sixty castrated male and female piglets (commercial lineage), weaned at 21 days of age and average live weight of 5.4 ± 1.44 kg, were used aiming to evaluate the effect on productive performance, diarrhea, and economic viability of adding different levels of rice bran (rb) in rations for pigs. the experimental design was completely randomized with five treatments (0.0, 5.0, 10.0, 15,0 and 20.0% of rb) and 6 replicates per treatment, where the experimental unit (plot) consisted of two animals. results showed that daily mean feed intake (dmfi), daily mean weight gain (dmwg) and feed conversion (fc), as well as the occurrence of diarrhea, did not differ significantly (p>0.05) for the different levels of rb inclusion in the ration. the economic analysis showed no significant difference among treatments. it is concluded that adding rice bran up to 20% in pig ratios for the period from 21 to 42 days of age is technically viable.