Table 2.
Effect of protease on performance in weaned pigs with different SBM levels.
| SBM | Protease | ADG (g) | ADFI (g) | F/G | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| d 1–14 | d 15–28 | d 29–42 | d 15–42 | d 1–42 | d 1–14 | d 15–28 | d 29–42 | d 15–42 | d 1–42 | d 1–14 | d 15–28 | d 29–42 | d 15–42 | d 1–42 | ||
| Normal | 0 mg/kg | 95.23 ab | 285.60 a | 527.46 a | 406.53 ab | 296.58 a | 227.13 a | 551.12 ab | 958.80 ab | 754.96 ab | 575.02 ab | 2.77 a | 2.04 c | 1.84 c | 1.87 c | 1.96 c |
| 150 mg/kg | 101.45 b | 339.86 b | 534.11 a | 436.98 b | 323.51 b | 248.24 b | 610.89 c | 950.33 ab | 780.61 b | 603.15 b | 3.29 b | 1.80 b | 1.78 b | 1.79 b | 1.88 b | |
| Low | 0 mg/kg | 89.90 ab | 290.05 a | 517.37 a | 401.97 a | 294.27 a | 226.71 a | 532.07 a | 926.71 a | 729.39 a | 561.83 a | 2.88 a | 1.85 b | 1.78 b | 1.81 b | 1.91 bc |
| 150 mg/kg | 80.18 a | 351.36 b | 584.47 b | 467.91 c | 341.49 b | 215.15 a | 573.80 ab | 1004.33 b | 789.07 b | 601.75 b | 2.78 a | 1.64 a | 1.71 a | 1.68 a | 1.77 a | |
| SEM | 5.18 | 7.83 | 10.47 | 8.35 | 7.12 | 5.21 | 12.29 | 19.89 | 15.73 | 11.94 | 0.14 | 0.03 | 0.02 | 0.01 | 0.02 | |
| p-Values | ||||||||||||||||
| SBM | 0.003 | 0.192 | 0.011 | |||||||||||||
| Protease | 0.004 | 0.225 | <0.001 | |||||||||||||
| phase | <0.001 | <0.001 | <0.001 | |||||||||||||
| SBM×Protease | <0.001 | <0.001 | 0.035 | |||||||||||||
| Phase×SBM | 0.012 | 0.023 | 0.001 | |||||||||||||
| Phase×Protease | 0.562 | 0.406 | 0.351 | |||||||||||||
| Phase×SBM×Protease | 0.002 | <0.001 | <0.001 | |||||||||||||
Normal = normal soybean meal diet, Low = low soybean meal diet; SEM = standard error of means; SBM = soybean meal. Within a column, the mean values with different letters differ at p < 0.05.