Haematological and biochemical indicators of tropical theileriosis diseased cattle in wilaya of Sétif (North East Algeria).

The authors investigated biochemical and haematological parameters in 40 healthy and 40 tropical theileriosis ( Theileria annulata ) clinically infected cattle in El Eulma region (North East Algeria). The mean haematological and biochemical parameters including the number of erythrocytes, haemoglobin, haematocrit, mean corpuscular volume, mean corpuscular haemoglobin concentration and mean corpuscular haemoglobin were estimated. The mean hematological and biochemical parameters including the number of leukocytes, erythrocytes, hemoglobin, hematocrit, glucose, albumin, total proteins decreased significantly ( p  = 0.005; 0.008; 0.03 0.048; 0.002; 0.027 and 0.018; respectively) in Montbéliard breed clinically infected with T. annulata . In all diseased animals, the concentration of total and direct bilirubin increased significantly ( p  < 0.001). In cross breed cattle, the erythrocytes, hemoglobin, hematocrit means decreased significantly ( p  = 0.027; 0.003 and <0.001, respectively). Two types of anemia were detected: a microcytic hypochromic anemia in Montbéliard breed clinically infected cattle and normocytic normochromic anemia in local and cross breed cattle. Tropical theileriosis induces severe biochemical and haematological alterations that should be taken into consideration by field veterinarians for both the diagnosis of the disease and its treatment.