Seroprevalence of Cattle Respiratory Viral Pathongens in Paranatinga, Mato Grosso State, Brazil

The Bovine Respiratory Diseases Complex (BRD) is characterized by respiratory tract infection and may be origin by viral, bacterial or through the association of both. BRD has been identified as one of the most important causes of morbidity and mortality of intensive breeding, especially in young animals, causing serious economic losses with the use of drugs for treatment of animals and significant losses of weight, directly affecting the meat production. The objective of this study was to verify the presence, through the serological and / or antigenic detection, of etiological agents that cause BRD in blood and nasal swab samples, such as Bovine Hespesvirus Type 1 (BoHV-1), Bovine Viral Diarrhea Virus, Parainfluenza Type 3 virus (BPI-3). There were evaluated 100 bulls from four properties in the municipality of Paranatinga sent for termination in a feedlot located in the municipality of Ipiranga do Norte, MT. According to the results obtained, a high prevalence of the viral agents studied was observed, mainly the BPI-3 and BoHV-1 viruses. The results indicate the circulation of agents that cause diseases of importance in beef cattle, thus requiring greater vigilance over them in feedlots.