新疆野生盘羊羊鼻蝇幼虫形态学鉴定

Morphological Identification of Oestrus Ovis Larvae from Wild Ovis Ammon

对两只因消瘦、呼吸困难死亡盘羊进行剖解发现,鼻腔及其鼻窦内有大量的疑似羊鼻蝇幼虫。对该幼虫进行眼观和解剖显微镜下观察,并与狂蝇属、喉蝇属和鼻狂蝇属的检索特征进行比对,确定为羊鼻蝇三期幼虫,初步诊断盘羊的死亡与羊鼻蝇的感染有关。

A large number of suspected Oestrus ovis larvae were found in the nasal cavity and its sinus in pathological anatomy of 2 wild Ovis ammon which died of emaciation and difficulty in breathing. They were identified as third larvae of Oestrus ovis when observated under the nake eyes as well as a dissecting microscope, comparing with keys of retrieval features of Oestrus, Rhinoestrus and Cephalopina, and the death of Ovis ammon was referred to infection of Oestrus ovis larvae.