Abstract
BRDC causes pneumonia of cattle, due to which high morbidity and mortality, decreasing food intake and daily growth, and quality of carcasses is significantly reduced. Preventive application of cattle vaccination and treatment of diseased animals with therapeutic agents, with the aforementioned losses, leads to the fact that BRDC is the most expensive cattle disease worldwide. Given the complex etiology (the influence of more viral and bacterial agents), it is characteristic that if viral agents cause disease, the morbidity level is high and the mortality rate is lower. Cattle affected by bacterial infections have a sporadic morbidity and a higher mortality rate. There are a number of predisposing factors originating from the environment or hosts that have a negative impact on the health status of cattle. So, there are a number of challenges that must be solved in the future, with the aim of developing new technologies that would contribute to increasing animal resistance, eliminating risk factors and reducing exposure to pathogens.
Highlights
Bovine respiratory disease complex (BRDC) continues to be one of the most expensive syndromes in fattening and dairy cattle throughout the world
BRDC leads to huge economic losses due to high morbidity and mortality, weight loss, reduced food utilization, reduced quality of carcasses and extensive measures of prophylaxis and therapy (Edwards, 2010)
One of the main ways to combat the emergence of BRDC is the vaccination of cattle against the most common viral and bacterial agents (UrbanChmiel and Grooms, 2012)
Summary
Bovine respiratory disease complex (BRDC) continues to be one of the most expensive syndromes in fattening and dairy cattle throughout the world. The most common viruses that causes BRDC are bovine respiratory syncytial virus (BRSV), parainfluenza virus type 3 (PI3V), bovine herpes virus type 1 (BHV1) and bovine viral diarrhea virus (BVDV) (Bednarek et al, 2012). One of the main ways to combat the emergence of BRDC is the vaccination of cattle against the most common viral and bacterial agents (UrbanChmiel and Grooms, 2012).
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