Vol. 11, Special Issue 7 (2022)

Author(s):
Shivakumar V, Vivek R Kasaralikar, Naveenkumar GS, Shivakumar M, Ramesh PT, Santhosh CR and Upendra HA

Abstract:
The present work has been carried out to study the clinico-pathological evaluation of Oriental theileriosis in crossbred cattle. Out of 100 suspected clinical samples, 54 samples were exclusively found positive for Theileria orientalis by using blood smear examination and polymerase chain reaction. Infected cattle have shown clinical signs like anorexia, reduced milk yield, pale conjuctival mucus membrane, lymphnode enlargement, severe tick infestation. There was significant increase in physiological parameters such as temperature, respiratory rate and heart rate in infected animals. Blood samples collected from positive animals were subjected to estimation of haemato-biochemical parameters. Haematological analysis revealed significant decrease in haemoglobin, total erythrocyte count (TEC), packed cell volume (PCV) and non-significant changes were noticed in erythrocytic indices such as mean corpuscular volume (MCV), mean corpuscular haemoglobin (MCH) and mean corpuscular haemoglobin concentration (MCHC). There was also slight decrease in leucocyte count with neutrophilia, lymphocytopenia and eosinophilia. Biochemical analysis revealed significant decrease in blood glucose level, total protein, albumin, globulin, cholesterol concentration and significant increase in blood urea nitrogen level (BUN), creatinine, alanine amino transferase (ALT), aspartate amino transferase (AST), total bilirubin and direct bilirubin in T. orientalis infected animals.