In addition, the relationships among sexes of calves, calving number and infestation rate and mixed-infestation of the other parasites were described in detail.

 
  • 轻度感染的占阳性数的18.;18%25。此外;本文还对犊牛不同性别、母牛胎次与感染率的关系以及与其他寄生虫混合感染等情况进行了详细的记述。
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