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盐度变化对虹鳟和硬头鳟抗氧化酶活性的影响
引用本文:杨静雯,杨小刚,黄铭,周演根,高勤峰,董双林.盐度变化对虹鳟和硬头鳟抗氧化酶活性的影响[J].中国海洋大学学报(自然科学版),2021,51(6):26-33.
作者姓名:杨静雯  杨小刚  黄铭  周演根  高勤峰  董双林
作者单位:教育部海水养殖重点实验室(中国海洋大学),山东 青岛 266003;教育部海水养殖重点实验室(中国海洋大学),山东 青岛 266003;青岛海洋科学与技术试点国家实验室 海洋渔业科学与食物产出过程功能实验室,山东 青岛 266237
基金项目:国家重点研究发展计划项目(2019YFD0901005);国家自然科学基金项目(31702364);山东省重点研究发展计划项目(2018CXGC0101,SD2019YY006)资助。
摘    要:本文研究了不同盐度驯化方式下虹鳟(Oncorhynchus mykiss,(99.44±0.26)g(简写为99 g))和两种规格硬头鳟(Oncorhynchus mykiss,(99.01±0.61)g(简写为99 g)和(394.50±1.16)g(简写为395 g))的血清抗氧化酶活性变化.实验设置4种盐度驯化方...

关 键 词:虹鳟  硬头鳟  盐度驯化  抗氧化酶  丙二醛

Effects of Salinity Change on Antioxidant Enzyme Activities of Rainbow and Steelhead Trout(Oncorhynchus mykiss)
YANG Jing-Wen,YANG Xiao-Gang,HUANG Ming,ZHOU Yan-Gen,GAO Qin-Feng,DONG Shuang-Lin.Effects of Salinity Change on Antioxidant Enzyme Activities of Rainbow and Steelhead Trout(Oncorhynchus mykiss)[J].Periodical of Ocean University of China,2021,51(6):26-33.
Authors:YANG Jing-Wen  YANG Xiao-Gang  HUANG Ming  ZHOU Yan-Gen  GAO Qin-Feng  DONG Shuang-Lin
Institution:(Key Laboratory of Mariculture(Ocean University of China), Ministry of Education, Qingdao 266003, China;Function Laboratory for Marine Fisheries Science and Food Production Processes,Pilot National Laboratory for Marine Science and Technology(Qingdao), Qingdao 266237, China)
Abstract:The aims of the study were to compare different salinity acclimation methods in rainbow trout(Oncorhynchus mykiss,(99.44±0.26)g(abbreviated as 99 g in the following text))and steelhead trout in two sizes(O.mykiss,(99.01±0.61)g(abbreviated as 99 g in the following text)and(394.50±1.16)g)(abbreviated as 395 g in the following text)by referring to the serum antioxidant enzyme activities.Fish were distributed to four groups and treated with different salinity acclimation methods,freshwater(T0),from freshwater to seawater(T30),from freshwater to salinity of 14,after 24 hours,increase salinity at a rate 2 d-1(T2)and 6 d-1(T6)to salinity of 30,respectively.(1)Two-way ANOVAs indicated that the acclimation methods and time have a significant effect on serum SOD,MDA,GSH-Px in 99 g rainbow trout and steelhead.(2)In T30 group,the activities of superoxide dismutase(SOD),glutathio-ne peroxidase(GSH-Px)and malondialdehyde(MDA)of 99 g rainbow trout and 99 g steelhead were significantly higher than those of control groups,in 0.5,1,4,8,15 and 40 d.At the end of experiment,the activities of SOD,GSH-Px and MDA in rainbow trout of T2 group have no significant difference from those of control,the activities of GSH-Px in steelhead of T2 group have no significant difference from that of control as well,but the activities of SOD,GSH-Px in 99 g rainbow trout and steelhead trout of T6 group were significantly higher than those of control.In the group of T2,the SOD,CAT and MDA activities of 395 g steelhead have no significant difference from that of control(P>0.05).However,in the groups of T6 and T30,the SOD,CAT and MDA activities of 395 g steelhead were significantly higher than those of control(P<0.05).The results indicated that the rainbow trout and steelhead trout have the better adaptability for acclimation method in T2 group.The adaptability of 395 g steelhead trout to salinity acclimation is better than 99 g steelhead trout.
Keywords:rainbow trout  steelhead  salinity acclimation  antioxidant enzyme  malondialdehyde
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