Viral respiratory infections of cattle in Vojvodina Province [Serbia]
2012
Bugarski, D., Scientific Veterinary Institute Novi Sad, Novi Sad (Serbia) | Lazić, S., Scientific Veterinary Institute Novi Sad, Novi Sad (Serbia) | Boboš, S., Faculty of Agriculture, Novi Sad (Serbia) | Milanov, D., Scientific Veterinary Institute Novi Sad, Novi Sad (Serbia) | Petrović, T., Scientific Veterinary Institute Novi Sad, Novi Sad (Serbia)
Over the years the study of etiology of bovine respiratory infections was conducted prevalence survey of some viral infections in the populations of catte in Vojvodina Province (Serbia). BRSV is the most frequently identified agent of bronchopneumonia in feedlots, followed by BVDV, Pi-3 and the rarest one found was BHV-1. On the dairy farms, in the case of severe bronchopneumonia among older animals, the most commontly isolated was BHV-1. Regularly, these outbreaks appeared after mixing animals from different herds, weather the infection was found only in newly acquired animals or exclusively in animals that were previously in the herd. Serological tests showed a different prevalence of individual viruses in different herds, but also within the same herd, depending on age groups. According to this study, the highest seroprevalence among calves up to one year old was for Pi-3 virus BRSV and BVDV. BHV-1 seroprevalence increases after coming into contact with older animals (cows at milking). Each of these viruses has its own characteristics in terms of epizootic characteristics and according to them it is possible to set up infection control programs, depending on the situation and needs in the herd. Immunoprophylaxis is one of the measures and in the case of infection with BHV-1 and BVDV in dairy farms their eradication should be the ultimate goal.
显示更多 [+] 显示较少 [-]