Results
The intake of GE was less (P < 0.05) in pigs fed the corn diet than in pigs fed the FFSB-CV, FFSB-HP, or the FFSB-LO diets
(Table 3). Intake of GE was greater (P < 0.05) in pigs fed the FFSB-CV diet than in pigs fed the FFSB-LO diet; however, the GE
intake in pigs fed the FFSB-HP diet was not different from that of pigs fed the FFSB-CV diet or the FFSB-LO diet. Pigs fed the
corn diet had less (P < 0.05) fecal excretion of GE than pigs fed the FFSB-CV, FFSB-HP, or FFSB-LO diets. Fecal excretion of GE
was greater (P < 0.05) for pigs fed the FFSB-CV diet than for pigs fed the FFSB-LO diet, but fecal excretion of GE from pigs
fed the FFSB-HP diet was not different from that of pigs fed the FFSB-CV diet or the FFSB-LO diet. Urine excretion of GE was
not different among diets. The apparent total tract digestibility (ATTD) of GE was greater (P < 0.05) for the corn diet than
for the FFSB-CV diet, but the ATTD of GE for the FFSB-HP and FFSB-LO diets was not different from that of the corn diet or
the FFSB-CV diet. The DE and ME were less (P < 0.05) in the corn diet than in the FFSB-CV, FFSB-HP, and FFSB-LO diets, but
there were no differences in DE and ME among the 3 FFSB diets. The DE and ME in corn were less (P < 0.05) than in FFSB-CV,
FFSB-HP, and FFSB-LO (Table 4), but there were no significant differences in DE and ME among the 3 sources of FFSB; this
was true when values were calculated on an as-fed basis as well as on a DM-basis.