Clinical and epizootological studies of cattle for parainfluenza-3

The article presents the results of clinical-epizootologic and laboratory studies of respiratory diseases of cattle in the territory of the Republic of Tatarstan. It is shown that respiratory disease viruses of parainfluenza-3, infectious rhinotracheitis, adenovirus, respiratory syncytial infection and viral diarrhea circulate in cattle farms of the Republic of Tatarstan. The dominant share in the general etiology of respiratory diseases of cattle is occupied by PG-3 virus. The prospects of molecular genetic analysis of PG-3 virus genomes for more accurate identification are demonstrated.