The average time to first passage of flatus [ ( 21 ) d vs. ( 42 ) d , P < 0.01 ] , the first passage of stool [ ( 3.81.6 ) d vs. ( 6.42.5 ) d , P < 0.01 ] , resumption of regular diet [ ( 42 ) d vs. ( 8.22.2 ) d , P < 0.01 ] and the postoperative hospital stay [ ( 61 ) d vs. ( 11.73.8 ) d , P < 0.01 ] were significantly shorter in early oral feeding group as compared to conventional oral feeding group .