effect of natafous and safizyme in rice bran based rations of broilers

the effects of phytase and glycosidase supplementation to diets containing rice bran on broiler performance were investigated by using 200 day old (308 ross) broiler chicks in a completely randomized design with five treatments and four replicates. the five dietary treatments were as: corn-soybean meal based diet; diet containing rice bran; diet containing rice bran supplemented with natafous; diet containing rice bran supplemented with safizyme, and diet containing rice bran supplemented with natafous and safizyme. the dietary levels of rice bran were 15, 20 and 25 percent for the starting, growing and finishing diets, respectively. birds fed on rice bran + enzyme added diets consumed less feed (p< 0.05) than those fed on unsupplemented rice bran contained diets. the enzyme addition to rice bran containing diets improved the villi length and weight gain of birds at different rearing periods (p< 0.05). in conclusion, results showed that the natafous or safizyme supplementation in diets could improve the performance of broiler chicks when rice bran was used at a level of 15, 20 and 25 percent in starter, grower and finisher diets, respectively.