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吡啶甲酸铬对热应激异育银鲫血清生化指标的影响
引用本文:王晶晶,刘文斌,鲁康乐,蒋阳阳,姜雪姣,梁丹妮.吡啶甲酸铬对热应激异育银鲫血清生化指标的影响[J].淡水渔业,2011,41(2):51-56.
作者姓名:王晶晶  刘文斌  鲁康乐  蒋阳阳  姜雪姣  梁丹妮
作者单位:南京农业大学动物科技学院江苏省水产动物营养重点实验室;
基金项目:现代农业产业技术体系建设专项-国家大宗淡水鱼类产业技术体系资金资助(nycytx-49-21); 江苏省科技支撑计划(农业)项目-新型渔用复合促生长饲料添加剂关键技术研究与开发资金资助(BE2010394)
摘    要:选取240尾初始体重为(31.80±1.07)g的异育银鲫(Carassius auratus gibelio),分为4组,分别饲喂在基础饲料中添加0μ/kg(对照组和热应激1组)、300μg/kg(热应激2组)、600 μg/kg(热应激3组)吡啶甲酸铬(以Cr3+计)的试验饲料,在室内可控温循环水养殖系统中常温(2...

关 键 词:吡啶甲酸铬  热应激  异育银鲫(Carassius  auratus  gibelio)  血清生化指标

Effects of chromium picolinate on serum biochemical parameters of heat-stressed carp,Carassius auratus gibelio
WANG Jing-jing,LIU Wen-bin,LU Kang-le,JIANG Yang-yang,JIANG Xue-jiao,LIANG Dan-ni.Effects of chromium picolinate on serum biochemical parameters of heat-stressed carp,Carassius auratus gibelio[J].Freshwater Fisheries,2011,41(2):51-56.
Authors:WANG Jing-jing  LIU Wen-bin  LU Kang-le  JIANG Yang-yang  JIANG Xue-jiao  LIANG Dan-ni
Institution:WANG Jing-jing,LIU Wen-bin,LU Kang-le,JIANG Yang-yang,JIANG Xue-jiao,LIANG Dan-ni(Key Laboratory of Aquatic Nutrition of Jiangsu Province,College of Animal Science and Technology,Nanjing Agricultural University,Nanjing 210095)
Abstract:To investigate the effect of chromium picolinate on the regulatory effect of the carp,Carassius auratus gibelio,under normal temperature(25 ℃) and high temperature(31 ℃),240 fish(mean initial weight of 31.80±1.07 g) were randomly divided into four groups.Fish were fed diets added with 0 μg/kg(as control group and heat-stressed group 1),300 μg/kg(as heat-stressed group 2),600 μg/kg(as heat-stressed group 3) chromium picolinate(in terms of Cr3+),respectively.After four groups being cultivated for 3 days at 25 ℃,group 1,2 and 3 were heat-stressed for 24 hours at 31 ℃,and then recovered 12 hours after heat stress.Serum biochemical parameters,i.e,glucose,insulin(INS),cortisol,creatine kinase(CK),in each group were determined when heat stress lasted for 0 h,12 h,24 h and recovery 12 h.There was no significant change on serum biochemical parameters of control group at 25 ℃(P>0.05).Concentration of serum glucose in 3 groups heat-stressed for 12 hours increased significantly(P<0.05).Compared with heat-stressed for 24 h group 1,concentration of serum glucose in group 2 and 3 decreased.After recovery 12 hours,the concentration of serum glucose in group 3 was not distinct compared with control group(P>0.05).Content of serum INS in 3 groups heat-stressed for 12 hours decreased notablely(P<0.05).The concentration of INS in group 2 and 3 was higher than that of group 1 after heat-stress 24 hours(P>0.05).The content of INS in group 2 and 3 increased continuously after 12 h recovery,while that in group 3 was not notablely changed compared with the control group(P>0.05).The activity of CK and content of cortisol in the serum of 3 heat-stressed groups increased significantly after heat stress(P<0.05).Heat-stressed group 3 was close to control group after recovering for 12 hours(P>0.05).The results indicated that the addition of 600 μg/kg chromium picolinate could increase the ability of C.auratus gibelio to resist heat stress.
Keywords:chromium picolinate  heat stress  Carassius auratus gibelio  serum biochemical parameters  
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