Effect of dietary lipid on the fatty acid composition of silver perch (Leiopotherapon bidyanus) lipids

Abstract

1. 1. Silver perch reared on high fat diets accumulated significantly more body fat than those reared on fat free diets. 2. 2. Dietary fatty acids accumulated in both the depot lipids and phospholipids of the fish. 3. 3. On transfer from a high fat diet to a fat free diet, there was a preferential incorporation of both arachidonic ( 20:4(n-6) ) and docosahexenoic ( 22:6(n-3) ) acids into phospholipids during lipid turnover. 4. 4. It was concluded that silver perch have a dietary requirement for fatty acids of both the ( n-3 ) and ( n-6 ) series.