| Worldwide supplies of fish oils and meals have reached their sustainable limits, forcing industries to look for alternative lipid sources for use in marine fish diets. As terrestrial animal products are prohibited, there is great interest in aquaculture to produce fish better able to utilise vegetable feedstuffs. Vegetable products are rich in 18 carbon fatty acids (C18 FA) but do not contain C20-22 n-3 highly unsaturated fatty acids (n-3 HUFA), such as ecosapentaenoic (EPA; 20:5n-3) and docosahexaenoic acids (DHA; 22:6n-3). The aim of this study was to know if it would be possible to apply a metabolic programming using nutritional conditioning during early larval stages, as already described in mammals, in order to stimulate the FA desaturation pathways... |
