射流式鱼泵胁迫下草鱼的应激响应

Stress reponse of grass carp after passing the jet fish pump

研究草鱼鱼种通过不同参数条件下(分为工况一、工况二、工况三、工况四)的射流式鱼泵后分别恢复0、0.5、1、6、24h,和过泵前相比其血清皮质醇(COR)、血糖(GLU)、乳酸脱氢酶(LDH)、总胆固醇(TC)、谷草转氨酶(AST)、谷丙转氨酶(ALT)、肌酐(CREA)以及呼吸频率(Respiratory rate)的变化情况,从应激和组织损伤的角度分析了该泵4个工况对试验草鱼的影响。结果发现,各工况试验草鱼血清COR、LDH、AST、ALT、CREA以及呼吸频率均呈现先升高后降低的变化规律,各工况试验草鱼血糖呈现先降低后升高的趋势,而各工况试验草鱼血清TC基本无变化。此外,各工况均出现掉鳞的情况,但未发现试验草鱼游泳异常,解剖后也未发现鱼鳔破裂以及内脏受损的情况。通过对比各工况试验结果,发现工况三对试验草鱼影响最小。

We studied the changes in the serum COR,GLU,LDH,TC,AST,ALT and CREA,as well as the respiratory rate of grass carp at 0h,0.5h,1h,6hand 24 hafter the grass carp passed the jet fish pump under 4operating conditions.In comparison to the fish who didn't pass the jet fish pump,fish who passed the pump under the 4operating conditions showed an increase in the serum COR,CREA,LDH,AST and ALT as well as the respiratory rate at the first recovery period and then those values decreased to control values gradually,while the serum GLU showed a decline after an initial increase.There was no significant difference in the serum TC in the present study.In addition,the descaling was observed in grass carp under the 4operating conditions.When fish passed the jet fish pump under the 4operation conditions,there were no rupture of swimming bladder and damage of viscera.Among the 4operating conditions,the third operating condition showed less influence on grass carp than the other operating conditions.