The aim of the present study was to determine the prevalence, organ distribution, morphological characters and
economic importance of Cysticercus ovis and Cysticercus tenuicollis in sheep and goats. A total of 669 sheep
and 484goats slaughtered at Aswan Slaughterhouse were carefully examined for these metacestodes. Cysticercus
ovis was detected (1.94%) from slaughtered sheep. Cysticercus tenuicollis was found (13.3%) in sheep and
(24.2%) in goats. The prevalence of both C.ovis and C.tenuicollis was higher in females than males and their
prevalence was higher in older animals compared to the younger ones. For Cysticercus ovis, the highest infection
was found in spring while the highest seasonal infection rate of Cysticercus tenuicollis in slaughtered sheep and
goats was noted in autumn season. The infection with C.ovis was only found in the heart, while C.tenuicollis in
slaughtered sheep and goats was found mainly in the omentum. These results suggest that the high prevalence of
the metacestodes infection in this area is a great concern for both medical and veterinary authorities to design
therapeutic and preventive programs to overcome this problem.