Infectious Bursal Disease, Immunosuppression And The Role Of VAXXITEK® HVT+ IBD

Grogan K. 

Immunosuppression costs the poultry industry exponential sums in increased mortality, performance figures, and condemnations at processing. Control of immunosuppression in broilers is primarily based on vaccination programs for breeders and broiler progeny, along with management to minimize stress. This paper looks at infectious bursal disease virus (IBDV) as an immunosuppressive agent and how the broiler responds to infection. Histologic scoring methods were used to evaluate the recovery of the bursa following natural field infections in broilers vaccinated with VAXXITEK HVT+IBD or conventional broilers.