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STUDIES on the nutrition requirement of larval fish have made some progress abroad, but therehave been no reports on such studies in China. It was determined recently that n-3 HUFA (es-pecially 22: 6(n-3) (DHA) and 20:5 (n-3) (EPA)) is essential for larval seafish growth. Thehigh content of DHA in seafish eggs and the low content of DHA in rotifers show that rotifersas live food cannot satisfy the n-3 HUFA requirement of larval seafish. Some scientists ob-
STUDIES on the nutrition requirement of larval fish have made some progress abroad, but therehave been no reports on such studies in China. It was determined recently that n-3 HUFA (es-pecially 22: 6 (n-3) (DHA) and The high content of DHA in seafish eggs and the low content of DHA in rotifers show that rotifersas live food can not satisfy the n-3. HUFA requirement of larval seafish (20: 5 (n-3) (EPA)) is essential for larval seafish growth. Some scientists ob-