TÓM TẮT NỘI DUNG:

The influence of enriching live feeds with mannan oligosaccharide (MOS, Bio-MosTM) and essential fatty acids (Arti-KolTM) on survivability and growth performance of yellowtail kingfish (Seriola lalandi) larvae were examined. Live feeds included rotifers (Branchionus plicatilis) and Artemia which were enriched for 8hr with Nanochloris oculata, an immunostimulant Bio-MosTM, a commercial fatty acid booster Arti-KolTM, and combination of Bio-MosTM and Arti-KolTM in equal proportion. The results indicated that survivability was not affected by enrichment. When the larvae were fed live feeds enriched with Bio-MosTM only, growth performance measured as length of 12-day-post-hatch larvae were significant higher (P<0.05) than those fed live feeds un-enriched with N.oculara, Arti-KolTM, and combination. However, due to the lack of long term larval survivability in the present study, further research should be conducted on investigating the optimum rearing conditions under laboratory conditions in order to fully assess any immune responses by feeding live feeds enriched with various immunodulators.