Serological Studies on Neosporosis and Risk Factors Assessment among Bovines of Haryana, India

Background: Bovine neosporosis causes reproductive disorders and abortion among bovines resulting in production and economic loss in meat and dairy industries. The current study was done to know about the status of neosporosis among bovines of Haryana State. Methods: A total of 165 serum samples from bovines of Haryana, having history of reproductive disorders or abortion were screened for brucellosis as well as neosporosis by ELISA. Result: All the samples were found as serologically negative for brucellosis, but seropositivity of 33.94% was observed for neosporosis by the monoscreen antibody ELISA. A significantly higher seropositivity was found among buffaloes (53.85%) than cows (21%), having an Odds ratio of 4.38. All the seropositive animals were associated with abortion with a prevalence rate of 36.36%, while none of male animals were diagnosed as seropositive. Bovines of age group 3-5 years were more seropositive. The bovines which had an abortion at third trimester of pregnancy were more seropositive (43.05%) than first (18.75%) and second trimester (38%) aborted bovines. The multiparous animals exhibited higher seropositivity (41.07%) in comparison to primiparous (23.81%) bovines. The present study confirms the presence of N. caninum antibodies in bovine population of Haryana State.