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Growth performance and protective effect of vitamin E on oxidative stress pufferfish (Takifugu obscurus) following by ammonia stress

文献类型： 外文期刊

作者： Cheng, Chang-Hong 1 ; Guo, Zhi-Xun 1 ; Wang, An-Li 3 ;

作者机构： 1.Chinese Acad Fishery Sci, South China Sea Fisheries Res Inst, Minist Agr, Key Lab South China Sea Fishery Resources Exploit, Guangzhou 510300, Guangdong, Peoples R China

2.South China Sea Bioresource Exploitat & Utilizat, Guangzhou, Guangdong, Peoples R China

3.South China Normal Univ, Guangdong Prov Key Lab Hlth & Safe Aquaculture, Sch Life Sci, Key Lab Ecol & Environm Sci,Guangdong Higher Educ, Guangzhou 510631, Guangdong, Peoples R China

关键词： Vitamin E; Growth performance; Oxidative stress; Disease resistance

期刊名称：FISH PHYSIOLOGY AND BIOCHEMISTRY （ 影响因子：2.794； 五年影响因子：2.876 ）

ISSN： 0920-1742

年卷期： 2018 年 44 卷 2 期

页码：

收录情况： SCI

摘要： This study was conducted to determine the effects of vitamin E on growth performance, biochemical parameters, and antioxidant capacity of pufferfish (Takifugu obscurus) exposed to ammonia stress. The experimental basal diets supplemented with vitamin E at the rates of 2.31 (control), 21.84, 40.23, 83.64, 158.93, and 311.64 mg kg(-1) dry weight were fed to fish for 60 days. After the feeding trial, the fish were exposed to 100 mg L-1 ammonia-nitrogen for 48 h. The results shown that the vitamin E group significantly improved weight gain, specific growth rate, and the expression levels of growth hormone receptors and insulin-like growth factor. Fish fed with the vitamin E-supplemented diets could increase plasma alkaline phosphatase activities and decrease plasma glutamicoxalacetic transaminase and glutamic-pyruvic transaminase activities. The relative expression levels of heat shock proteins (40.23-311.64 mg kg(-1) vitamin E diet group), manganese superoxide dismutase (83.64-158.93 mg kg(-1) vitamin E diet group), catalase (40.23-311.64 mg kg(-1) vitamin E diet group), and glutathione reductase (40.23-311.64 mg kg(-1) vitamin E diet group) were upregulated. On the other hand, the decreased level of reactive oxygen species (ROS) was observed in the 83.64-311.64 mg kg(-1) vitamin E additive group. These results showed that vitamin E might have a potentially useful role as an effective antioxidant to improve resistance in pufferfish.

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