A study on prevalence of some helminthic infections of the liver and lungs among ruminants in abattoir of Fars province, Iran

Zoonotic helminths are often transmitted to humans through domestic animals. This retrospective study was performed to estimate the prevalence of some important zoonotic helminthic infections of the liver and lung including echinococcosis, fasciolosis and dicrocoeliasis in Kazerun and Shiraz abattoirs, Fars, Iran, during ۲۰۱۱-۲۰۱۳. A total of ۱۲۳۸۱ sheep, ۶۴۷۳ cattle, ۲۲۸۴۷ goats, ۶۶ camels, and ۱۰ buffalos were analyzed with regard to liver and lung helminthic infections including hydatidosis, fasciolosis, and dicrocoeliasis in Kazerun, during March ۲۰۱۱-January ۲۰۱۳. Moreover, ۱۲۱۱۰۰ sheep, ۲۳۵۱۵ cattle, ۸۱۲۹۳ goats, and ۶۹ camels were investigated for the mentioned infections in Shiraz abattoir during one year since March ۲۰۱۲. Kazerun abattoir: The prevalence rates of liver hydatid cysts were ۰.۸۶%, ۲.۱%, ۰.۷۶%, and ۱۵.۱%  in sheep, cattle, goats, and camels, respectively, whereas the prevalence rates of pulmonary hydatid cysts were ۰.۸۹%, ۲.۳۶%, ۰.۹%, and ۱۶.۶% in the mentioned animals, respectively. Fasciolosis was detected in ۰.۳۳%, ۱.۶۵%, and ۰.۲۴% of condemnation livers of sheep, cattle, and goats, respectively. However, dicrocoeliasis was just prevalent in ۰.۰۰۴% of goat livers. Shiraz abattoir: the prevalence rates of liver hydatid cysts were ۳.۴۴%, ۳.۱۲%, ۲.۹۴%, and ۲.۹% in slaughtered sheep, cattle, goats, and camels, respectively. In addition, ۴.۵۴%, ۴.۳۳%, ۴%, and ۴.۳۵% of the lung of the mentioned animals were infected with hydatid cysts, respectively. Prevalence rates of Fasciola spp in slaughtered sheep and cattle were ۲.۴۹% and ۱.۸۶%, respectively, and rate of D. dendriticum infection in slaughtered sheep, cattle, and goats were ۰.۰۲۶%, ۰.۹۱%, and ۴%, respectively. As compared with reports from other studies, it seems that Fars is among the low-endemic regions regarding this type of infection.

Keywords:

Zoonoses , Helminthes , Abattoir , Fars , Iran