Table 3. Body weight (BW), body weight gain (BWG), feed intake (FI) and feed conversion ratio (FCR) according to dietary crude protein and additional Phytase levels
| Treatments | BW (g/bird) | BWG (g/bird/d) | FI (g/bird/d) | FCR |
| CP (%) | Phytase (FTU/kg) |
| 20 | 1,000 | 745.8 | 547.6 | 750.0 | 1.01 |
| 800 | 748.4 | 554.5 | 733.4 | 0.98 |
| 500 | 683.3 | 576.6 | 765.8 | 1.02 |
| 19 | 1,000 | 739.2 | 544.7 | 863.3 | 1.19 |
| 800 | 822.5 | 633.4 | 839.2 | 1.02 |
| 500 | 712.5 | 525.9 | 801.7 | 1.01 |
| 18 | 1,000 | 683.3 | 493.3 | 781.7 | 1.12 |
| 800 | 777.5 | 586.3 | 716.7 | 1.03 |
| 500 | 730.0 | 545.6 | 810.8 | 1.11 |
| SEM1 | 64.70 | 64.61 | 72.27 | 0.104 |
| Crude protein (%) |
| 20 | 754.2 | 559.6 | 53.9 | 1.14 |
| 19 | 758.1 | 568.0 | 57.6 | 1.23 |
| 18 | 730.3 | 541.0 | 56.6 | 1.24 |
| SEM2 | 69.26 | 69.25 | 5.56 | 0.124 |
| Phytase (ppm) |
| 1,000 | 722.8 | 45.2 | 56.7 | 1.26 |
| 800 | 782.8 | 49.5 | 56.5 | 1.14 |
| 500 | 736.9 | 46.1 | 55.0 | 1.20 |
| SEM3 | 65.17 | 4.77 | 5.74 | 0.123 |
| P-Value |
| Crude protein | 0.57 | 0.63 | 0.26 | 0.11 |
| Phytase | 0.08 | 0.08 | 0.73 | 0.07 |
| Phytase × CP | 0.20 | 0.20 | 0.12 | 0.13 |
SEM, standard error of means (n = 4).
SEM, standard error of means (n = 12).
SEM, standard error of means (n = 12).
CP, crude protein; BW, body weight; BWG, body weight gain; FI, feed intake; FCR, feed conversion ratio.