大型的总脂和脂肪酸组成随食物的变化及营养强化的实施而发生显著变化。酵母组总脂为 2 .5 % ,明显高于海水小球藻组 (1.6 5 % )和有机肥组 (1.5 % )。经鱼油强化或海水小球藻二次培养后脂类含量明显升高。三组中酵母组的MUFA含量最高为 5 5 %。主要是C16∶1ω7(2 2 % )与C18∶1ω9(2 3 % ) ,而PUFA最低 (16 .6 % ) ,其中EPA(2 .7% )、DHA(0 .8% )等ω3HUFA含量均很低 ;与酵母组相比 ,海水小球藻组和有机肥组的MUFA含量显著下降 ,PUFA含量显著升高 ,均为 30 %～ 33 %左右 ,三组中海水小球藻组EPA含量最高 (14% ) ,其次是有机肥组 (5 .9% )和酵母组 (2 .7% ) ;有机肥组DHA含量最高 ,达 11.7% ,而酵母组和海水小球藻组DHA含量均很低 ,仅为 0 .7%～ 0 .8%。经鱼油强化后 ,酵母组的MUFA含量显著下降 ,PUFA显著升高 ,EPA由 2 .7%提高到 10 %左右 ,DHA由 0 .8%升至 7% ;酵母组经海水小球藻二次培养后MUFA显著降低 ,PUFA相应升高 ,EPA由 2 .7%提高到 9.7% ,而DHA含量无变化。 The total lipid and fatty acid composition of macrobrachium varies significantly with food changes and nutrient fortification. Total yeast in the yeast group was 2.5%, which was significantly higher than that in the marine chlorella group (1.6 5%) and organic fertilizer group (1.5%). After the fish oil fortified or chlorella secondary cultured lipid content was significantly increased. The MUFA content of the yeast group in the three groups was up to 55%. (20%) and C18:1ω9 (23%), while the PUFA was the lowest (16.6%), of which EPA (2.7%), DHA The content of PUFA in the marine chlorella group and the organic fertilizer group was significantly decreased, the PUFA content was significantly increased, both of them were about 30% -33%, the highest content of EPA in the three groups (14%), followed by organic fertilizer (5.9%) and yeast (2.7%). The content of DHA in the organic fertilizer group was the highest (11.7%), while the DHA content in both the yeast group and the marine chlorella group was very high Low, only 0 .7% ~ 0 .8%. After the fish oil fortified, the MUFA content of the yeast group decreased significantly, the PUFA increased significantly, the EPA increased from 2.7% to 10%, DHA rose from 0.8% to 7% After training, the MUFA decreased significantly and the PUFA increased accordingly. The EPA increased from 2.7% to 9.7%, while the DHA content did not change.