饥饿及不同饵料对蛤仔EPA/DHA含量的影响

Effects of Starvation and Different Baits on EPA/DHA Content of Clams

本实验以菲律宾蛤仔(Ruditapes philippinarum)为材料,测定分析了饥饿处理、投喂金藻、盐藻实验组的蛤仔EPA/DHA含量,结果表明,饥饿组和投喂金藻组EPA含量差异不显著(P>0.05);饥饿组和盐藻组EPA差异显著(P<0.05),各实验组EPA含量由多到少为饥饿组>投喂金藻组>投喂盐藻组;各实验组DHA含量由多到少为饥饿组>投喂金藻组>投喂盐藻组;饥饿组与投喂金藻组的蛤仔DHA含量差异不显著(P>0.05);饥饿组与投喂盐藻组DHA含量差异显著(P<0.05);投喂金藻组与盐藻组DHA含量差异显著(P<0.05)。研究表明,蛤仔可以在自身体内合成EPA和DHA,短时间饥饿可以提高蛤仔体内的DHA含量,不同饵料对蛤仔EPA和DHA的合成有显著影响。

In this experiment, the EPA/DHA content of Philippine clam(Ruditapes philippinarum) was measured and analyzed in the experimental groups of starvation, Chrysophyta and Dunaliella Salina. The results showed that there was no significant difference in EPA content between starvation group and Chrysophyta group(P>0.05), but there was significant difference in EPA between starvation group and Dunaliella Salina group(P<0.05). The order of EPA content in each experimental group was starvation group > Chrysophyta group > Dunaliella Salina group. The order of DHA content in each experimental group was starvation group > Chrysophyta group > Dunaliella Salina group. There was no significant difference in DHA content between starvation group and Chrysophyta group(P>0.05), but there was significant difference in DHA content between starvation group and Dunaliella Salina group(P<0.05), and there was significant difference in DHA content between Chrysophyta group and Dunaliella Salina group(P<0.05). The research result has shown that clams can synthesize EPA and DHA in their bodies, starvation for a short time can increase the content of DHA in clam bodies, and different baits have significant effects on the synthesis of EPA and DHA.