The global production of paddy rice exceeds 700 million tons per year. The primary objectiveof rice production is to produce polished white rice for human consumption, but in thisprocess, several co-products that may be fed to livestock are also generated. The objectiveof this experiment was to determine the coefficient of ileal apparent digestibility (CIAD)and the coefficient of ileal standardized digestibility (CISD) of crude protein (CP) and aminoacids (AA) in 2 sources of full fat rice bran (FFRB), 1 source of defatted rice bran (DFRB), andin broken rice when fed to growing pigs. Seven finishing pigs with an average initial bodyweight of 70.1 ± 6.3 kg were used. Pigs were surgically fitted with a T-cannula in the distalileum. Animals were allotted to a 7 × 7 Latin square design with 7 diets and 7 periods. Sevendiets were prepared, but 1 diet was unrelated to this experiment; therefore only 6 dietswere used in this experiment. One diet was based on bakery meal, and 1 diet was basedon broken rice. Three additional diets were formulated by mixing bakery meal and each ofthe 2 sources of FFRB (FFRB-1 and FFRB-2) or DFRB. The last diet was an N-free that wasused to estimate the basal ileal endogenous losses of CP and AA. The CIAD of CP and AA inbakery meal and broken rice was calculated using the direct procedure, but the CIAD of CPand AA in both sources of FFRB and in DFRB was calculated using the difference procedure.The CIAD and CISD of CP and AA in broken rice were greater (P < 0.05) than the CIAD andCISD of CP and AA in all other ingredients. The CIAD of the average of indispensable AA wasgreater (P < 0.05) for broken rice and less (P < 0.05) for DFRB, than for the 2 sources of FFRB.The CISD for the average of indispensable AA in broken rice (0.949) was greater than inFFRB-1 (0.862), FFRB-2 (0.850), and DFRB (0.817), but there were no differences betweenthe 2 sources of FFRB, and the average CISD of indispensable AA in DFRB was less (P < 0.05)than in the other ingredients. The concentrations of CISD CP and indispensable AA in DFRBwere greater (P < 0.05) than in all other ingredients. In conclusion, the CIAD and CISD of CPand AA in broken rice was greater than in FFRB and DFRB, but the greater concentration ofCP and AA in FFRB and DFRB result in greater concentrations of CISD CP and AA in FFRB andDFRB than in broken rice