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该文用 7株富含 EPA、DHA的海洋微藻对褶皱臂尾轮虫 (Brachionus plicatilis)进行强化 ,通过检测轮虫的脂肪酸组成和含量来研究这几种微藻对轮虫的营养价值。结果表明 :轮虫中的脂肪酸组成和含量与所用饵料密切相关 ,尤其是 EPA、DHA等多不饱和脂肪酸 (PUFA)主要取决于这些脂肪酸在藻中的含量 ;强化 12 h后 ,轮虫中的 n- 3PUFA含量一般为饵料中含量的 75 %左右 ,强化 2 4 h达 80 %以上 ,强化 7d的轮虫可达 90 %以上。
In this paper, seven marine microalgae enriched with EPA and DHA were used to fortify Brachionus plicatilis. The nutritional value of these microalgae against rotifers was studied by detecting the fatty acid composition and content of rotifer. The results showed that the composition and content of fatty acids in rotifer were closely related to the bait used, especially the polyunsaturated fatty acids (PUFA) such as EPA and DHA mainly depended on the content of these fatty acids in algae. After 12 h of reinforcement, The content of n-3PUFA is generally about 75% of the content in the diet, more than 80% after 24 h of enhancement, and more than 90% of the rotifers strengthened for 7 days.