An Abattoir Survey of Liver and Lung hydatidosis in Northwest Iran

The livers and lungs of 730 cattle slaughtered at abattoir in Urmia between July and October 2012 were examined in routine meat inspection procedures for liver and lung hydatidosis. The infection rate of hydatidosis in cattle was 14.93%. The cysts were found in 8.67% of 366 cattle (<2 year old), in 15.92% of 245 cattle (between 2-4 years old) and in 26.05% of 119 cattle (between 4-6 years old). The infection rate was 16.89% in female cattle and 13.55% in male cattle. Out of the infected cattle, 79.82% had cysts in the lungs, 36.70% in the liver and 16.51% both in liver and lung. The maximum of cysts in the infected lungs and livers was respectively 69 and 33. The minimum of cysts in lungs and livers was 1. Besides, the means of cysts in the infected lungs and livers were respectively 6.10 and 2.43. Considering the prevalence rate, the results obtained from the statistical analysis did not show any significant difference in male and female sexes (p>0.05). However, a significant statistical relation was observed between the age of cattle and the prevalence rate (p<0.05) and the age between 4-6 years old showed the highest level of prevalence rate.