伊维菌素微量给药杀灭怀孕母牛体内蛔虫幼虫效果观察

Effect of Ivermectin Microdose on Ascaris Larvae in Pregnant Cows

中文关键词: 怀孕母牛  伊维菌素  微量给药  防犊牛感染  蛔虫病  

英文关键词: pregnant cow  Ivermectin  Micro-administration  Prevent calf infection  Ascariasis  

中文摘要:

      为探索伊维菌素微量给药，杀灭母牛体内感染的蛔虫幼虫，以达到保护犊牛，使之免遭感染的目的，选感染蛔虫幼虫的怀孕母牛56头，随机分为两组，对照组不给药,试验组在母牛怀孕238—245d时，用伊维菌素以20μg/kg.bw剂量，皮下注射。经对两组母牛所产犊牛调查，对照组所产28头犊牛全部感染蛔虫，试验组产的犊牛有3头感染，25头未遭感染。本次试验的结果表明，用伊维菌素微量给药，杀灭母牛体内感染的蛔虫幼虫，对犊牛的保护率为89.29%（差异极显著P<0.01）。结论：采用此法预防犊牛感染蛔虫是有效的。

英文摘要:

      56 pregnant cows infected with Ascaris lumbricoides were randomly divided into two groups, the control group was not given the drug, and the control group was not given the drug, in order to protect the calves from infection, 56 pregnant cows infected with Ascaris lumbricoides were randomly divided into two groups, in the experimental group, 20 G KG.BW OF IVERMECTIN was injected subcutaneously at 238 —245 d after pregnancy. The results showed that 28 calves in the control group were infected with Ascaris Lumbricoides, 3 calves in the experimental group were infected and 25 calves were not infected. The results of this experiment showed that the protective rate of killing ascaris larvae infected by cow with Ivermectin was 89.29% (P & LT; 0.01) . Conclusion: This method is effective to prevent the infection of Ascaris lumbricoides in calves.