Effect of substitution of brown rice for maize on the growth performance of broiler

440 arbor acre broilers were randomly divided into four groups,110 broilers each group.The broiler group1 were fed with maize in the diets only(no brown rice),2,3 and 4 were fed with brown rice substituted for 50%,70%,100% maize in the diets.The trial period was 45d.Average final body weight and average daily gain(ADG)of broilers in group1,2,3 and 4 were 1.980kg and 42.7g,2.067kg and 44.7g,2.206kg and 47.8g,2.325kg and 50.4g,respectively.Compared with group 1,the ADG of broilers in group2,3 and 4 increased by 4.7%,11.9% and 18.0%,respectively and feed conversion ratio and feed cost per kg body gain decreased by 0.5% and 0.04 yuan,2.9% and 0.13 yuan,7.1%and 0.31 yuan.Respectively the results showed that ADG of broiler increased,feed conversion and gain cost decreased,with increasing the amount of brown rice in the diets.Hence,it is possible to use brown rice to substitute for maize.