Journal
FISH PHYSIOLOGY AND BIOCHEMISTRY
Volume 36, Issue 3, Pages 377-385Publisher
SPRINGER
DOI: 10.1007/s10695-009-9303-0
Keywords
Compensatory growth; Dietary nutrient composition; Feeding regime; Olive flounder (Paralichthys olivaceus)
Categories
Funding
- Korean Government (MOEHRD) [KRF-2006-005J00501]
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To assess the effect of dietary ascorbate on lipid metabolism, 1-year black sea bream (Acanthopagrus schlegelii) were reared on a casein-based purified diet and an ascorbate fortified diet (1,100 mg of l-ascorbyl-2- monophosphate-Mg/kg diet). The fortified ascorbate was effectively incorporated into the fish body and elevated muscle carnitine content. Fortifications of dietary ascorbate depressed activities of glucose-6-phosphate dehydrogenase and NADP-isocitrate dehydrogenase as lipogenic enzymes in the hepatopancreas and intraperitoneal fat body. Starvation after feeding experiment activated carnitine palmitoyltransferase as a lipolysis enzyme in the hepatopancreas in both control and vitamin C(VC) groups, while the lipolysis activity was significantly higher in VC group. These results confirmed that dietary ascorbate depressed lipogenesis and activated lipolysis, i.e., influenced the lipid metabolism of black sea bream.
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