Prevalence of Ovine theileriosis in Northern Karnataka
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Authors
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S. Shantaveer Biradar
Ph.D. Scholar, Center of Advanced Faculty Training, Department of Parasitology, Veterinary College, KVAFSU Regional Campus, Hebbal, Bengaluru-560024
Keywords:
Stained blood smear, Prevalence, Theileriosis, Sheep, North KarnatakaAbstract
An epidemiological survey on ovine theileriosis was conducted in six districts of northern Karnataka, India. On examination of 525 (209 clinical and 316 healthy/tick infested) Giemsa stained thin blood smears of sheep, 107 (51.20%) and 129 (40.82%) sheep smear samples from clinical and healthy/tick infested flocks were found positive for Theileria organisms respectively, with an overall prevalence of 44.95% (236/525). The parasitemia ranged between 0.8 to 1.2 and 0.2 to 0.4 per cent in clinical and apparently healthy/tick infested sheep, respectively. The haemogram of Theileria infected sheep revealed severe anaemia with haemoglobin levels ranging between 2.3 to 4.6 g / dl. However, no significant (P< 0.05) difference was found between the age, gender, breed and district wise prevalence. The present study indicated that ovine theileriosis is an endemic disease in this study area and aids in understanding and implementation of measures to control ovine theileriosis in northern Karnataka.
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