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| A total 300 blood samples were randomly collected (150 crossbred and 150 local cattle) in three consecutive seasons (summer, rainy and winter) from four selected areas, namely Nasirabad, Patia, Bayezid and Jointika under Chittagong district of Bangladesh. The effects of topography, season, age and gender were tested in both crossbred and local cattle. The PCR was performed after consequence screening by light microscopy, which exhibited that 22 samples (14 Anaplasmaspp, 6 Babesia spp and 2 for mixed infections) were positive. The overall prevalence of haemoprotozoan diseases were 9.33% in crossbred and 5.33% in local cattle, among these babesiosis, anaplasmosis were recorded 2.66% and 6.00% in crossbred cattle and 1.33% and 3.33% in local cattle, respectively. The highest prevalence of anaplasmosis was found in Patia (9.33%) followed by Bayezid (4.00%), Nasirabad (2.67%) and Jointika (2.66%) and babesiosis was recorded in Bayezid (4.00%) followed by Jointika (2.66%) and Patia (1.33%). Among three seasons the highest prevalence of anaplasmosis was recorded 12.00% in crossbred cattle followed by 6.00% in local cattle in summer whereas babesiosis was highest in summer (4.00%) in crossbred cattle followed by 2.00% in local cattle. Prevalence of anaplasmosis increased significantly (P<0.05) with the increase of age in crossbred cattle. The highest prevalence of anaplasmosis was 13.72% and 6.94% in adult crossbred and local cattle, respectively. Occurrence of babesiosis was the highest in adult (5.88%) in crossbred than young (2.78%) in local cattle, respectively. It was revealed that haemoprotozoan diseases were more common in female cattle, among these highest prevalence of anaplasmosis was recorded (6.11%) in female crossbred cattle and (4.00%) in local cattle, respectively. Positive samples were analyzed by PCR, where 9 samples were amplified among these 4 samples (1.33%) of Babesia spp and 5 samples (1.67%) of Anaplasma spp.

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