Gastrointestinal Parasites Study of Silvered Leaf-Monkey (Trachypithecus cristatus)

Lee, Chee How (2015) Gastrointestinal Parasites Study of Silvered Leaf-Monkey (Trachypithecus cristatus). [Final Year Project Report] (Unpublished)

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Abstract

The knowledge on endoparasites study of silvered leaf-monkeys (Trachypithecus cristatus) is currently limited. This study was aimed to survey and compare the prevalence and species diversity of gastrointestinal parasites in silvered leaf-monkeys at Bako National Park in Sarawak and Labuk Bay Proboscis Monkey Sanctuary in Sabah. A total of 41 fecal samples collected were examined using sodium nitrate flotation and normal sedimentation techniques. Four identified genera and two unidentified genera of nematodes were found in the fecal samples. Oesophagostomum sp. recorded the most (36.6%) prevalence of the nematodes, followed by Trichuris trichiura and Spirocerca sp. which recorded prevalence of 24.4% and 17.1%, respectively. Unidentified species, nematode larva 1, and nematode larva 2 had prevalence of 12.2%, 7.3%, and 7.3% respectively. The least prevalence of nematodes was Strongyloides sp. and nematode larva 3 with only 2.4%. The prevalence and species diversity of gastrointestinal parasites showed significant different between silvered leaf-monkeys at Bako National Park and Labuk Bay Proboscis Monkey Sanctuary, with p< 0.05. In conclusion, silvered leaf-monkeys in Bako National Park had higher species diversity of gastrointestinal parasites based on Shannon Index of diversity.

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