The role of acute respiratory infections in the pathogenesis of distal limb infections in cattle

Abstract

Acute respiratory diseases of infectious etiology of cattle occupy the second place in the nosological picture after diseases of the digestive system and cause huge economic damage, which in the Russian Federation is estimated at several billion rubles annually. Very often, respiratory pathology in highly productive cows is associated with infections of the distal extremities, primarily with necrobacteriosis, streptococcosis and staphylococcosis, which cause significant economic damage by reducing the productivity of animals. An important pathogenetic factor affecting the development of diseases of the distal extremities in cattle (cattle) are infections of the respiratory tract. According to our long-term observations, all farms in which outbreaks of necrobacteriosis were recorded were unfavorable for respiratory infections of cattle, such as infectious rhinotracheitis (IRT), viral diarrhea (VD), parainfluenza type 3 (PG-3), respiratory syncytial infection (RSI), pasteurellosis, chlamydia, salmonellosis and others.