摘要
综述了鲍鱼必需脂肪酸 (essentialfattyacid ,EFA)营养生理研究进展。已有的研究表明鲍鱼的必需脂肪酸主要包括亚油酸 (C18∶2n 6)、亚麻酸 (C18∶3n 3 )、花生四烯酸 (C2 0∶4n 6)以及EPA(C2 0∶5n 3 ) ,但对于不同种类的鲍鱼 ,这 4种EFA效果有所不同。鲍鱼体内的脂肪酸组成因不同生长发育阶段以及摄食不同食物而存在一定差异。鲍鱼体内DHA(C2 2∶6n 3 )含量极少或痕量。由此鲍鱼对必需脂肪酸的需要与其它的水产动物存在较大差异。C2 0∶5n 3对鲍鱼的生长有着极其重要的作用 ,它能显著提高鲍鱼的生长和饲料转化率 ,改善鲍鱼的繁殖力。鲍鱼体内含有较高水平的C2 0∶4n 6。C2 0∶4n 6和C2 0∶5n 3之间的协同效应对鲍鱼的营养生理有重要的影响。对于鲍鱼体内C2 0∶4n 6潜在的生理和生化作用已逐渐引起重视 ,这将是以后研究关注的焦点。
This review investigates advance in nutritional physiology of essential fatty acids (EFAs) for abalone. Some previous studies showed that the EFAs in abalone include linoleic acid (C18∶2n-6), linolenic acid (C18∶3n-3), arachidonic acid (C20∶4n-6) and eicosapentaenoic acid (EPA). However, these EFAs play different roles in different abalone species. The EFA composition in abalone varies with development stage and variation in diets. There is little or no docosahexaenoic acid (DHA) in abalone, which suggests that its EFAs requirement is different from other species. The C20∶5n-3 plays an important role in growth, feed conversion efficiency and reproduction. The C20∶4n-6 level in abalone is relatively higher. The C20∶4n-6 and EPA have synergic effects on nutritional physiology. The effect of C20∶4n-6 on the physiology and chemistry in abalone has become a focus in recent years.
出处
《中国海洋大学学报（自然科学版）》
CAS
CSCD
北大核心
2004年第6期983-987,共5页
Periodical of Ocean University of China
基金
国家杰出青年科学基金 (3992 50 2 9)资助
关键词
鲍鱼
脂肪酸
营养
abalone
fatty acid
nutrition
