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Effects of Temperature on Oxidative Stress Biomarkers in Juvenile Chinese Sturgeon (Acipenser Sinensis) under Laboratory Conditions

文献类型： 外文期刊

作者： Feng, Guangpeng 1 ; Zhuang, Ping 1 ; Zhang, Longzhen 1 ; Duan, Ming 1 ; Liu, Jianyi 1 ;

作者机构： 1.Chinese Acad Fishery Sci, E China Sea Fisheries Res Inst, Lab Biol & Germplasm Aquaculture, Shanghai 200090, Peoples R China

关键词： Chinese sturgeon;temperature;blood;physiology;oxidative stress

期刊名称：MATERIALS FOR ENVIRONMENTAL PROTECTION AND ENERGY APPLICATION, PTS 1 AND 2

ISSN： 1022-6680

年卷期： 2012 年 343-344 卷

页码：

收录情况： SCI

摘要： Temperature is known to affect both the structural and functional properties of proteins in ectothermic animals like fish. Habitat temperature can lead to oxidative stress and influence the metabolic rates of enzymes in fish. In the current study, juvenile Chinese sturgeon (Acipenser sinensis), an anadromous and threatened species that lives only in the Yangtze River, were cultured under laboratory conditions for 66 days at 15, 20, 25, and 30 degrees C. We then studied the effects of temperature on the oxidative stress biomarkers in juvenile Chinese sturgeon. We found the activity of lysozyme (LSZ) reached its maximum at 25 degrees C (30.1 +/- 12 mu g/mL), while it reached its minimum at 15 degrees C (13.1 +/- 3.3 mu g/mL). In addition, the activity of xanthine oxidase (XOD) reached its maximum at 30 degrees C (15.20 +/- 3.50), while it reached its minimum at 25 degrees C (12.01 +/- 1.66 U/L). Furthermore, both the ability of inhibiting hydroxyl radicals (AIHR) and total antioxidative capacity (T-AOC) were increased at first and subsequently decreased with increasing temperatures, and both reached their maximum at 20 degrees C (1344.9 +/- 349.2 U/mL and 9.54 +/- 0.36 U/mL, respectively). Both AIHR and T-AOC were significantly higher at 20 degrees C than their corresponding levels at 25 degrees C and 30 degrees C. These results indicate that the temperature stress was higher at 15 degrees C and 30 degrees C for juvenile Chinese sturgeon. Based on the exhibited levels of LSZ, XOD, AIHR, and T-AOC in fish, we conclude the temperature range of 20-25 degrees C caused the least stress on the fish, and should be considered as the appropriate growth temperature for juvenile Chinese sturgeon.

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