Gastrointestinal parasites of captive and free range non-human primates in savanna zone of Nigeria

Abstract

Primates being reservoirs of parasites that cause major problems to humans, livestock and under stressful conditions to themselves is a major concern to wildlife conservation, our study compared the gastrointestinal parasites of some Non-human Primates at University of Ilorin Zoological Garden (Unilorin Zoo) and Kainji Lake National Park (KLNP), Nigeria in order to determine the level of their prevalence and possibility of infection on tourists visiting the sites. Species sampled were restricted to those common to both sites; Papio anubis, Erythrocebus patas and Chlorocebus aethiops tantalus. A total of 128 faecal samples were screened from apparent healthy individuals. Samples were processed using sedimentation, sugar floatation technique, Stoll's dilution technique, cultured and infective larvae were recovered using Baermann technique.110 (85.7%) samples were positive for infestation of at least one eggs. Among the positive samples were three species of nematodes; Strongyloides spp., Ascaris spp., Ancyclostoma spp. Primates on free-range had higher prevalence of infection. However, under both conditions, there is no significant difference in the prevalence and intensity of parasites harboured over seasonst (4) = 1.968, p =0.120).