الفهرس 
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Abstract
Quality control tests were applied to prove the efficacy of the Vaxxitek HVT+IBD vaccine by identity, sterility,
titration, immunosuppression, safety and potency tests. Vaxxitek HVT+IBD vaccine proved to be safe when inoculated in 1-day old chicks free from maternal derived antibodies, broiler chicks and Swiss mice with 10-field dose of the vaccine. The Vaxxitek HVT+IBD vaccine did not interfere with MDA and could be inoculated in 1-day broiler chicks safely and resulted in protective antibody response.