OVERVIEW OF FASCIOLOSIS-AN ECONOMICALLY IMPORTANT DISEASE OF LIVESTOCK IN NEPAL

Fasciolosis is the most common animal disease and one of the important causes of deterioration in livestock productivity in Nepal. It is widespread throughout the country affecting all species of ruminants. Despite increased awareness of the disease and massive increase in the use of anthelmintics, there appears to be no impact on the prevalence of the disease in the last two decades. Failure to control the disease was mainly due to lack of information about its epidemiology in the country. In recent years, however, a substantial amount of information has become available to understand the environment-host-parasite interrelationships. Some control approaches based on these informations have been discussed in this paper.