Abstract
In order to improve the survival and growth of aquacultured finfish larvae, nutritional enrichment of rotifers is necessary. In the development of methodologies for material and process, n-3HUFAs especially EPA and DHA were the main focused nutrients for enrichment. Although the addition of those fatty acids to rotifer was conducted in vitro, the enrichment of DHA or EPA to phospholipid was suggested recently, as well as the optimum ratio among DHA, EPA, and arachidonic acid. On the other hand, other nutrients, e.g., taurine, vitamin A, and some minerals, have also been suggested to enrich rotifers. These mean that not only specific nutrients but also the balance among nutrients is important to enrich rotifers nutritionally and improve the performance of cultured finfishes. Moreover, the influence by rotifer culture method and protocol and the development of enrichment method should be taken into consideration for improving the efficiency of enrichment. Future studies should investigate whether rotifers can acquire all these nutrients from the balanced nutrition.
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