male pig weighing 60 kg were used in a Latin 4×4 Latin square experimental design in this trial. All pigs were housed in individual cages and fed one of four experimental diets during each replication period. Diets were formulated with SBM, FSBMA, FSBMA+L or SPC into an isonitrogenous diet with 17% crude protein and 3,200 Kcal ME according to the NRC (1998) nutrient requirements for pig. Table 1 presents the experimental diet composition. A 3 g/kg Cr2O3 was included as indicator for the digestibility measurements. Feed was provided ad libitum during the 7 days preliminary period and followed by 80% of the ad libitum consumption to maintain a constant feed consumption in the subsequent 4-day period for collection the digesta from cannula. Digesta was collected four times per day and then mixed for analysis of protein and Cr2O3 to calculate the ileum digestibility. The Cr2O3 in feeds or digesta was determined calorimetrically with a spectrophotometer (U-2001, HITACHI, Japan) according to the methods described by Williams et al. (1962).