| 亚硝态氮对鲤鱼种血液SOD及GSH-Px的影响 |
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| 引用本文： | 韩英,张辉,王琨.亚硝态氮对鲤鱼种血液SOD及GSH-Px的影响[J].淡水渔业,2007,37(1):66-68. |
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| 作者姓名： | 韩英 张辉 王琨 |
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| 作者单位： | 东北农业大学动物科学技术学院,哈尔滨,150030 |
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| 摘 要： | 研究了不同浓度的亚硝态氮对鲤(Cyprinus carpio)鱼种抗氧化能力的影响。试验鱼为体重130~250 g的鲤鱼种,按水体NO2--N浓度设3组共9个处理进行试验,其中对照组NO2--N浓度低于0.01 mg/L,低浓度组为0.2 mg/L、0.4 mg/L、0.6 mg/L、0.8 mg/L,高浓度组为1.5 mg/L、2.5 mg/L、3.5 mg/L、4.5 mg/L,试验期30 d。结果显示:低浓度组的平均超氧化物歧化酶(SOD)活力在150~175 U/mL之间;高浓度组的SOD酶活力在70~90 U/mL之间,明显低于低浓度组(P<0.05);不同NO2--N浓度对鲤鱼种血液中谷胱甘肽过氧化物酶(GSH-Px)活力的影响没有显著差异(P≥0.05),其平均活性在250~350 U/mL之间。结论:水体中NO2--N含量超过1.5 mg/L时,鲤鱼种的抗氧化能力受到一定影响。
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| 关 键 词： | 鲤(Cyprinuscarpio) 亚硝态氮 SOD GSH-Px |
| 文章编号： | 1000-6907-(2007)01-0066-03 |
| 修稿时间： | 2006-05-09 |
Activity of SOD and GSH-Px in the Blood of Fingerling Cyprinus carpio under Different Nitrite Concentration |
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| HAN Ying,ZHANG Hui,WANG Kun.Activity of SOD and GSH-Px in the Blood of Fingerling Cyprinus carpio under Different Nitrite Concentration[J].Freshwater Fisheries,2007,37(1):66-68. |
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| Authors: | HAN Ying ZHANG Hui WANG Kun |
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| Institution: | College of Animal Science and Technology, Northeast Agriculture University, Harbin 150030 |
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| Abstract: | Effects of NO~-_2-N on the anti-oxidation ability of common carp fingerling were studied in this paper.Common carps(130~250 g) were divided into 3 groups:control group(NO~-_2-N concentration<0.01 mg/L),lower concentration group which included 4 treatments(0.2 mg/L,0.4 mg/L,0.6 mg/L,0.8 mg/L),and higher concentration group which included 4 treatments(1.5 mg/L,2.5 mg/L,3.5 mg/L,4.5 mg/L).This experiment lasted for 30 days.The results showed that the average activity of SOD in lower concentration group was 150~175 U/mL,which was higher than the higher concentration group(70~90 U/mL).The average activity of GSH-Px in different group had no significant difference(P≥ 0.05),which was 250~350 U/mL.In conclusion,the anti-oxidation ability of common carp fingerling would be affected when the concentration of NO~-_2-N exceeded to 1.5 mg/L. |
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| Keywords: | SOD GSH-Px |
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