作　　者： ; ; ; ; ; ; ;

机构地区： 广东省农业科学院

出　　处： 《广东农业科学》 2006年第12期77-81,共5页

摘　　要： 以精制鲽鱼油和豆油分别作为n-3及n-6系列脂肪酸源,配制5种不同n-3/n-6脂肪酸比值的饲料,进行连续8周饲喂军曹鱼幼鱼试验。结果表明,当饲料中的n-3/n-6脂肪酸比值为2.57时,军曹鱼的增重率和饲料效率最高;饲料中不同n-3/n-6脂肪酸比值对军曹鱼血清5项生理指标的影响不显著,但随着n-3/n-6脂肪酸比值的降低,血清中的谷丙转氨酶、谷草转氨酶、胆固醇含量表现出下降趋势;饲料中n-3、n-6多不饱和脂肪酸含量,与军曹鱼肌肉和肝脏的n-3、n-6多不饱和脂肪酸含量呈正相关。统计分析表明,军曹鱼饲料中适宜的n-3、n-6脂肪酸比例为2.98∶1。 The effects of different feedstuff n- 3/n- 6 ratios on growth and tissue fatty acids composition of juvenile cobia were studied with refined fish oil and soy oil as n - 3 and n 6 series of fatty acids source. The results showed that the cobia had the highest weight gain rate and feed efficiency when n- 3/n 6 fatty acid ratio was 2.57, and five serum biochemical indices of five trial groups had no significant difference, but ALT, AST and TC inclined to decrease with the n - 3/n - 6 fatty acid ratio decreasing, n- 3 and n 6 PUFA in the muscle were positive correlated with that in the feedstuff. The optimum feedstuff n- 3/n- 6 fatty acid ratio for cobia was 2.98.

关 键 词： 军曹鱼 脂肪酸比值 生长 脂肪酸组成

领　　域： [农业科学] [农业科学]