四川鸟蛇线虫的生活史和形态学研究

鸟蛇线虫（鸭丝虫）病是严重损害幼鸭的疾病，我省广泛流行于岷江流域，其病原为四川鸟蛇线虫，本文报道了幼虫1～3期形态特征，又在我国首次发现雄虫，与本属其它5个种的雄虫不同，详细描述了雌虫形态，以8个种的剑水蚤作为中间宿主，整个发育过程共需36～40天，通过生活史和形态学研究，确定此虫为一新种。

STUDIES ON THE LIFE HISTORY AND MORPHOLOGY OF AVIOSERPENS SICHU ANENSIS

The Avioserpens infection is seriously harmful to ducklings, and the epidemic area is very wide along the Minjiang River Basin in Sichuan Province. The morbidity caused by Avioserpens sichuanensis (Li et al.,1964) is high. 58.90%, and the mortality is 20. 12%.This paper reports the characters of the larvae of 1~3 stages and the adult female. The male is discovered for the first time in China and different from other five species of the genus. 8species of cyclops serve as the intermediate hosts. The development of the entire life cycle needs 36~40 days. Through the studies of life history and morphology. this species is confirmed to be a new one.