation, lipid metabolism

（来源：《渔业现代化》2014,41(1):21-25）