Table 3.

Effects of hulless barley and β-glucanase on AME_n of broiler chickens aged 28 d.

Hulless barley (%)	β-Glucanase (%)	AMEn (kcal/kg, 90% DM basis)
0	0	3,001a
	0.01	2,938a,b
	0.1	2,964a,b
30	0	2,898b
	0.01	2,938a,b
	0.1	2,954a,b
60	0	2,724c
	0.01	2,704c
	0.1	2,888b
SEM1		12.4
Main effects
Hulless barley (%)
0		2,967
30		2,930
60		2,772
β-Glucanase (%)
0		2,874
0.01		2,860
0.1		2,935
ANOVA P-value
Hulless barley		<0.001
β-Glucanase		<0.001
Hulless barley × β-glucanase		<0.001

^a–dMeans within a main effect or interaction not sharing a common superscript are significantly different (P ≤ 0.05).

¹SEM = pooled SEM (n = 10 cages per treatment).