Table 5.

Effect of soluble or IF without or with carbohydrases on serum haptoglobin and C-reactive protein (CRP) in weaned pigs challenged with F18 ETEC¹

Item	Treatment2							Contrast P-value3
	NC	PC	SF		IF		SEM
			SF−	SF+	IF−	IF+		Fiber	Enzyme	F × E
Haptoglobin, mg/mL
dpi −1	1.81	1.74	1.35	1.74	1.35	1.86	0.53	0.712	0.259	0.953
dpi 3	0.52	0.65	0.29	0.34*	0.52	0.29	0.21	0.035	0.042	0.287
dpi 7	0.58	0.86	0.57	0.40	0.83	0.41#	0.36	0.344	0.565	0.948
CRP, μg/mL
dpi −1	304	382	328	379	485	190	116	0.579	0.136	0.012
dpi 3	200	423	346	353	333	189*	160	0.358	0.681	0.217
dpi 7	184	149	153	150	385	122	183	0.947	0.246	0.184

^*Significant difference compared with PC (P ≤ 0.05).

^#Tendency for difference compared with PC (0.05 < P ≤ 0.10).

¹ n = 10 pigs per treatment except for PC with eight pigs; P (day) < 0.05 and P (day × trt) > 0.10 for haptoglobin and CRP; least square means and pooled SEM were from data before log transformation.

²SF = soluble fiber diets included 10% sugar beet pulp without or with carbohydrases; IF = insoluble fiber diets 15% distiller’s dried grains with solubles without or with carbohydrases; SF− = soluble fiber diet without carbohydrases; SF+ = soluble fiber diet with carbohydrases; IF− = insoluble fiber diet without carbohydrases; IF+ = insoluble fiber diet with carbohydrases; the carbohydrases contained 0.01% pectinase (Pectinase ABE; 56 PE per kg of diet), 0.01% xylanase (Econase XT; 19,000 BXU per kg of diet), and 0.001% β-glucanase (Econase GT P; 23,200 BU per kg of diet), based on the manufacturer’s recommendations (AB Vista, Plantation, FL).

³Fiber = dietary fiber type effect (SF vs. IF); Enzyme = carbohydrases effect (without vs. with); F × E = fiber type by carbohydrases interaction effect.