| Levels of crude protein (%) | ||||
Item | 10 | 13 | 16 | SEM | p-Value |
Growth performance traits |
|
|
|
|
|
Initial weight (kg) | 12.10 | 13.40 | 12.40 | 3.290 | 0.840 |
Final weight (kg) | 78.37 | 84.60 | 82.33 | 7.732 | 0.487 |
Total gain (kg) | 66.24 | 71.22 | 69.91 | 6.772 | 0.527 |
ADG (kg/day) | 0.29 | 0.34 | 0.33 | 0.027 | 0.295 |
ADFI intake (kg/day) | 1.40 | 1.43 | 1.50 | 0.069 | 0.440 |
FCR | 4.44 | 4.20 | 4.38 | 0.316 | 0.529 |
Back fat thickness (cm) | 18.20 | 18.75 | 18.00 | 1.110 | 0.603 |
Age at puberty (day) | 157.20 | 153.84 | 154.42 | 4.812 | 0.526 |
Weight at puberty (kg) | 44.23 | 41.17 | 43.80 | 6.063 | 0.717 |