近年来，寄生虫病对我区牛羊的危害日益突出。特别是胃肠道线虫、羊鼻蝇蚴及寄生在体外的蜱螨引起牛羊死亡，消瘦、生产指标下降，直接影响着我区畜牧业的健康发展。为了探讨一种对牛羊体内外寄生虫都有驱杀效果并具低毒、使用方便的药品，我们自1999年3月12日-4月3日在拉萨市 In recent years, parasites on the harms of cattle and sheep in our area has become increasingly prominent. In particular, gastrointestinal nematodes, sheep nasal larvae and parasitic in vitro mites cause sheep death, weight loss, decreased production indicators, a direct impact on the healthy development of animal husbandry in our region. In order to explore a kind of drugs that have the effect of killing and killing parasites both inside and outside the body of cattle and sheep with low toxicity and easy to use, we have been in Lhasa since March 12, 1999 to April 3