期刊
COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY A-MOLECULAR & INTEGRATIVE PHYSIOLOGY
卷 164, 期 2, 页码 376-382出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.cbpa.2012.11.010
关键词
Paracentrotus lividus; Sea urchin; Nutrition; Fatty acids; Diets; Gonads
资金
- EU FP7 project ENRICH
- University of Stirling
- Ardtoe Marine Laboratory
The effects of dietary fatty acids on the composition of Paracentrotus lividus gonads were investigated to termine whether dietary inputs affect their relative abundance during gametogenesis. Egg and embryo FA compositions were compared with that of mature gonads to understand how maternal FA is transferred to the offspring. Urchins were fed an experimental Pellet diet in comparison to brown Kelp (Laminaria digitata). FA profiles of diets, gonads, eggs and embryos revealed the presence in gonads of FA that was absent in the diets and/or higher in contents of some long-chain polyunsaturated fatty acid (LC-PUFA). Moreover, some unusual FA, such as non-methylene interrupted (NMI), was found in gonads, eggs and embryos, but not in the diets, suggesting that P. lividus may be capable of synthesizing this FA and accumulating them in the eggs. A description of gonad FA profiles during gametogenesis is reported for the first time and data suggest that eicosapentaenoic and docosahexaenoic acids are accumulated during gametogenesis, while arachidonic acid is highly regulated and is the only LC-PUFA clearly accumulated into the eggs along with NMI. Further studies are required to determine if maternal provisioning of FA has the potential to influence sea urchin production outputs and to increase hatchery profitability. (C) 2012 Elsevier Inc. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据