Abstract: Background and Objective: Chicks may expose to delayed post hatch feed access due to several causes which may have consequences for poultry production. The present study investigated the impacts of different delayed time's access of feed on the production performance, histological examination and carcass traits in broiler chicks and how to substitute the detrimental effect of this delay by supplementation of threonine. Methodology: A total of 300 one-day old broiler chicks "Cubb 500" were used. They were alienated into 5 experimental groups, each group was further alienated into 6 replicates of 10 birds. Several productive traits as body weight gain, feed intake, feed efficiency, mortality and carcass traits were measured. In addition, villus height, villus width, crypt depth and villus surface area were also measured. Results: Results showed that group IV which fastened 24 h after hatch and fed threonine supplemented diet showed the highest performance traits. Control group showed the least yolk residual and the highest feed intake. Group of bird fastened either 24 or 48 h showed the least weight gain compared to other groups. Regarding to carcass traits, group of bird fastened for 48 h showed the least giblets weight and dressing percentage, while group IV showed the highest values of carcass traits. Conclusion: The productive performance of chicks was improved following early access to diet after hatch through skip all obstacles that prevent early chicks feed access.