From: The optimal dietary arginine level of laying hens fed with low-protein diets
Item | Control2 | Dietary arginine level in LP diet, %3 | P-value | ||||||
---|---|---|---|---|---|---|---|---|---|
0.80 | 0.85 | 0.90 | 0.95 | 1.00 | |||||
Diet4 | Linear5 | Quadratic5 | |||||||
Final BW, kg | 2.08 ± 0.03 | 2.03 ± 0.05 | 2.04 ± 0.07 | 1.97 ± 0.05 | 2.05 ± 0.06 | 1.94 ± 0.09 | 0.637 | 0.435 | 0.749 |
Laying rate, % | 88.38 ± 1.38 | 86.80 ± 1.71 | 90.66 ± 1.21 | 89.07 ± 1.08 | 88.02 ± 1.23 | 86.47 ± 1.21 | 0.247 | 0.403 | 0.030 |
Egg weight, g | 62.65 ± 0.29 | 61.92 ± 0.30 | 62.18 ± 0.28 | 62.51 ± 0.25 | 62.45 ± 0.38 | 62.21 ± 0.39 | 0.629 | 0.370 | 0.209 |
Egg mass, g/hen/d | 55.35 ± 0.84 | 53.74 ± 1.10 | 56.34 ± 0.64 | 55.67 ± 0.70 | 54.97 ± 0.85 | 53.78 ± 0.83 | 0.183 | 0.602 | 0.012 |
Feed intake, g/d | 133.36 ± 0.72 | 135.86 ± 1.01 | 137.64 ± 1.43 | 136.32 ± 0.90 | 136.83 ± 1.03 | 135.47 ± 0.82 | 0.073 | 0.605 | 0.224 |
Feed efficiency, g/g | 2.42 ± 0.03b | 2.54 ± 0.05a | 2.44 ± 0.02ab | 2.46 ± 0.03ab | 2.50 ± 0.03ab | 2.53 ± 0.04a | 0.040 | 0.714 | 0.019 |