Table 4.
Apparent ileal digestibility (g/kg) of dry matter (DM), crude protein (CP), fat, ash, and the ileal digestible energy (IDE) of broilers at 43 d supplemented with increasing concentrations of muramidase. Experiment 1.
| Muramidase LSU1 (F)/kg of feed | DM (g/kg) | CP (g/kg) | Fat (g/kg) | Ash (g/kg) | IDE (kcal/kg) |
|---|---|---|---|---|---|
| 0 | 698.8 | 799.5 | 652.0 b | 367.8 c | 3,253.4 |
| 15,000 | 716.9 | 814.9 | 697.6 b | 409.8 bc | 3,233.6 |
| 25,000 | 714.3 | 817.6 | 756.9 a | 435.0 ab | 3,355.4 |
| 35,000 | 731.8 | 810.2 | 758.6 a | 488.0 a | 3,281.6 |
| CV, % | 4.12 | 2.68 | 6.80 | 12.30 | 4.04 |
| P-value ANOVA | 0.13 | 0.31 | 0.01 | 0.01 | 0.20 |
| Linear | 0.032 | 0.24 | 0.013 | 0.014 | 0.30 |
| Quadratic | 0.90 | 0.14 | 0.48 | 0.44 | 0.57 |
abcDifferent letters in the same column differ by Tukey test (P < 0.05).
1
LSU(F): muramidase unit.
2
Linear significance; g/kg DM = 699.52 + 0.84*dose; R2 = 13%.
3
Linear significance; g/kg Fat = 654.25 + 3.31*dose; R² = 44%.
4
Linear significance; g/kg Ash = 362.66 + 3.31*dose; R² = 42%.