新疆石河子地区绵羊消化道线虫感染调查

Investigation to Nematization in Sheep Gastrointestinal Tract in Shihezi

在石河子地区对绵羊消化道线虫感染状况进行了连续12个月的调查,结果显示,在被检绵羊消化道内共检出4科、7属、10种线虫,从检测结果可以看出经多年驱治,对绵羊消化道线虫的防治效果是卓有成效的,线虫感染率和感染强度与上世纪调查结果相比有显著下降;感染的优势虫种也发生了改变,上世纪80年代兵团垦区绵羊消化道线虫以血矛线虫、夏伯特线虫、毛首线虫等为主要虫种。我们此次调查的绵羊消化道线虫以细颈线虫和马歇尔线虫为主要虫种。分别以马歇尔线虫和细颈线虫为检测指标,成虫和虫卵检测的符合率马歇尔线虫检测符合率为85.36%。细颈线虫成检测符合率90.24%,利用粪便虫卵检测结果只能大致了解绵羊消化道线虫的感染状况。

An investigation to nematization in digestive tract of sheep lasted for 12 months in Shihezi was implemented, and it was indicated that 10 kinds of nematodes, belong to 4 families, 7 categories, were detected in sheep gastrointestinal tract,from which, it was found that the prevention and control of nematization was effective after several years' efforts. Compared with the investigation results in last century,the rate and intensity of nematization are going down. The infecting species is also changed. In 1980 s, the species mainly includes Haemonchus, Chabertia ovina and Trichocephalus in reclamation area of Corps,however, Nematodirus and Marshallagia are mainly found in this investigation. Take Nematodirus and Marshallagia as the index to test adult worms and worm eggs, the compliance rate of Marshallagia and Nematodirus is 85.36% and 90.24% respectively. Test the worm eggs in faeces can only learn the general status of nematization in sheep gastrointestinal tract.