Table 3.
Performance of growing pigs fed diets containing graded levels of β-mannanase (Exp. 1)1
| β-mannanase (U/kg) | SEM2 | p-value | ||||||
|---|---|---|---|---|---|---|---|---|
|
|
|
|||||||
| 0 | 200 | 400 | 600 | ANOVA | Linear | Quadratic | ||
| Day 1 to 14 | ||||||||
| Weight gain (g/d) | 637 | 668 | 690 | 669 | 40.5 | 0.83 | 0.50 | 0.69 |
| Feed intake (g/d) | 1,509 | 1,467 | 1,474 | 1,428 | 52.1 | 0.75 | 0.30 | 0.59 |
| Feed efficiency | 427 | 455 | 469 | 466 | 24.6 | 0.62 | 0.23 | 0.40 |
| Day 15 to 28 | ||||||||
| Weight gain (g/d) | 708 | 862 | 904 | 836 | 43.4 | 0.03 | 0.06 | <0.01 |
| Feed intake (g/d) | 1,818 | 1,754 | 1,761 | 1,732 | 49.4 | 0.65 | 0.25 | 0.49 |
| Feed efficiency | 389 | 489 | 516 | 482 | 18.3 | <0.01 | <0.01 | <0.01 |
| Day 1 to 28 | ||||||||
| Weight gain (g/d) | 665 | 759 | 793 | 749 | 31.1 | 0.05 | 0.08 | 0.01 |
| Feed intake (g/d) | 1,664 | 1,626 | 1,617 | 1,580 | 45.0 | 0.63 | 0.19 | 0.44 |
| Feed efficiency | 404 | 466 | 491 | 474 | 14.1 | <0.01 | <0.01 | <0.01 |
1
Values represent the means of six pens with six pigs per pen.
2
SEM = Standard error of the mean.