|Step, D - OKLAHOMA STATE UNIVERSITY|
|Fulton, Robert - OKLAHOMA STATE UNIVERSITY|
|Krehbiel, Clinton - OKLAHOMA STATE UNIVERSITY|
Submitted to: Southwest Veterinary
Publication Type: Proceedings
Publication Acceptance Date: October 2, 2008
Publication Date: October 2, 2008
Citation: Step, D.L., Fulton, R.W., Ridpath, J.F., Krehbiel, C.R. 2008. Bovine Viral Diarrhea Virus: Involvement in Bovine Respiratory Disease and Diagnostic Challenges. In: Proceedings of the Southwest Veterinary Symposium, October 2-5, 2008, Dallas, Texas. Available: http://www.swvs.org. Technical Abstract: This paper reviews the contribution of bovine viral diarrhea viruses (BVDV) to the development of Bovine Respiratory Disease (BRD). Veterinarians and producers generally consider BRD as one of the most significant diseases affecting production in the cattle industry. BRD can affect the performance (daily growth rate, feed conversion, days on feed), carcass quality (yield grade, marbling, quality grade), economic return to the producer, and the well being of the animals. BRD involves complex interactions between respiratory pathogens, environmental stressors (including transportation between different production systems, commingling of cattle from various sources, nutrient deficiencies, weather conditions, pregnancy, and social interactions), and the immune response and ability to adapt to these stressors of the individual animal. The immunosuppression that accompanies infection with BVDV may significantly contribute to BRD.