Dietary Source of Stearidonic Acid Promotes Higher Muscle DHA Concentrations than Linolenic Acid in Hybrid Striped Bass

• DOI: 10.1007/s11745-009-3372-9
• Publication Date: 2009-11-21T10:01:20Z
• Authors: Anant S. Bharadwaj; Steven D. Hart; Billie J. Brown; Yong Li; Bruce A. Watkins; Paul B. Brown
• Keywords: Linolenic acid

Rapid expansion of aquacultural production is placing increasing demand on fish oil supplies and intensified the search for alternative lipid sources. Many potential sources contain low concentrations long chain n-3 fatty acids conversion dietary linolenic acid to longer highly unsaturated a relatively inefficient process in some species. A 6-week study was conducted compare tissue (FA) hybrid striped bass fed either 18:3n-3 (alpha-linolenic acid; ALA) or 18:4n-3 (stearidonic SDA). Hybrid were control diet containing oil, diets ALA SDA at three different levels (0.5, 1 2% diet). There no significant differences whole animal responses between SDA. Liver muscle responsive dosages fed. However, only 22:6n-3 significantly affected by source 18 carbon precursors. Muscle higher compared ALA. Based these data, it appears that feeding can increase muscle.