Effect of dietary astaxanthin on the growth performance, non-specific immunity, and antioxidant capacity of pufferfish (Takifugu obscurus) under high temperature stress
文献类型: 外文期刊
作者: Cheng, Chang-Hong 1 ; Guo, Zhi-Xun 1 ; Ye, Chao-Xia 2 ; Wang, An-Li 2 ;
作者机构: 1.Chinese Acad Fishery Sci, South China Sea Fisheries Res Inst, Key Lab S China Sea Fishery Resources Exploitat &, Minist Agr, Guangzhou 510300, Guangdong, Peoples R China
2.South China Sea Bioresource Exploitat & Utilizat, Guangzhou, Guangdong, Peoples R China
3.South China Normal Univ, Sch Life Sci, Guangdong Prov Key Lab Healthy & Safe Aquaculture, Key Lab Ecol & Environm Sci,Guangdong Higher Educ, Guangzhou 510631, Guangdong, Peoples R China
4.South China Normal Univ, Sch Life Sci, Guangdong Prov Key Lab Healthy & Safe Aquaculture, Key Lab Ecol & Environm Sci,Guangdong Higher Educ
关键词: Takifugu obscurus;Astaxanthin;Growth performance;Immune response;High temperature stress
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 1 期
页码:
收录情况: SCI
摘要: The present study was conducted to investigate the effects of astaxanthin on growth performance, biochemical parameters, ROS production, and immune-related gene expressions of the pufferfish (Takifugu obscurus) under high temperature stress. The experimental basal diets supplemented with astaxanthin at the rates of 0 (control), 20, 40, 80, 160, and 320 mg kg(-1) were fed to fish for 8 weeks. The results showed that the fish fed diet with 80, 160, and 320 mg kg(-1) astaxanthin significantly improved weight gain and specific growth rate. Furthermore, fish fed the moderate dietary astaxanthin increased plasma alkaline phosphatase activities, and decrease plasma aspartate aminotransferase and alanine aminotransferase activities. After the feeding trial, the fish were exposed to high temperature stress for 48 h. The results shown that astaxanthin could suppress ROS production induced by high temperature stress. Meanwhile, compared with the control group, the astaxanthin groups increased SOD, CAT, and HSP70 mRNA levels under high temperature stress. These results showed that the basal diet supplemented with 80-320 mg kg(-1) astaxanthin could enhance growth, nonspecific immune responses, and antioxidant defense system and improve resistance against high temperature stress in pufferfish.
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