Biochemical, Hematological studies in cattle naturally infected with Theileria annulata

The aim of the present study dealt with biochemical and hematological changes in cattle which presented to the Azad clinic of veterinary school in Urmia during the period between Dec 2008 to January 2012. A total of 985 cattle with positive theileriosis were examined. Data were collected on hematological conditions of the cattle. Ages of these slaughtered buffaloes ranged from 6 to 9 years, (79%) males and (21%) females. We observed a significant increase in all hematologic parameters including hemoglobin and hematocrit levels and WBC, platelet and RBC counts in newborns delivered spontaneously (p<0.001). The lymphocyte counts were similar in two groups. Male infants and newborns with higher gestational age showed a higher hemoglobin and hematocrit levels. Increased parity and gravidity correlated with a decrease in all hematological values of umbilical vein blood except of lymphocyte count (p<0.001). Prolonged duration of first and second stage was associated with higher mean leukocyte, neutrophil, platelet, hemoglobin and hematocrit values .Biochemical studies showed increase in activity of alanine amino transferase, aspartate amino transferase, total bilirubin, blood urea nitrogen and icterus index, with decrease in total serumprotein.