Abstract

The present study reveal the role of aflatoxicosis in affecting the performance traits of broiler chickens which appear in the adverse effect on the lower weight gain and disturbed liver function and its pathological effect on liver and kidney tissues. On other hand the infection with H9N2 influenza virus during aflatoxicosis can lead to increase the severity of signs, lesions and histopathological effect leading to higher mortalities than H9N2 virus infection alone.

Key words: aflatoxicosis, H9N2,