Stocking density, birds/m2 | Tryptophan Level, % | Initial Bodyweight, g | Final Bodyweight, g | Daily bodyweight Gain, g | Feed Intake, g/d | Feed efficiency |
---|---|---|---|---|---|---|
Stocking density × tryptophan level | ||||||
11.0 | 0.18 | 778 | 1,960 | 69.53 | 127.2 | 1.83b |
11.0 | 0.27 | 780 | 1,961 | 69.47 | 126.5 | 1.82b |
15.4 | 0.18 | 781 | 1,887 | 65.00 | 123.5 | 1.90a |
15.4 | 0.27 | 781 | 1,939 | 68.06 | 123.2 | 1.81b |
SEM | 5.6 | 76.2 | 4.250 | 6.30 | 0.059 | |
Stocking density | ||||||
11.0 | 779 | 1,963 | 69.65 | 126.8 | 1.82 | |
15.4 | 781 | 1,913 | 66.59 | 123.4 | 1.85 | |
SEM | 1.1 | 16.4 | 0.900 | 1.28 | 0.012 | |
Tryptophan level | ||||||
0.18% | 780 | 1,924 | 67.24 | 125.3 | 1.86 | |
0.27% | 782 | 1,950 | 68.76 | 124.9 | 1.82 | |
SEM | 1.1 | 15.5 | 0.057 | 1.28 | 0.015 | |
P-values | ||||||
Stocking density | 0.351 | 0.084 | 0.089 | 0.214 | 0.144 | |
TRP level | 0.891 | 0.564 | 0.509 | 0.851 | 0.052 | |
Density × TRP | 0.659 | 0.265 | 0.375 | 0.938 | 0.045 |