Table 2.
Production performance parameters from hens fed diets containing 6 different levels of NPP from 32 to 36 wk of age1
| HHEP (%) | HDEP (%) | Mortality (% of total) | Change in BW (g) | EW (g) | |
|---|---|---|---|---|---|
| Diet2 | |||||
| 1 | 55.0 | 61.0 | 0.00 | 108 | 64.3 |
| 2 | 57.0 | 62.0 | 0.00 | 109 | 65.2 |
| 3 | 52.0 | 57.0 | 0.00 | 109 | 64.7 |
| 4 | 50.0 | 57.0 | 4.16 | 103 | 65.0 |
| 5 | 55.0 | 61.0 | 0.00 | 106 | 64.8 |
| 6 | 56.0 | 61.0 | 0.00 | 109 | 66.2 |
| SEM | 43.0 | 16.0 | 2.30 | 1.60 | 0.70 |
| P Value | 0.51 | 0.14 | 0.22 | 0.50 | 0.13 |
1
Values are presented as means ± SEM for the 4-wk production period.
2
Analyzed Values: Diet 1 = 216 mg NPP; Diet 2 = 288 mg NPP; Diet 3 = 360 mg NPP; Diet 4 = 432 mg NPP; Diet 5 = 505 mg NPP; Diet 6 = 576 mg NPP. Diets were calculated to equate to an intake of NPP/d assuming an intake of 144 g feed/d.
BW, body weight; EW, egg weight; HDEP, hen-day egg production; HHEP, hen housed egg production; NPP, non-phytate phosphorus.