Studies on Epidemiology, Haematobiochemistry and Serosurveillance of Theileriosis in Crossbred Cattle
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Date
2013
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Publisher
Anand Agricultural University, Anand
Abstract
Haemoprotozoan diseases cause heavy losses to the livestock industry through
out the world. However, it is known that most of blood protozoan parasites cause
anemia by inducing erythrophagocytosis. Most of the haemoprotozoan parasites are
tick borne and is of great economic importance in Asia and has always been a
formidable barrier to the survival of exotic and crossbred cattle in India. Bovine
theileriosis has been reported as disease of major economic importance, as it cause
heavy losses due to mortality, decreased production and lowered working efficiency
of affected animals. Exotic and crossbred cattle are most susceptible to theileriosis.
Once infected, the animals remain carrier for life time, since organisms hide in
macrophage and lymphoid tissues. This compromises the immune system and the
animal is prone to a number of super infections. If affected animals are not treated
properly and efficiently, mortality rates become high. Theileriosis in Indian bovines is
mainly caused by Theileria annulata and the disease is known as bovine tropical
theileriosis. The chief vector responsible for transmission is Hyalomma anatolicum
anatolicum and other ticks species belonging to the said genera. The disease is
characterized by high fever, enlargement of superficial lymph node and anaemia
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Keywords
Veterinary Medicine, Study