Nutritional enrichment to the diet of larval Scylla serrata
用酵母、小球藻、鱼油强化和豆油强化四种不同方式培养轮虫，再分别投喂锯缘青蟹幼体。分析测定轮虫和幼体的生化组成，结果显示，（１）不同方式培养的轮虫之间以及摄食这些轮虫的锯缘青蟹幼体之间的蛋白质含量都没有显著差异；（２）轮虫的脂类含量和脂肪酸组成与培养方式密切相关。小球藻轮虫的脂类含量最高，２０：５ｎ－３（ＥＰＡ）占总脂肪酸的比例也最高，为１８．０５％。鱼油轮虫则含有最多的２２：６ｎ－３（ＤＨＡ），占总脂肪酸３．１６％，脂类含量仅次于小球藻轮虫；（３）锯缘青蟹幼体的脂类含量和脂肪酸组成受相应饵料营养成分的影响。另外，幼体培育实验也发现，饵料营养成分影响幼体的存活率。结果表明，提高轮虫的ＥＰＡ和ＤＨＡ含量，尤其是ＤＨＡ含量，将有利于锯缘青蟹幼体的存活和发育。 【英文摘要】 The rotifers (Brachionus plicalis) were cultivated with four different conditions, fed with yeast (Sacharomyces cerevisiae), the algae (Chlorella sp.), enriched with emulsified preparation of fish oil or soybean oil, and then were fed to larval Scylla serrata. The biochemical composition of rotifers and larvae were examined. The results showed that: (1) There were no significant difference in protein content among rotifers cultivated by different condition and among larvae reared by these rotifers with diff...