Zheng, F., Takeuchi, T., Kobayashi, M., Hirokawa, J., Watanabe, T.-1997
Nippon Suisan Gakkaishi, 63(1): 77-84
Abstract:
An experiment was conducted to determine the absorption of vitamin E (VE, alpha toc.) in rotifer and cod larvae, and the effect of DHA content in rotifer on the dropsy rate of cod larvae. In this experiment, rotifers were enriched with dry shark eggs supplemented with different levels of three types VE, such as DL alpha toc. acetate, DL alpha toc. free, or D alpha toc. free.
It was shown that D alpha toc. free was accumulated in rotifer more efficiently than DL alpha toc. free. Cod larvae can convert DL alpha toc, acetate to a free type of VE, but its absorption was low compared with the free type of VE. Furthermore, it was also found that the occurrence of dropsy rate in cod larvae reduced when the DHA content in rotifer was increased.
(Tokyo Univ. Fisheries, Dept. Aquat. Biosci., Minato Ku, Tokyo 108 Japan)
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