he aim of this study was to evaluate multi enzymes complex (ZADO®) on broiler performance, enzymes activity, some blood parameters and histological observations.225 one-day unsexed Hubbard chicks were distributed into 5 equal group (45 chicks).Each experimental group was divided into five replicates (9 chicks/each).The first group was served as control and fed basal diets.While, the other groups r...