Transactions of the Royal Society of Tropical Medicine and Hygiene · 2013
Cystic echinococcosis in cattle slaughtered at Shashemanne Municipal Abattoir, south central Oromia, Ethiopia: prevalence, cyst distribution and fertility.
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Negash Kedir, Beyene Desta, Kumsa Bersissa
Аннотация
BACKGROUND: Cystic echinococcosis is one of the most widespread zoonoses, causing morbidity and mortality in humans and huge economic losses in livestock. It is caused by metacestodes of the tapeworm Echinococcus granulosus. The metacestodes cause hydatid cysts in the lungs, liver and other organs of intermediate hosts.
METHODS: A study was made from December 2010 through March 2011 to determine the prevalence, organ distribution and characteristics of hydatid cysts in cattle slaughtered at Shashemanne Municipal Abattoir in Oromia, Ethiopia. Antemortem examination of 384 cattle was followed by standard postmortem inspection of their internal organs including lungs, liver, kidneys, spleen and heart for the presence of hydatid cysts.
RESULTS: The overall prevalence of hydatid cysts recorded in cattle slaughtered at Shashemanne Municipal Abattoir was 49.5% (190/384). Hydatid cyst prevalence was significantly higher in cattle more than 7 years old compared with those aged 7 years or less, in male cattle compared with female cattle (51.9% vs 31.9%), and in cattle with a body condition score of lean or medium rather than fat (54.05% and 83.2% vs 22.9%). The greatest proportions of cysts were recorded in the lungs (71.6%) and liver (24.1%). Lungs and liver were more commonly infected (95.5%) than other organs. Of the cysts recorded, 15.9% were fertile, 71.7% sterile and 12.2% calcified. The percentage of fertile cysts in the lungs was higher than that in any other organ.
CONCLUSION: Our study showed widespread occurrence of cystic echinococcosis in cattle, which may have a role in the lifecycle of this serious zoonosis.
METHODS: A study was made from December 2010 through March 2011 to determine the prevalence, organ distribution and characteristics of hydatid cysts in cattle slaughtered at Shashemanne Municipal Abattoir in Oromia, Ethiopia. Antemortem examination of 384 cattle was followed by standard postmortem inspection of their internal organs including lungs, liver, kidneys, spleen and heart for the presence of hydatid cysts.
RESULTS: The overall prevalence of hydatid cysts recorded in cattle slaughtered at Shashemanne Municipal Abattoir was 49.5% (190/384). Hydatid cyst prevalence was significantly higher in cattle more than 7 years old compared with those aged 7 years or less, in male cattle compared with female cattle (51.9% vs 31.9%), and in cattle with a body condition score of lean or medium rather than fat (54.05% and 83.2% vs 22.9%). The greatest proportions of cysts were recorded in the lungs (71.6%) and liver (24.1%). Lungs and liver were more commonly infected (95.5%) than other organs. Of the cysts recorded, 15.9% were fertile, 71.7% sterile and 12.2% calcified. The percentage of fertile cysts in the lungs was higher than that in any other organ.
CONCLUSION: Our study showed widespread occurrence of cystic echinococcosis in cattle, which may have a role in the lifecycle of this serious zoonosis.