Table 5. Effect of dietary palm kernel meal (PKM) and β-xylanase supplementation on fatty liver incidence of laying hens

Item		Fatty liver
		Liver color1)				Lipid concentration (%)
		Score	L*	a*	b*
Xylanase (%)	PKM (%)
0	0	2.1	32.5	22.1	12.4	34.7
	10	1.9	33.3	18.9	13.2	33.0
0.025	0	2.9	34.0	20.1	15.2	32.9
	10	2.4	32.4	21.1	12.0	33.9
SEM		0.36	1.73	1.01	1.93	1.73
Main effect
Xylanase (%)
0		2.0	32.9	20.5	12.8	33.8
0.025		2.7	33.2	20.6	13.6	33.5
SEM		0.25	1.23	0.71	1.36	1.22
PKM (%)
0		2.5	33.3	21.1	13.8	33.8
10		2.2	32.8	20.0	12.6	33.5
SEM		0.25	1.23	0.71	1.36	1.22
Effect (p-value)
Xylanase		0.077	0.872	0.951	0.693	0.807
PKM		0.345	0.800	0.273	0.550	0.854
Xylanase × PKM		0.604	0.488	0.051	0.320	0.451

Liver score was measured by the scale and CIE [13,23].