Prevalence and intensity of intestinal helminths in carnivores and primates at Vakilabad Zoo in Mashhad, Iran

This study was carried out to identify intestinal parasitic helminth infection in carnivores and primates at Vakilabad Zoo in Mashhad. In a cross-sectional study from June 2012 to September 2012, a total of 47 fresh faecal samples were collected and examined using sedimentation and flotation tests and the McMaster egg counting technique. Amongst the infected animals, both carnivores and primates demonstrated multiple infections with more than one helminth parasite. The genera detected in carnivores were Toxocara (75 %), Toxascaris (90.6), Ancylostoma (81.25 %), Strongyloides (68.75 %) and Taenia (56.25 %). In carnivores, African lions had the highest mean intensity of parasitic infection (eggs per gram of faeces (EPG) = 134.25), and brown bears had the lowest (EPG = 0.5). All primates were infected with Hymenolepis and then Ancylostoma (66.66 %) and Strongyloides (4 %). Asian monkeys had the highest mean intensity of parasitic infection (EPG = 2.5) and the spider monkey the lowest (EPG = 0.71). In conclusion, regular monitoring of parasitic disease in zoos is necessary. Infections can be controlled by using suitable anti-helminthic therapy and management procedures.