Compared to the control, FCR during the starter phase was reduced by 8.8(5.7% for females and 11.8% for males; P=0.004),6.4%(P=0.001),and 4.8%(P=0.006)in Trial 1,2, and 3,respectively .In Trial 3,FCR during the finisher phase was 3.6% lower in DMG supplemented broilers(P¼0.036).