Prevalence and associated risk factors of cysticechinococcosis in pigs slaughtered at Addis Ababa abattoir enterprise.

Abstract

to determine the prevalence and associated risk factors of cystic echinococcosis in pig slaughtered at Addis Ababa abattoir enterprise, central part of Ethiopia. A total of 251 pigs were randomly sampled and routine meat inspection procedure was employed to detect the presence of hydatid cyst in the visceral organs (lung, liver, spleen and kidney), where 25 (9.96%) pigs were positive. Analysis of risk factors for occurrence of the disease revealed that there was statistically significant variation (P<0.05) in swine with different body condition scores and age groups. However, significant variation was not observed (P>0.05) across different sex and origin. Prevalence of distribution of hydatid cyst in different organs from total examined swine were 3.59%, 3.19%, 1.99%, 0.80%, 0.40%, for lungs and livers, livers, lungs, spleens and kidney respectively. In this study, the liver was found to be the most predominantly affected organ (6.77%) followed by the lungs (5.58%), spleen (0.80%) and the least affected organ was kidney (0.40%). As regards size of the cyst from total infected organs, organ with small sized cysts had the highest percentage (67.6%), followed by medium sized cysts (20.6%) and large sized cysts (11.8%). Livers (44.1%) were predominant organ infected with small cyst size while spleen (5.9%) and kidney (2.9%) have only small cyst size. Lungs (14.7%) and liver (5.9%) were infected with medium cyst size while only lungs (11.8%) have large cyst size. From the total of 34 (100%) affected organs, only 4 (11.8%) lungs have more than or equal to three cyst numbers while remaining 30 (88.2 %) affected organs were with less than three cyst numbers.