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.