Case Study Of Broiler Chicken Carcass Condemnation In Brazil - Improved Control Using A Herpesvirus Turkey - Infectious Bursal Disease (HVT-IBD) Vector Vaccine

Godinho Emerson, Pereira Carlos Jeovane, Fernandez Adrian & Lemiere Stephane | XVII WVPA Congress Cancun | 2011

840 flocks were selected in the records of a broiler meat producer of which 397 flocks representing approximately 9 millions broilers were vaccinated against infectious Bursal Disease (IBD) with a hatchery vaccine (the control flocks) and 431 flocks representing approximately 9.2 millions birds with the HVT-IBD vector vaccine (treated flocks). Flocks were quasi-contemporaneous. total condemns and partial condemns were recorded. the condemnation rates that could be directly related to immunity of broilers, bacterial contamination and skin resistance were analyzed. Condemnation rates resulting from the slaughtering process were disregarded. All types of condemns were referred to the local conditions at that time of study. Meat overall condemnation rates (total and partial) were 5.41 % for the control flock and 4.13 % for the HVT-IBD vector vaccine vaccinated flocks. No significant difference (p = 0.39) in the overall mean percentage of condemnation between both populations was noted, but a trend to decrease condemn rate has been noted during production. However, there was a calculated economic savings of about $175K in carcass condemns in the HVT-IBD vector vaccine vaccinated flocks compared to IBDV-Ab complex vaccinated flocks (the control flocks).