Table 10. Superzyme addition into low energy and low amino acid diet on ileal digestibility of the nutrient in broiler chickens

Item	Treatment¹⁾							SEM	p-value²⁾
Item	PC	NC-1	NC-2	NC-1+1X	NC-2+1X	NC-1+2X	NC-2+2X	SEM	Overall	Energy	AA
Dry matter (%)
Day 21	63.73^a	60.81^ab	59.19^b	63.94^a	60.63^ab	63.58^a	63.52^a	0.399	0.001	0.001	0.052
Day 35	73.68	71.19	72.77	70.89	72.40	73.66	73.15	0.329	0.114	0.119	0.787
Crude protein (%)
Day 21	81.26^ab	80.38^b	80.31^b	82.93^a	81.85^ab	83.02^a	82.88^a	0.239	0.001	0.001	0.011
Day 35	85.54^a	83.92^b	84.82^ab	85.07^ab	85.55^a	85.98^a	85.09^ab	0.155	0.007	0.014	0.134
Energy (%)
Day 21	66.98^a	64.34^ab	61.07^b	64.74^ab	64.07^ab	67.50^a	68.38^a	0.499	0.001	0.029	0.003
Day 35	74.95^ab	72.44^b	73.56^ab	72.93^b	72.77^b	76.06^a	74.25^ab	0.306	0.006	0.001	0.519

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.
Means within a same column with no common superscript differ significantly (p < 0.05).
PC, positive control; NC, negative control.