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本文比较了薄涂片法和透明法的虫卵回收率。结果表明,在三种虫卵梯度,薄涂片法的虫卵回收率,分别为透明法的18、4.2和3.5倍,前者的变异系数明显低于后者;现场检查34头孵化阳性黄牛的结果也证实薄涂片法优于透明法。薄涂片法检查半量粪渣(制6张涂片)的虫卵估计值和标准差与全量粪渣结果相似,可以代替全量粪渣检查。在感染度较高的地区,可以抽样检查1/4粪渣,制3张涂片检查,从而减少工作量。
This article compared the thin smear method and the transparent method of egg recovery. The results showed that the egg recovery rates of the three kinds of eggs by gradient and thin smear method were 18, 4.2 and 3.5 times of those of the transparent method, respectively. The coefficient of variation of the former was obviously lower than the latter. On the spot, 34 hatching positive cattle The results also confirm that the thin smear method is superior to the clear method. Thin smear method to check half the amount of fecal residue (six smears) of eggs estimated value and standard deviation of the full amount of fecal residue results, you can replace the full amount of fecal residue inspection. In areas with high prevalence, 1/4 slags can be sampled for sampling and 3 smears can be checked, reducing the workload.