Table 2.

Effects of dietary arabinoxylan content on monogastric animal performance.

Animal	BW	Age, d	Duration, d	Xylan Content	Effect	Reference
Broiler	ND	1	35	0.8% (additional AX in crumble feed) 0.7% (additional AX in pelleted feed)	Increased ileal viscosity, total AX solubilization (22%) and fermentation.	[79]
Broiler	38 g	1	14	2.1% AX (soluble)	Lowered body weight (24%). Increased bifidobacteria population (64%).	[80]
Broiler	ND	6	19	2.5, 5.0, 7.5, 10.0, 15.0% D-xylose	Linear decrease in BWG (5–22%) and FCR (1–10%).	[81]
Pig	6.9 kg	26	30	2.6% AX	Lowered cecal pH (10%). Reduced intestinal transcellular permeability in SI and midcolon (76%, 77%). Increased total SCFA in cecum and midcolon (32%, 19%). Growth performance unaffected.	[82]
Pig	7.5 kg	30	20	4.6% AX	Lowest SCFA concentration. Highest jejunal viscosity. Lower villus height and proliferation.	[24]
Pig	10.7 kg	42	21	1.9% additional AX in feed 1	Increased jejunal viscosity (22%) and TNF-α (12%). Reduced AID of DM (8%) and GE (8%). Reduced villus height/crypt depth ratio in duodenum (12%)	[83]
Pig	45–120 kg	ND	ND	12.3% AX	No effect on growth performance. Decreased AID of CP (16%), starch (5%), OM (35%), and energy (20%).	[84]
Pig	58 kg	ND	11	11.8% AX in high fiber diet	Decreased AID of OM (7%), starch (7%), and CP (3%). Decreased AID of Arg (4%), Asp (19%), Glu (3%), Leu (9%), and Ser (12%).	[85]

ND, no data. AX, arabinoxylan. BWG, body weight gain. FCR, feed conversion ratio. SI, small intestine. SCFA, short-chain fatty acid. TNF-α, tumor necrosis factor-α. AID, apparent ileal digestibility. DM, dry matter. GE, gross energy. CP, crude protein. OM, organic matter. ¹ Calculated according to corn DDGS AX values given by Tiwari et al. [24] and corn AX values given by Knudsen [75].