Effects of dietary vitamin E supplementation on growth performance, lipid peroxidation and tissue fatty acid composition of black sea bream (Acanthopagrus schlegeli) fed oxidized fish oil
文献类型: 外文期刊
第一作者: Peng, S.
作者: Peng, S.;Chen, L.;Hou, J.;Yu, N.;Long, Z.;Li, E.;Peng, S.;Hou, J.;Qin, J. G.;Ye, J.
作者机构:
关键词: Feeding experiments;Vitamin E;Feed Feeding experiments;Feed composition;Nutritional requirements;Diets;Marine fish;Fatty acids;Fish oils;Fish culture;Acanthopagrus schlegeli;MED;Black Sea
期刊名称:AQUACULTURE NUTRITION ( 影响因子:3.497; 五年影响因子:3.78 )
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收录情况: SCI
摘要: A 9-week feeding experiment was conducted to evaluate the effects of dietary vitamin E supplementation on growth, lipid peroxidation and fatty acid composition of black sea bream fed oxidized oil. The FL and OL diets contained fresh fish oil and oxidized oil, respectively, without additional vitamin E supplementation. Another four l-tocopherol levels (150, 250, 450 and 800 mg kgp# diet) were used within the OL diet, giving a total of six experimental diets. Fish were hand-fed to apparent satiation twice daily. At end of the trial, the weight gain and survival rate of fish were significantly reduced by diets with oxidized oil, whereas hepatosomatic index was remarkably high in fish fed oxidized oil diet. However, vitamin E supplementation to diet significantly improved growth performance and increased vitamin E content in the liver. Although, liver thiobarbituric acid reactive substances and docosahexaenoic acid were significantly increased by dietary oxidized oil, their levels were reduced by dietary vitamin E supplementation. Our results indicate that the fish were performing the best at intermediate concentrations of l-tocopherol and a dose of >150 mg l-tocopherol kgp# diet could reduce lipid peroxidation and improve fish growth performance when oxidized oils exist in diet.
分类号: Q17
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