Investigation Of The Parasite Infection In The Digestive Tract Of Herbivorous Wildlifes And Deworming Test

Parasite infection in wild animals, especially herbivorous wildlife is very common, very harmful to them. To prevent and treat parasitic diseases of wildlife, this subject was studied from the following aspects.By natural sedimentation method and saturated salt flotation method combined with stool culture, a survey on the infection of intestinal parasites in herbivorous animals at a wildlife park of Guangzhou City was conducted. Among 1528 stool samples from 30 kinds of plant-eating wildlifes inspected, positive rate was 42.08%. The positive rates for strongylid, trichuris, Moniezia, coccidian and bot fly infections were 41.43%, 0.2%, 0.2%,0.26% respectively. Strongylid eggs in 12 species of animal stool were detected, no seasonal. By stool culture, 5 species of larvae have been detected. They were Haemonchus contortus, Cooperia curticei, Bunostomum sp., Ostertagia sp. and Cooperia oncophora.Giraffes were mainly infected by H. contortus. Its eggs were detected in 59 of 66 giraffes,with positive rate of 86.36%, no seasonality.Then, the deworming experiment was carried out with three drugs such as levamisole hydrochloride, albendazole and ivermectin. Results showed that the decreasing rate of eggs was 100%?80%?45%, respectively. The disappearance ratio of eggs was 100%, 80%, 45%,respectively. The results indicate that levamisole hydrochloride had the best deworming effect. Levamisole hydrochloride was further tested in another 3 groups, the reducing rate of eggs was all 100%. The disappearance ratio of eggs was 100%, 63%, 70%, respectively.Results indicate that the first use of levamisole hydrochloride can obtain remarkable deworming effect in giraffes, so it is worth expanding for use.