绵羊混合感染捻转血矛线虫和美丽筒线虫的诊治

The Diagnosis and Treatment on the Sheep Mixed Infected with Haemonchus contortus and Gongylonema pulchrum

2008年11月以来河北北方学院动物科技学院病理实验室先后接到张家口坝上地区养羊户送来的以贫血、渐进性消瘦为主要特征的病羊,剖检发现其真胃内有捻转血矛线虫寄生,最多达2 120条。另在其食道黏膜内发现细长、乳白色的美丽筒线虫,共14条。漂浮法粪便检查时发现2种虫卵。一种虫卵内含16～32个胚细胞,卵壳薄,光滑稍带黄色,虫卵大小为(75～95)μm×(40～50)μm;另一种虫卵内含有幼虫,虫卵大小为(50～70)μm×(25～37)μm。经诊断为羊混合感染捻转血矛线虫和美丽筒线虫病。对羊群普遍用左旋咪唑片和丙硫咪唑口服驱虫,2周后羊群症状消失,病情得到控制。

Since November 2008,pathological laboratory received some sick sheep with the main symptoms of anemia and progressive angular from Zhangjiakou area.The necropsy results showed that a kind of nematode parasitized in the abomasums and the number was up to 2 120.Another kind of nematode was also found in the esophageal mucosa and the number was 14.Two kinds of parasitic ovum were found in the sheep faeces by floating method.One kind of the parasitic ovum contained 16～32 embryonic cells.It＇s ovi testa was thin,smooth and slightly yellow.The ovum size was（75～95）μm×（40～50）μm.Another kind of parasitic ovum with the size of（50～70）μm×（25～37）μm contained larva.Through the clinical symptoms,pathological changes and laboratory examination,it could be diagnosed that the sheep were mixed infected with Haemonchus contortus and Gongylonema pulchrum.The symptoms in the herd could disappear after two weeks when Levamisole and Albendazole were used.