Table 4.
Item | Crude glycerin (% DM) | SEM | P value* | ||||
---|---|---|---|---|---|---|---|
0 | 7 | 14 | 21 | Linear | Quadratic | ||
Nutrient intake (g/d) | |||||||
DM | 1,112 | 1,194 | 999 | 863 | 42.9 | <0.001 | 0.018 |
CP | 188 | 204 | 173 | 140 | 7.91 | <0.001 | 0.004 |
Ether extract | 24.8 | 48.1 | 59.3 | 68.5 | 1.97 | <0.001 | <0.001 |
NDF | 457 | 485 | 388 | 341 | 18.3 | <0.001 | 0.058 |
Nonfiber carbohydrates | 373 | 369 | 296 | 238 | 13.2 | <0.001 | 0.057 |
Total digestible nutrients | 868 | 932 | 780 | 674 | 33.5 | <0.001 | 0.017 |
Effectively consumed diet composition (g/d) | |||||||
CP | 169 | 171 | 173 | 163 | 0.23 | 0.267 | 0.085 |
Ether extract | 24.0 | 40.3 | 59.4 | 79.5 | 0.03 | <0.001 | 0.002 |
NDF | 410 | 407 | 388 | 395 | 0.45 | 0.011 | 0.322 |
Nonfiber carbohydrates | 336 | 308 | 296 | 276 | 0.30 | <0.001 | 0.258 |
Digestibility coefficient (%) | |||||||
DM | 79.2 | 77.5 | 72.4 | 60.5 | 3.26 | 0.003 | 0.202 |
CP | 79.2 | 76.5 | 73.2 | 60.7 | 3.47 | 0.006 | 0.263 |
Ether extract | 86.2 | 92.5 | 93.1 | 93.3 | 1.30 | 0.014 | 0.084 |
NDF | 71.4 | 68.8 | 61.8 | 35.8 | 6.28 | 0.006 | 0.153 |
Nonfiber carbohydrates | 93.5 | 91.8 | 87.7 | 85.6 | 0.82 | <0.001 | 0.839 |
Total digestible nutrients | 78.1 | 78.1 | 74.8 | 65.1 | 3.01 | 0.019 | 0.203 |
Performance growth | |||||||
Initial BW (kg) | 23.0 | 24.0 | 23.6 | 24.3 | — | — | — |
Final BW (kg) | 37.9 | 40.4 | 36.0 | 32.3 | 1.27 | <0.001 | 0.015 |
ADG (g/d) | 191 | 200 | 158 | 103 | 8.85 | <0.001 | <0.001 |
G:F (g/g) | 0.17 | 0.17 | 0.16 | 0.12 | 0.01 | <0.001 | 0.017 |
*Significant at P ≤ 0.05.