Prevalence and clinicopathological study of theileriosis in bovine in coastal areas of Orissa
Panda, S.K. | Sahu, Banamali | Ranjan, Rajeev | Acharya, A.P. | Rath, S.K.
Prevalence and clinico-pathological study of theileriosis in cattle in coastal area of Orissa was carried out from 2002 to 2006. Out of 886 cases 27% and 36% were found positive in blood smear examination from coastal belt and non-coastal areas, respectively. Out of total suspected cases, 24% of the male and 27% of the female were positive. The seasonal incidence of theileriosis was 23% in rain, 35% in summer and 22% in winter. Young animals were most susceptible. On haematological examinations, the haemoglobin concentration in all the animals varied between 2.2 to 17.0 g/dl in positive cases. TEC varied from 1 million to 5.8 million/cmm of blood. Differential leucocyte count in positive samples, for neutrophils ranged between 6 to 84%, for lymphocyte ranged between 14 to 88%. Histopathologically, kidney showed degenerative changes, Bowman's space distended and bowman's capsules were thickened with fibrous hyperplasia. Liver showed fibrosis in the portal tract, disruption of hepatic cords, dissociation of hepatocytes and Kupffer cell proliferation. Lungs revealed areas of emphysema, atelectasis and thickened alveolar wall, and pneumonic changes. Lymph node were enlarged and showed severe depletion of lymphocytes. Abomasum showed necrosed foci and punched out ulcers on mucosa, cellular infiltration into lamina propria and marked oedema of the sub-mucosa and muscular layer.
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