Table 10.

Apparent ileal digestibility of dry matter, crude protein, acid detergent fiber, neutral detergent fiber, and ether extract in feeds fed to nursery pigs with increasing levels of xylanase

Item1	Xylanase, XU per kg feed					SEM	P-value
	0	220	440	880	1,760		Linear	Quad2	0 vs. Xyl3
AID, %
DM	59.95	58.92	63.38	62.63	63.47	1.78	0.102	0.404	0.287
CP	71.41	74.34	72.61	75.59	76.71	2.15	0.058	0.644	0.115
NDF	52.95	54.27	52.68	56.12	56.17	1.46	0.036	0.611	0.167
ADF	35.29	35.43	35.55	36.04	37.37	1.26	0.125	0.805	0.486
EE	83.90	84.01	84.72	87.57	89.50	3.20	0.024	0.845	0.264

AID, apparent ileal digestibility; DM, dry matter; CP, crude protein; NDF, neutral detergent fiber; ADF, acid detergent fiber; EE, ether extract.

Quadratic.

Xylanase (220 + 440 + 880 + 1,760 XU per kg feed).