文章摘要
徐冬冬,楼宝,詹炜,史会来,毛国民,骆季安,程丽娜.高温胁迫对褐牙鲆生长及肝脏抗氧化酶活性的影响[J].水产学报,2010,34(7):1099~1105
高温胁迫对褐牙鲆生长及肝脏抗氧化酶活性的影响
Effect of high temperature stress on growth performance and activities of antioxidant enzymes in liver of olive flounder Paralichthys olivaceus
投稿时间:2010-03-27  修订日期:2010-05-12
DOI:10.3721/SP.J.1231.2010.06888
中文关键词: 褐牙鲆  高温胁迫  特定生长率  摄食率  超氧化物歧化酶  过氧化氢酶
英文关键词: Paralichthys olivaceus  high temperature stress  specific growth rate  feeding rate  superoxide dismutase  catalase
基金项目:国家“十一五”科技支撑计划(2007BAD43B05);浙江省重大科技专项(2008C12011,2009C12078,2009C12081)
作者单位E-mail
徐冬冬 浙江省海洋水产研究所 xudong0580@163.com 
楼宝 浙江省海洋水产研究所 loubao6577@sohu.com 
詹炜 浙江省海洋水产研究所  
史会来 浙江省海洋水产研究所  
毛国民 浙江省海洋水产研究所  
骆季安 浙江省海洋水产研究所  
程丽娜 浙江海洋学院  
摘要点击次数: 2106
全文下载次数: 1641
中文摘要:
      为了研究高温对褐牙鲆幼鱼生长及抗氧化酶活性的影响,对其不同温度处理(25、28、30、31、32 ℃)下的存活、生长、摄食及超氧化物歧化酶(SOD)和过氧化氢酶(CAT)的活力进行比较。结果显示25 ℃组、28 ℃组及30 ℃组的鱼没有死亡,31 ℃组的成活率为(95%±1.18%),32 ℃组的成活率仅为(20.83%±2.20%)。各温度处理组的特定生长率(SGR)、摄食率(FR)和饲料转化率(FCE)和水温的平方呈显著的负相关(SGR:R2=0.93;FR:R2=0.90;FCE:R2=0.86;P<0.01),即25~32 ℃时,特定生长率、摄食率和饲料转化率随温度升高而减小。各处理组的肝脏组织中的SOD及CAT活力随胁迫温度升高而降低。本研究表明32 ℃是褐牙鲆长期生存的临界上限温度,高温能够显著影响其生长和抗氧化酶的活性。
英文摘要:
      To investigate the effect of high temperature stress on growth performance and activities of antioxidant enzymes in juvenile olive flounder Paralichthys olivaceus,the survival,growth,feeding,activities of superoxide dismutase (SOD) and catalase(CAT) of olive flounder at different temperatures (25 ℃,28 ℃,30 ℃,31 ℃ and 32 ℃)were compared.The results showed that the survival rate of juvenile olive flounder was 100%at the temperatures of 25 ℃,28 ℃,and 30 ℃,and the survival rate was 95%±1.18% at the temperature of 31 ℃.Nevertheless,the survival rate was (20.83%±2.20%) at the temperature of 32 ℃.The water temperature significantly affected the specific growth rate(SGR),feeding rate(FR) as well as feed conversion efficiency(FCE) of juveniles.A quadratic regression was fit to describe the relationship between the SGR,FR,FCE and the water temperature(SGR:R2=0.93;FR:R2=0.90;FCE:R2=0.86;P<0.01).The SGR,FR and FCE reduced with increasing water temperature in the temperature range of 25-32 ℃. Moreover,SOD and CAT activities in liver were measured under high temperature stress and the two critical antioxidant enzymes were also significantly affected by high water temperature.The activities of SOD and CAT declined with the increasing water temperature.This study indicated that the temperature of 32 ℃ may be the upper limit for olive flounder,and the high water temperature has a significant effect on growth performance and activities of antioxidant enzymes of olive flounder.Our results would be good references for genetic breeding and healthy culture of olive flounder.
HTML   查看全文   下载PDF阅读器
关闭

手机扫一扫看