Research Article: the Effect on Fatty Acid Contents of Rotifer (Brachionus Plicatilis) of Algamac 3050 and Olio Ω -3 Supplemented With Or Without L-Carnitine

This study determinated the enrichment effect of rotifers (brachionus plicatilis) with algamac 3050, olio ω-3 and selco parkle supplemented with l-carnitine on fatty acid composition. rotifers were enriched with singly or in a combination of commercial products with or without l-carnitine; s. parkle, s. parkle+algamac 3050, s. parkle+olio ω-3, s. parkle+algamac 3050+olio ω-3, s. parkle+l-carnitine, s. parkle+algamac 3050+l-carnitine, s. parkle+olio ω-3+l-carnitine, s. parkle+algamac 3050+olio ω-3+l-carnitine. considerable differences were found in the fatty acid composition of b. plicatilis fed with commercial enrichment diets. the highest epa, dha and pufa were determined in rotifers enriched with s. parkle+olio ω-3+l-carnitine, s. parkle+algamac 3050+l-carnitine, s. parkle+olio ω-3+algamac 3050+l-carnitine, respectively at 6 hour. the enrichment duration was found to have significant effect on pufa content of rotifers (p<0.05). this study clearly showed that l-carnitine can be used with commercial products to enrich the fatty acid contents of rotifers in marine fish hatcheries.