Table 10.
Growth performance of weaned pigs1, exp. 2
| P-value3 | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Extruded CM | Extruder speed6 | |||||||||
| Item | SBM | CM | CM-250 | CM-350 | CM-450 | SEM2 | SBM vs. extruded CM4 | Extrusion of CM5 | Linear | Quadratic |
| ADFI, g | ||||||||||
| Day 1 to 7 | 456 | 506 | 489 | 504 | 507 | 37 | 0.139 | 0.840 | 0.622 | 0.839 |
| Day 8 to 14 | 802 | 831 | 806 | 811 | 823 | 37 | 0.712 | 0.568 | 0.646 | 0.899 |
| Day 15 to 21 | 1,080 | 1,066 | 1,066 | 1,073 | 1,065 | 37 | 0.696 | 0.930 | 0.971 | 0.820 |
| Day 1 to 21 | 780 | 801 | 787 | 796 | 798 | 27 | 0.525 | 0.761 | 0.686 | 0.893 |
| ADG, g | ||||||||||
| Day 1 to 7 | 319 | 356 | 309 | 393 | 400 | 45 | 0.182 | 0.766 | 0.044 | 0.320 |
| Day 8 to 14 | 607 | 588 | 568 | 548 | 582 | 45 | 0.256 | 0.556 | 0.752 | 0.475 |
| Day 15 to 21 | 671 | 675 | 675 | 700 | 673 | 45 | 0.752 | 0.848 | 0.976 | 0.507 |
| Day 1 to 21 | 532 | 540 | 517 | 547 | 552 | 26 | 0.765 | 0.954 | 0.183 | 0.585 |
| G:F | ||||||||||
| Day 1 to 7 | 0.70 | 0.70 | 0.63 | 0.78 | 0.78 | 0.076 | 0.604 | 0.663 | 0.058 | 0.243 |
| Day 8 to 14 | 0.73 | 0.71 | 0.71 | 0.67 | 0.70 | 0.044 | 0.303 | 0.724 | 0.947 | 0.432 |
| Day 15 to 21 | 0.59 | 0.63 | 0.64 | 0.65 | 0.63 | 0.032 | 0.090 | 0.832 | 0.846 | 0.445 |
| Day 1 to 21 | 0.68 | 0.68 | 0.66 | 0.70 | 0.70 | 0.023 | 0.469 | 0.717 | 0.046 | 0.244 |
1Diets contained 20% canola meal; CM, canola meal, ground but not extruded; CM-250, CM extruded at 250 rpm screw speed; CM-350, CM extruded at 350 rpm screw speed; CM-450, CM extruded at 450 rpm screw speed; SBM, soybean meal.
2Least squares means based on 10 pen observations of 4 pigs per diet.
3For ADFI, ADG, and feed efficiency, a week effect was observed (P < 0.001), but an interaction between diet and week was not observed (P > 0.05).
4Contrast SBM diet vs. three extruded CM diets.
5Contrast CM diet vs. three extruded CM diets.
6Analyzed using contrast for the three extruded CM diets.