期刊
JOURNAL OF FISH BIOLOGY
卷 69, 期 4, 页码 1178-1189出版社
BLACKWELL PUBLISHING
DOI: 10.1111/j.1095-8649.2006.01196.x
关键词
Anguilla japonica; arachidonic acid; docosahexaenoic acid; egg quality; lipid
Eggs of Japanese eel Anguilla japonica were obtained by artificial induction of maturation. Fertilization and hatching rates, and survival rates of normal larvae were examined. The levels of total lipids and polar lipids (PL) of high quality (HQ; > 80% survival rate at 8 days post-hatch) eggs were significantly lower than low quality (LQ; hatching and survival rates were zero) eggs. The docosahexaenoic acid (DHA) level in PL of HQ eggs, however, was significantly higher than in LQ eggs. In contrast to DHA, arachidonic acid level was negatively correlated with egg quality variables and it was lower in HQ than in LQ eggs. Most of the egg lipid and fatty acid components showed larger variation in LQ than in HQ eggs. (c) 2006 The Authors Journal compilation (c) 2006 The Fisheries Society of the British Isles.
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