Table 2.
Effect of feeding different amounts of NPP and phytase on laying hen performance1.
| Dietary NPP | Inorganic P addition | Phytase addition | NPP intake | Egg production | Feed intake | Gain:feed | |
|---|---|---|---|---|---|---|---|
| Treatment | % | % | FYT/kg | mg/h/d | % | g/h/d | g/kg |
| 1 | 0.12 | 0.00 | 0.0 | 112c | 66.5b | 93.2b | 429b |
| 2 | 0.23 | 0.11 | 0.0 | 225b | 77.4a | 97.6a,b | 484a |
| 3 | 0.34 | 0.22 | 0.0 | 345c | 81.7a | 101.4a | 504a |
| 4 | 0.12 | 0.00 | 300 | 122c | 80.3a | 101.9a | 487a |
| 5 | 0.12 | 0.00 | 600 | 122c | 82.4a | 102.0a | 498a |
| 6 | 0.12 | 0.00 | 1200 | 120c | 83.1a | 99.8a | 511a |
| 7 | 0.12 | 0.00 | 1800 | 123c | 83.0a | 102.2a | 504a |
| SEM | 3.0 | 2.46 | 1.45 | 13.3 | |||
| P < | 0.00001 | 0.0005 | 0.0010 | 0.0028 |
1Numbers with distinct letter per column were statistically different (P < 0.05).