黑白仰鼻猴肠道寄生虫感染调查

Investigation on Intestinal Parasite Infection of Rhinopithecus bieti

为了解黑白仰鼻猴野生种群的肠道寄生虫感染现状,对分布于云南塔城境内的一群90只个体的黑白仰鼻猴种群进行了粪便虫卵检查。共采集了225份样品,记录了粪便供体的性别、年龄、所在单元和采集时间,分别采用水洗过滤沉淀法、饱和盐水浮聚法和改良加藤氏厚涂片法进行检查。实验结果表明该猴群感染的寄生虫种类有灵长类肠道常见寄生虫毛首线虫Trichuris sp.,感染率在不同年龄段间存在显著差异;钩虫Ancylostoma sp.和结节线虫Oesophagostomum sp.在黑白仰鼻猴中的感染存在季节性,旱雨季差异性显著;同时粪便样品中还检出了少量的肝毛细线虫Capillaria hepatica和蛔虫Ascaris sp.。

To understand intestinal parasite infection of black-and-white snub-nosed monkey Rhinopithecus bieti, three methods （filter precipitate method, saturated brine flotation method, Kato＇s thick smear method） were employed to exam parasite eggs in fecal samples. A total of 225 feces samples were collected from a group （90 individuals, occurs at Tacheng, Weixi, Yunnan） of black-and-white snubnosed monkeys. Gender, unit, age and collecting time of each individual were recorded. The results showed that infection of Trichuris sp. was different between adult and juvenile ; the infection of Ancylostoma sp. and Oesophagostomum sp. were seasonally different, the highest infect rate was observed in raining season. Moreover, CapiUaria hepatica and Ascaris sp. were observed with low detection rate.