文章摘要
王丽娟.绿色微囊藻等不同食物对大型生长和脂类成分的影响[J].水产学报,2006,30(6):843~847
绿色微囊藻等不同食物对大型生长和脂类成分的影响
Effects of Microcystis viridis and other different feeding conditions on growth and lipid composition of Daphnia magna
投稿时间:2008-05-05  修订日期:2008-05-05
DOI:10.3724/SP.J.00001
中文关键词: 大型  绿色微囊藻  食物条件  总脂  脂肪酸
英文关键词: Daphnia magna  Microcystis viridis  total lipid  fatty acid
基金项目:国家自然科学基金(39900112)
作者单位E-mail
王丽娟 上海水产大学 summer7756@sina.com 
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英文摘要:
      The growth and reproduction of Daphnia magna fed with Microcystis viridis and Chlorella spp respectively and 20% fish oil + 80% yeast and yeast were studied. The intrinsic rate of natural increase of Daphnia magna (rm) was 0.243 fed with Microcystis viridis, 0.301 with Chlorella spp., 0.244 with 20% fish oil + 80% yeast and 0.193 with yeast. The result showed that:Daphnia magna fed with Microcystis viridis had lower growth rates than that fed with Chlorella spp. an d 20% fish oil + 80% yeast which both had full fatty acids. And the Daphnia magna fed with yeast was the lowest. So the fatty acids composition of diet may affect the growth of Daphnia magna. This paper further examined total lipids and main HUFA (EPA and DHA) compositions of the continuous three generations of Daphnia magna (in order to get rid of t he effects of former diet) fed with different of above diets (except the yeast). The result showed that:the three generations of the D. magna fed with Microcystis viridis had the lowest total lipids and the percentages of the HUFA (EPA, and no DHA) have a significant decrease and get the lowest EPA in the final experiment because of the very low HUFA especially EPA and DHA in Microcystis viridis. So the results indicate that Microcystis viridis with low HUFA made the lower growth rate, spawn ing rate and hatching rate of Daphnia magna.
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