A research study was carried out on 1830 food animals included (556) camel, (598) cattle, (383) buffalo, (198) sheep and (95) goat which were examined during the detailed post mortem examination at Tokh and Benha abattoir, Qalubia governorate, Egypt from April 2012 to May 2013 to determine incidence and seasonal variation of hydatid cyst infestation. The obtained results indicated that the incidence of hydatidosis in slaughtered food animals during detailed post mortem examination ranged from April 2012 to May 2013 was 9.7% in camel, 1.83% in cattle, 2.34% in buffalo, 7.57% in sheep and 7.36% in goat. The incidence of hydatid cysts in organs of infested carcasses during detailed post mortem examination was in camel lung 83.3%, liver 16.6%, lung and liver 11.11% and spleen 5.55%. While incidence of Cysticercus dromedarii in camels slaughtered from April 2012 to May 2013 according to their age and sex was recorded. While the hearts of young female camels were 1.86% followed by old females 1.81%, old males 1.60% and young males 1.52%. Incidence of Cysticercus bovis in cattle and buffalo slaughtered from April 2012 to May 2013. Heart of old females 8.12% were more infested followed by young males 2.25%.
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