All growth performance data are presented in Table III.3. There were no differences (P > 0.10) in initial (d 0) BW of the barrows with a mean BW of 7.47 kg. At the end of the experiment (d 21), TUM increased (P = 0.02; quad) BW, ADG, and ADFI of the barrows. For G:F, there was a linear (P = 0.03) increase
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for pigs fed TUM compared with pigs fed the control, where pigs fed TUM had the most efficient G:F. All pigs fed TUM were heavier (P = 0.03), gained more weight (P = 0.02), tended to consume more feed (P = 0.10), and had a better (P = 0.02) G:F than pigs fed the control diet. The pigs fed 4 g/kg of TUM were the heaviest pigs, gained the most weight, consumed the most feed, and had the highest G:F.