文章摘要
刘小玲.池养黄颡鱼运输应激后在实验循环系统中的恢复和适应过程[J].水产学报,2006,30(4):495~501
池养黄颡鱼运输应激后在实验循环系统中的恢复和适应过程
Recovery of earth pond reared Pelteobagrus fulvidraco from transport stress in acclimatization of laboratory system
投稿时间:2008-05-29  修订日期:2008-05-29
DOI:10.3724/SP.J.00001
中文关键词: 黄颡鱼  运输应激  恢复
英文关键词: Pelteobagrus fulvidraco  transport stress  recovery
基金项目:长江水产研究所农业部淡水鱼类资源与生物技术重点开放实验室开放课题(实2001-01)
作者单位E-mail
刘小玲 华中农业大学水产学院 liuxl@mail.hzau.edu.cn 
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中文摘要:
      本文将土池养殖的黄颡鱼成鱼运往室内实验循环系统驯养,并对鱼的摄食及鱼对日常管理活动的反应、血液皮质醇和血糖、外周血红细胞数量、外周血白细胞百分比和吞噬功能进行了35 d的观察或监测。运输后的黄颡鱼在最初4~7 d内,明显的行为变化是停止摄食。所有的鱼从第8天开始恢复了摄食,从第15天开始适应了日常管理活动。血液皮质醇和血糖浓度在刚刚运抵实验循环系统(0 d)及驯养1、2、3 d的鱼体内显著升高,至第7天已显著下降,并在第21、28、35天稳定在低水平上。外周血红细胞数量没有显著变化。与第21、28、35天外周血白细胞的各参数值相比,淋巴细胞百分比在第3、7天显著减少,嗜中粒细胞百分比在0、1、2、3天显著升高,吞噬细胞吞噬百分比和吞噬指数在第7、14天显著降低。以上结果显示(1)运输使黄颡鱼成鱼产生典型的应激反应,(2)运输应激导致黄颡鱼成鱼外周血淋巴细胞和嗜中粒细胞百分比的显著改变和外周血白细胞吞噬功能的抑制,(3)运输应激后的池养黄颡鱼成鱼在本文使用的实验循环系统中充分恢复和驯化所需的最少时间是3周。
英文摘要:
      Earth pond reared adult yellow catfish (Pelteobagrus fulvidraco R.) were transported to the indoor laboratory recycle system. Feeding and responsiveness to daily management, blood cortisol and glucose, percentage and phagocytic function of circulating leukocytes of the fish were monitored immediately after transport (day 0) and in acclimatization of the laboratory system for a period of 35 days. Cessation of feeding was apparent during the first 4 to 7 days after transport. All fish resumed feeding by day 8 and adapted to daily management by day 15. Blood cortisol and glucose concentrat ions were significantly high at day 0, 1, 2 and 3. Elevated blood cortisol and glucose significantly decreased by day 7 and maintained at low levels at day 21, 28 and 35. No significant differences were found in circulating erythrocyte numbers. Compared to values of each parameter for circulating leukocytes at day 21, 28 and 35, lymphocytopenia was found at day 3 and 7, neutrophilia was detected at day 0, 1, 2 and 3, significantly decreased phagocytosis and phagocytic index of peripheral leukocytes were found at day 7 and 14. The results of the present study indicate (1) that transport induced characteristic stress responses in the adult yellow catfish, (2) that transport resulted in significant alterations in the percentage of circulating lymphocytes and neutrophils and suppression in the phagocytic function of circulating leukocytes in the adult yellow catfish, (3) that a minimum of three weeks needed for the earth pond reared adult yellow catfish to completely recover from transport stress in acclimatization of the laboratory system.
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