الفهرس 
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Abstract
The present study was to investigate the incidence, hematological,
biochemical and molecular changes associated with theileriosis in camels). A total of
243 camels, 3-5 years old from both sexes were investigated, clinical examination
revealed there were no clinical signs but camels were either with or without tick’s
infestation. The results revealed that 75 (30.86%) camels were infected with Theileria
species in Geirnsa stained blood smears. Hyalomma dromedarii was identified as the
carrier tick of Theileria spp. Multinucleated sporoblast and free sporozoit (the
infective stage of Theileria) were observed in salivary gland smears from collecting
ticks. Macrocytic hypochromic anemia was recorded in Theileria infected group.
Leukocytosis associated with neutrophilia, eosinophilia and lymphopenia in Theileria
infected group. Hypoproteinemia, hypoalbuminemia, significant increase in total
globulins, a and v globulins, with significant decrease in ~ globulins and AlG ratio
were recorded in Theileria infected group. Hyperglycemia and marked increase in
serum aspartate aminotransferase activity, creatinine and high density lipoprotein
levels, whereas triglycerides and cholesterol concentration were decrease in Theileria
infected group. Application of peR assay was more sensitive and specific than
conventional diagnostic techniques. In conclusion, high incidence of camel
theileriosis was recorded in apparently healthy camels in Egypt. Hyalomma
dromedarii were common ticks which transmitted Theileria infection to camels.
Camels theileriosis caused by Theileria annulata greatly influenced the cellular and
biochemical constituents.