n-3 Highly Unsaturated Fatty Acid Requirement of the Korean Rockfish Sebastes schlegeli

Abstract

In order to investigate the n-3 highly unsaturated fatty acids (n-3HUFA) requirement of the Korean rockfish Sebastes schlegeli, two experiments were conducted in the flush-out aquarium system. 1. Effects of different dietary fatty acids on growth and feed efficiency Efficacy of different fatty acids on the Korean rockfish was investigated by feeding diets containing each of the different fatty acids, 12:0, 18:1n-9, 18:2n-6, 18:3n-3, and n-3HUFA for 9 weeks. The best growth and feed efficiency were obtained from the fish fed diet containing n-3HUFA (P to at dietary lipid level. After 6 weeks of feeding experiment, fish performance and fatty acid composition of liver were studied. Growth was significantly improved with increasing dietary n-3HUFA level up to the in the diet (P in diet.