| Abstract: |
Two thousand buffaloes of both sexes and aged from 7 days to 10 years were examined at Cairo, Mit Ghamr, El-Wady EL-Gadid and Zagazig abattoirs beside the Clinics of the faculties of veterinary medicine, Cairo and Zagazig Universities, Mahalat Mousa Stud buffalo breeding and El-Marg, during the period from 1998 - 2001 todetect the parasitic lesions in the different organs, and to look for theblood parasites. Specimens were collected from the liver, esophagus,intestine, rumen, abomasum, spleen lymph nodes lungs skeletal muscles, heart and skin of 92 animals and fixed in 10% neutral buffered formalin. Five micron thick paraffin sections were prepared, stained with hematoxyline and eosin, Van-Giesons, Giemsa andthen examined microscopically. Blood smears were prepared from 50buffaloes and stained with Giemsa to look for the blood parasites.The obtained results, in this work, were classified into protozoalinfections (Sarcocystosis ”43.50/0” Coccidiosis ”3.25%” and theileriasis”20%”). Sarcocystosis showed macro cysts which appeared as milkwhite ellipsoid cysts embedded in the muscular tissues of theesophagus, peripharyngeal and perilaryngeal musculature beside themyocardium and the skeletal muscles. Microscopically, the macro cystsand microcysts of sarcocysts appeared in muscle fibers of the infectedtissues. No evidence of inflammation was induced by the intact sarcocysts, The coccidiosis-infected small intestine was generally mild.Macroscopically, it showed congestion beside thickened mucosa.
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