Study on Zoonotic Metacestodes of Cattle Slaughtered at Bahir Dar Municipal Abattoir, Northwest Ethiopia

摘要

A cross sectional study was conducted from November 2010 to March 2011 to estimate theprevalence of the major metacestodes of cattle slaughtered at Bahir Dar municipal abattoir. Out of 465 randomlyselected slaughtered cattle, 12 (2.58%) and 148 (31.8%) were infected with Cysticercus bovis and Hydatid cyst,respectively. The prevalence of Cysticercus bovis was significantly different between castrated and uncastratedcattle. However, there was no significant difference for the prevalence of Cysticercus bovis among the differentorigins and management systems (p>0.05). There was also no marked difference in the prevalence of hydatidcyst in cattle among the different origins (p>0.05). In contrast, the difference in the prevalence of the hydatidcyst between the different management system was found to be statistically significant (p<0.05). Similarly, theprevalence of hydatid cyst was statistically significant between castrated and uncastrated cattle (p<0.05).Regarding organ distribution, tongue and masseter muscle were the most frequently infected organ withCysticercus bovis. Whereas, lungs took the highest proportion among the other organs infected with hydatidcyst. The viability test of the metacestodes of cattle showed that 33.9 % of Cysticrecus bovis and 20% of theexamined hydatid cyst were viable. In a nut shell, the finding of the present study reflects a visible reductionin the prevalence of Cysticercus bovis from the previous years and still a higher prevalence in hydatid cyst.Therefore, serious attention should be given by various stake holders to break the life cycle of bothmetacestodes and hence reduce their impact on the public health.