Abstract

The levels of infection by hydatid cyst, fasciolosis and cysticercosis of ruminants liver were compared base on their relationship with age, sex, season and type of the livestocks in Darab county's slaughterhouse, south of Iran. A total of 2675 livestock, 2029 (%75.9) goats and yeanlings, and 646 (%24.1) sheep and lambs, were examined. The infection rates for hydatid cyst, fasciola, and cysticercus were found %9.8, %6.7, and %5.9, respectively. The high infection rates for hydatid cyst, fasciola and cysticercus were found in sheep (12.2%, 11.1% and 8.4%, respectively). The female animals showed the higher infection rates than male animals in entire studied pathogens. The excessive prevalence of the infection was found in the older animals than the youngers. The prevalence rate of this infection was higher in spring than winter semester. The results of this study showed  significant differences between the prevalence of hydatid cysts, fasciola and cysticercus with type, sex, age and season (P<0.05). The infection rates of zoonotic parasites in tissue were average. According to economic losses due to animal mortality, discarding the carcasses, the life cycle, and risks for transmission to human, a comprehensive control of these parasites were recommended.