Management of bovine brucellosis in organized dairy herds through the identification of risk factors: A cross-sectional study from Karnataka, India

Background and Aim: Brucellosis is an infectious disease caused by Brucella species. This study aimed to identify the risk factors associated with bovine brucellosis seropositivity in organized dairy farms control unvaccinated adult herds Karnataka, India. Materials Methods: In total, 3610 samples (3221 cattle 389 buffaloes) were subjected parallel testing using Rose Bengal plate test protein G-based enzyme-linked immunosorbent assay, followed analyses of animal- farm-level epidemiological datasets factors. Results: The apparent prevalence at animal level was higher buffaloes (8.2%, 95% confidence interval [CI] = 5.9–11.4) than (6.1%, CI 5.3–7.0). a multivariable logistic model, animals calved 3–5 times (odds ratio [OR] 2.22, 1.50–3.1, reference [ref]: <2 times); history abortion (OR 54.73, 33.66–89.02), repeat breeding 19.46, 11.72–32.25), placental retention 13.94, 4.92–39.42, ref: no clinical signs); dogs on 2.55, 1.48–4.40, absence dogs); disposal aborted fetus open fields 4.97, 1.93–12.84) water bodies buried); purchase from other 6.46, 1.01–41.67, government farms); hand milking 1.98, 1.02–10.0, machine milking); use monthly veterinary services 3.45, 1.28–9.29, weekly services) considered significant for (p < 0.01). Conclusion: identified that or abortion/repeat breeding/placental retention, fields/water as potential brucellosis. These should be controlled through implementation best practices reduce burden farms. Keywords: brucellosis, buffalo, cattle, India, factors, seroprevalence.