淮南市焦岗湖地区家鸭感染曲领棘缘吸虫新记录

Echinoparyphium recurvatum found in domestic duck＇ s cecum in the area round Huaihe River

目的了解淮南市焦岗湖地区家鸭感染曲领棘缘吸虫的情况。方法雌性家鸭30只，体重约2．5kg，18月龄，均购自焦岗湖地区沿岸。采用蠕虫学剖解法在家鸭肠管内分离吸虫成虫。染色后的虫体在镜下观察、测量后做种类鉴定，并计算家鸭曲领棘缘吸虫的感染率及其感染强度。结果在家鸭盲肠内检出的虫体小而薄，头领发达，有头棘45枚；阴茎囊发达，位于肠分支与腹吸盘之间；睾丸前后排列，边缘完整或略有缺刻，位于虫体中横线之后；卵黄腺自腹吸盘与卵巢之间开始分布，至体末端；子宫短，位于腹吸盘与卵巢之间。根据上述形态学的特点鉴定为曲领棘缘吸虫成虫。家鸭检出的曲领棘缘吸虫感染率为23．3％（7／30），感染强度为15—77条。结论淮南市焦岗湖地区沿岸居民饲养的家鸭体内存在曲领棘缘吸虫感染，应加强曲领棘缘吸虫的控制和宣传教育工作。

Objective To explore the infection status of Echinoparyphium recurvatum in domestic duck in Jiaoganghu region. Methods Thirty female domestic ducks, weighing 2.5 kg and aged 18 month, were purchased in the water areas of Jiaoganghu in Huaihe river basin. Adults were separated from the cecum of the domesticated ducks after dissection, and were morphologically identified under microscopy after staining, measured, and then the infection rate and infection intensity were calculated. Results Adults of Echinoparyphium recurvatum with 45-collar-spined were found in the cecum of domesticated ducks. Adults infection rate and infection intensity of this parasite was 23.3% （7/30）and 15-77, respectively. Conclusion Echinoparyphium recurvatum was detected in domestic ducks in Jiaoganghu region, and control of Echinopavyphium recurvatum should be reinforced.