Adequate consideration of management systems is required to enhance the productivity of broiler chickens. This study was carried out to determine the effect of two housing systems on growth performance, carcass traits and bone morphometry of broiler chickens. A total of 180 unsexed one dayold Arbor Acre and Marshall breeds of broiler chickens were used for this study. The birds were brooded for 3 weeks and thereafter acclimatized for one week in their respective housing systems (deep litter and outdoor run). Each of the housing systems was allotted 90 chicks per breed with three replicates of 15 birds each. The birds were fed same quality and quantity of feed ad libitum and given water throughout the period of the experiment which lasted for four weeks. Data were collected weekly on weight gain and feed intake while feed conversion ratio was calculated. At the end of the study, 2 birds of representative weight in each replicate were selected for carcass analysis and bone strength determination. The experiment was arranged in a 2 x 2 factorial layout in a completely randomized design. The results of growth performance showed significantly (p
