Table 7.
Regression analysis.
| Items (Y) | Correlation | Optimum addition amount of Moutan cortex radicis (X, mg/kg) |
|---|---|---|
| Final body weight, kg | Y = −2.853E-07X2 + 0.002X + 7.82 | 4,029 |
| ADG, kg/d | Y = −1.11E-08X2 + 8.96E-05X + 0.08 | 4,044 |
| ADFI, kg/d | Y = −8.450E-09X2 + 6.497E-05X + 0.299 | 3,844 |
| F/G ratio | Y = 1.497E-07X2-0.001X + 4.816 | 4,579 |
| MDA, nmol/mL | Y = −0.026X + 224.251 | |
| Jejunum | ||
| Villus height, μm | Y = 3.565E-05X2-0.290X + 893.078 | 4,063 |
| Crypt depth, μm | Y = 1.768E-05X2-0.144X + 472.728 | 4,085 |
| IL-6 mRNA expression | Y = 3.11E-08X2 + 0.000X + 0.986 | 4,237 |
| NF-κB mRNA expression | Y = 2.314E-08X2 + 0.000X + 1.006 | 3,732 |
| IκBα mRNA expression | Y = 3.688E-08X2 + 0.000X + 0.984 | 4,083 |
| IKKβ mRNA expression | Y = 1.809E-08X2 + 0.000X + 0.999 | 3,875 |
| Ileum | ||
| Villus height, μm | Y = −5.445E-06X2 + 0.044X + 790.553 | 4,053 |
| Crypt depth, μm | Y = −4.853E-06X2 + 0.041X + 446.152 | 4,191 |
| Villus height/Crypt depth ratio | Y = 1.081E-08X2 + 0.000X + 1.1996 | 5,042 |
| IKKβ mRNA expression | Y = 2.691E-08X2 + 0.000X + 0.987 | 3,420 |