Table 11. Superzyme addition into low energy and low amino acid diet on carcass parameters of the broiler chickens
Item | Treatment1) | SEM | p-value2) |
PC | NC-1 | NC-2 | NC-1+1X | NC-2+1X | NC-1+2X | NC-2+2X | Overall | Energy | AA |
Breast (%) |
Day 21 | 21.62 | 21.02 | 21.79 | 20.99 | 21.03 | 22.43 | 22.05 | 0.285 | 0.778 | 0.227 | 0.671 |
Day 35 | 25.45 | 25.07 | 24.27 | 25.69 | 24.64 | 26.73 | 23.97 | 0.264 | 0.077 | 0.330 | 0.662 |
Whole leg (%) |
Day 21 | 8.35 | 7.80 | 8.74 | 8.21 | 8.79 | 8.95 | 8.51 | 0.130 | 0.241 | 0.083 | 0.836 |
Day 35 | 8.90 | 8.65 | 9.57 | 9.17 | 8.98 | 8.73 | 9.26 | 0.130 | 0.534 | 0.348 | 0.558 |
Drumstick (%) |
Day 21 | 3.93 | 3.89 | 4.31 | 4.08 | 4.22 | 3.95 | 4.09 | 0.059 | 0.451 | 0.741 | 0.662 |
Day 35 | 4.06 | 4.15 | 4.28 | 4.18 | 4.11 | 4.22 | 4.27 | 0.046 | 0.877 | 0.905 | 0.581 |
PC, nutrient sufficient diet; NC-1, 120 kcal/kg, reduce energy diet; NC-2, 3%, digestible amino acid reduced diet; 1X, 0.025% superzyme-CS addition; 2X, 0.05% superzyme-CS addition.
Overall, p-value for all treatment effect; Energy, p-value for enzyme effect on low energy diets; AA, p-value for enzyme effect on low amino acid diets.
PC, positive control; NC, negative control.