陈金民1
魏华1
沈竑2
成永旭1
龚蕾蕾3
1. 上海海洋大学 水产与生命学院, 上海 201306; 2. 上海滩涂生物资源开发研究所, 上海 202179; 3. 崇明县水产技术推广站, 上海 202150
组织中脂肪含量及脂肪酸组成与卵巢发育之间的关系
has become a popular crustacean species for aquaculture in China, and more studies are required on the nutritional requirements of the broodstock during maturation to improve broodstock and egg quality. Lipid is an important nutrient for growth of crustaceans not only as energy sources but also as essential . Hepatopancreas is regarded as a major lipid storage and processing organ in crustaceans. To clarify the variation of the lipid content and fatty acid composition during ovarian maturation (five stages divided), lipid content and fatty acid composition in hepatopancreas and ovary were determined at each stage during ovarian maturation. The results indicated that: (1) During ovarian maturation, the gonadosomatic index (GSI) increased dramatically from 0.12% to 6.64%, while the hepatopancreas index (HSI) decreased from 7.95% to 5.31%. (2) Although the dry matter content (%) in ovaries increased from 22.29% to 55.16% between stages Ⅰ and Ⅴ, a significant increase in the levels of lipid content in dry matter was only observed from stage Ⅱ(32.38%) to stage Ⅲ(41.90%16:1n7, C18:0, C18:1n9, C18:1n7, C18:2n6 and C18:3n3 were the principal fatty acid (FA). Compared to hepatopancreas, ovaries also contained high C20:4n6 and C20:5n3 and C18:2n6 accounted for a large proportion. (4) During ovarian maturation, decreased significantly, while that lipids in hepatopancreas may be transferred to the ovary of during maturation. The accorded to appropriate proportions at post-stages of ovarian maturation. C18:2n6 may play a more vital role during the ovarian and embryonic development compared to highly unsaturated fatty acid.
陈金民,魏华,沈竑,成永旭,龚蕾蕾.克氏原螯虾卵巢发育时期组织脂肪含量及脂肪酸组成[J].中国水产科学,2010,17(6):0-.[J]. Journal of Fishery Sciences of China,2010,17(6):0-
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