PREVALENCE OF OVINE BRUCELLOSIS IN BIDAR DISTRICT
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Date
2023
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KARNATAKA VETERINARY, ANIMAL AND FISHERIES SCIENCES UNIVERSITY, BIDAR
Abstract
The present study entitled “Prevalence of ovine brucellosis in Bidar district” was
conducted during September 2022 to January 2023 to determine the prevalence of
brucellosis in sheep by using different serological tests viz., RBPT, STAT and i-ELISA,
comparative evaluation of the above mentioned serological tests and to know the
zoonotic importance of brucellosis. A total of 225 sheep serum samples were screened
using RBPT, STAT and i-ELISA to diagnose the Brucella-specific antibodies and 14.7
per cent, 16.4 per cent and 31.1 per cent were the prevalence rates respectively.
Prevalence was higher in sheep of age group 2.1-4 years (33.3%) followed by 0-2 years
(29.2%) and >4 years (27.3%). Rams (41.7%) were highly affected when compared to
ewes (29.1%). Female sheep with a history of reproductive disorders had a higher
prevalence of 64.9 per cent than sheep without a history of reproductive disorders
(20.4%). The sensitivity and specificity of RBPT and STAT were 47.1 per cent and 100
per cent; 52.9 per cent and 100 per cent respectively. A total of 21 blood samples were
collected from animal attendants and screened by RBPT, STAT and IgG ELISA and
found 9.5 per cent, 4.8 per cent and 38.1 per cent prevalence respectively and none of the
samples were positive with IgM ELISA. In conclusion, i-ELISA test is a more accurate
and sensitive diagnostic tool than other tests for the diagnosis of ovine brucellosis.