A total number (15000 females + 1500 males) of Arbor ACRES strain broiler breeder at 54 wks old were used to study the effects of exogenous enzyme preparation (phytabex plus) on the productive performance, egg components, egg chemical composition, egg shell quality, fertility and hatchability. Birds were divided randomly into 3 treatments (broiler breeder basal diet supplemented with 0, 100g and 200g/ton with phytabex plus) and housed on deep litter at open house system under commercial conditions. Each treatment replicated 4 times. The results showed no significant differences among dietary treatments on productive performance including (body weight gain, egg production, egg weight, egg mass, feed consumption and feed conversion ratio), egg components and chemical composition and egg shell quality. In addition, birds fed diet supplemented with 200 g/ton phytabex plus recorded higher fertility and hatchability percentages during experimental period (20 wks) than other treatments (p<0.05). It could be concluded from this study that supplementation of 200 g / ton phytabex plus is recommended for enhancement of the fertility and hatchability percentages of broiler breeding.