BACKGROUND Nasalis larvatus are well-known attraction for tourists in the mangrove forest of Bako National Park (BNP). Little is known regarding the infestation of helminth parasites in proboscis monkeys. Therefore, the objectives of this study are to determine the prevalence species of major helminth parasites of public health importance in proboscis monkeys in BNP. METHODS A total of 65 faecal samples screened for helminth parasites via sodium nitrate floatation and faecal sedimentation techniques. RESULTS A total of 14 helminth parasite species comprising of eight genera of nematodes, two species of cestodes and two trematodes were identified. Eggs of Trichuris trichiura were the most frequently encountered in proboscis monkeys. CONCLUSION This is the first survey on the fauna of helminth parasites of proboscis monkeys living in mangrove forests, and therefore, it implies the important baseline information that increases our current knowledge for future research regarding parasite-host ecology in primates.

中文翻译：

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蠕虫寄生虫在婆罗洲的特有灵长类野生象鼻猴（Nasalis larvatus）中发生。

背景技术在Bako国家公园（BNP）的红树林中，鼻涕幼虫是游客的著名景点。关于长鼻猴的蠕虫寄生虫的侵害知之甚少。因此，本研究的目的是确定在BNP的长鼻猴中具有公共卫生重要性的主要蠕虫寄生虫的流行种类。方法通过硝酸钠浮选和粪便沉降技术，共筛查了65个粪便样本中的寄生虫。结果共鉴定出14种寄生虫，其中包括8个线虫，2个two虫和2个线虫。长鼻pro的卵是长鼻猴中最常见的卵。