Prevalência e fatores de risco para leptospirose, diarreia viral bovina (DVB) e rinotraqueíte infecciosa bovina (IBR) em bovinos e búfalos da Colômbia.

Abstract

One of the limiting factors of the productive efficiency of cattle and buffalo herds is related to the high prevalence of infectious diseases that affect reproduction. The aim of the present study was to determine the prevalence of anti-Leptospira antibodies and for bovine viral diarrhea virus and bovine herpesvirus type 1 in bovine and buffalo herds of Colombia. For this study, blood serum samples were collected from 1100 buffalo and 1000 cattle. The ELISA was used to detect antibodies against bovine viral diarrhea virus and bovine herpesvirus type and the microscopic agglutination technique for detection of anti-Leptospira antibodies including thirteen serovars for this analysis. The prevalence of anti-Leptospira antibodies, and for bovine viral diarrhea virus and bovine herpesvirus type 1 in bovine samples was positive in 16%, 39.7%, and 65% of animals, respectively, while in buffalo samples. the positivity was 18.7%, 27.5% and 51.5%, respectively. Exposure of cattle and buffaloes to bovine herpesvirus type 1 was positively associated with age (<.0001). The seropositivity of cattle for bovine viral diarrhea virus and bovine herpesvirus type 1 was more prevalent in male animals (p = <0.05). The association with risk factors has identified that routine management activities such as embryo transfer, milking, and needle reuse, as well as the presence of other animal species such as cats and rodents are factors that favor the positivity of a herd. bovine viral diarrhea virus and bovine herpesvirus type 1. No statistically significant risk factors were identified for the presence of Leptospira spp.