Table 7.
Apparent retention of components, metabolizable energy corrected for nitrogen (AMEn), crude protein and calories conversion in turkey poults in response to cereal grain type, fiber, and multienzyme supplement (MES) fed from hatch to 28 d of life.
| Grain | Fiber level | MES1 | Apparent retention, % |
AMEn, mcal/kg DM | Conversion |
|||||
|---|---|---|---|---|---|---|---|---|---|---|
| Dry matter | Crude protein | Crude fat | NDF | Gross energy | CCR2 mcal/kg BWG | CPCR3 g/kg BWG | ||||
| Corn | 59.96b | 52.09b | 86.19 | 25.11b | 66.34b | 3.18b | 4.21 | 179.23b | ||
| Wheat | 61.55a | 54.18a | 85.63 | 34.28a | 67.57a | 3.29a | 4.33 | 199.15a | ||
| Low | 59.58b | 52.04b | 84.64b | 27.84b | 65.94b | 3.19b | 4.28 | 184.85b | ||
| High | 61.93a | 54.23a | 87.17a | 31.55a | 67.97a | 3.27a | 4.26 | 193.53a | ||
| - | 59.46b | 51.98b | 85.31 | 25.97b | 65.46b | 3.17b | 4.29 | 187.70 | ||
| + | 62.05a | 54.29a | 86.51 | 33.42a | 68.45a | 3.29a | 4.25 | 190.68 | ||
| SEM | 0.15 | 0.34 | 0.49 | 0.41 | 0.16 | 0.01 | 0.07 | 4.14 | ||
| Corn | Low | 59.10d | 52.55b | 83.61c | 23.99d | 65.49 | 3.15c | 4.26 | 181.52b | |
| Corn | High | 60.83b | 51.63b | 88.77a | 26.23c | 67.20 | 3.21b | 4.17 | 176.94b | |
| Wheat | Low | 60.05c | 51.53b | 85.67b | 31.70b | 66.40 | 3.24b | 4.29 | 188.18b | |
| Wheat | High | 63.04a | 56.82a | 85.58b | 36.86a | 68.74 | 3.34a | 4.36 | 210.13a | |
| Corn | - | 58.09c | 50.92 | 85.97 | 19.81d | 64.24c | 3.09c | 4.22 | 178.88 | |
| Corn | + | 61.83a | 53.26 | 86.40 | 30.41c | 68.45a | 3.27b | 4.21 | 179.58 | |
| Wheat | - | 60.82b | 53.04 | 84.64 | 32.13b | 66.69b | 3.26b | 4.36 | 196.53 | |
| Wheat | + | 62.27a | 55.31 | 86.61 | 36.43a | 68.44a | 3.32a | 4.30 | 201.78 | |
| Low | - | 58.84c | 52.00b | 83.92 | 26.33c | 64.90d | 3.14d | 4.34 | 186.50 | |
| Low | + | 60.31b | 52.08b | 85.37 | 29.36b | 66.98b | 3.24b | 4.22 | 183.20 | |
| High | - | 60.08b | 51.96b | 86.70 | 25.61c | 66.03c | 3.20c | 4.24 | 188.91 | |
| High | + | 63.79a | 56.49a | 87.65 | 37.48a | 69.92a | 3.35a | 4.28 | 198.16 | |
| SEM | 0.22 | 0.48 | 0.70 | 0.57 | 0.22 | 0.01 | 0.11 | 5.79 | ||
| Corn | Low | - | 59.07d | 53.77bc | 84.12c | 23.48d | 65.05dc | 3.12d | 4.37 | 188.74ba |
| Corn | Low | + | 59.13d | 51.32de | 83.09c | 24.50d | 65.92c | 3.18c | 4.16 | 174.30b |
| Corn | High | - | 57.12e | 48.07f | 87.82ba | 16.15e | 63.42e | 3.06e | 4.08 | 169.01b |
| Corn | High | + | 64.53a | 55.20b | 89.71a | 36.32ba | 70.98a | 3.36a | 4.26 | 184.86ba |
| Wheat | Low | - | 58.61d | 50.23fe | 83.71c | 29.18c | 64.75d | 3.17c | 4.31 | 184.25bba |
| Wheat | Low | + | 61.50c | 52.83dc | 87.64ba | 34.22b | 68.04bb | 3.31b | 4.28 | 192.10ba |
| Wheat | High | - | 63.03b | 55.85ba | 85.58bc | 35.08b | 68.63b | 3.34ba | 4.41 | 208.81a |
| Wheat | High | + | 63.05b | 57.79a | 85.58bc | 38.64a | 68.85b | 3.33ba | 4.31 | 211.45a |
| SEM | 0.30 | 0.67 | 0.99 | 0.81 | 0.32 | 0.01 | 0.14 | 8.19 | ||
| P-value | ||||||||||
| Grain | <0.001 | <0.001 | 0.264 | <0.001 | <0.001 | <0.001 | 0.143 | <0.001 | ||
| Fiber | <0.001 | <0.001 | <0.001 | <0.001 | <0.001 | <0.001 | 0.872 | 0.043 | ||
| MES | <0.001 | <0.001 | 0.020 | <0.001 | <0.001 | <0.001 | 0.604 | 0.477 | ||
| Grain*Fiber | <0.001 | <0.001 | <0.001 | <0.001 | <0.052 | 0.019 | 0.282 | 0.003 | ||
| Grain*MES | <0.001 | 0.919 | 0.127 | <0.001 | <0.001 | <0.001 | 0.752 | 0.587 | ||
| Fiber*MES | <0.001 | <0.001 | 0.614 | <0.001 | <0.001 | 0.003 | 0.296 | 0.138 | ||
| Grain*Fiber*MES | <0.001 | <0.001 | 0.001 | <0.001 | <0.001 | <0.001 | 0.133 | 0.039 | ||
Abbreviation: SEM, standard error of means.
Within a column LSmeans with different superscripts differs, P < 0.05.
MES: multienzyme supplement supplied main activity of xylanase and β-glucanase and other minor activities including invertase, protease, cellulase, amylase and mannanase. The targeted activity level of xylanase and β-glucanase were 800 and160, U/kg of feed, respectively.
CPCR: crude protein conversion ratio.
CCR: calories conversion ratio.