摘要：The aim of this study was to investigate the variations of some blood biochemicals in crossbred cattle naturally infected with Theileria annulata in order to better understand of treating diseased animals. Serum biochemical parameters were studied in adult crossbred cattle naturally infected with Theileria annulata in Iran. One hundred cows affected with tropical theileriosis were studied and compared with 50 clinically healthy cows. Cattle clinically infected with T. annulata had significantly lower serum total protein, calcium, cholesterol and triglycerides concentrations and significantly higher alkaline phosphatase (ALP), alanine aminotransferase (ALT) and aspartate aminotransferase (AST) activity, phosphorus, sodium, potassium, bilirubin (direct and indirect) and Blood Urea Nitrogen (BUN) concentrations than the healthy cattle.
