. 2018 Oct 17;97(1):338–352. doi: 10.1093/jas/sky403

Table 5.

Apparent duodenal digestibility of energy, nutrients, and dietary fiber of pigs fed corn- and wheat-based diets, %¹

	GE	DM	Ash	OM	CP	ADL	ADF	NDF	Cellulose	Insoluble hemi–cellulose	IDF²	SDF²	TDF²	NSP²	Insoluble NSP	Non–cellulosic NSP
Corn-based diets
Corn-SBM³	8.28^ab	2.85^abc	−27.99^a	9.56^ab	6.23^bcd	−43.79^e	5.08^ab	5.23^def	7.50^ab	5.81^ef	12.83^cde	19.34^abcd	13.19^cd	13.75^def	13.41^cde	15.20^de
Corn-SBM + xylanase A⁴	3.23^bcd	−2.20^cd	−44.76^bcde	4.86^bc	2.94^cd	−46.12^e	−1.71^bc	2.48^ef	−0.18^bc	4.44^f	7.95^def	−10.17^cde	6.96^de	7.30^efg	8.32^def	8.97^ef
Corn-SBM + xylanase B	0.03^d	−4.83^d	−36.72^ab	1.75^c	−0.01^d	−35.07^de	−2.61^bc	0.78^f	−0.82^bc	1.94^f	7.86^def	−39.83^e	5.56^de	5.95^fg	8.31^def	7.58^ef
Corn-SBM-DDGS⁵	3.01^cd	−3.20^cd	−33.95^ab	4.13^bc	2.04^cd	16.50^ab	1.41^bc	7.03^cdef	0.12^bc	9.11^def	2.77^f	−16.76^de	1.69^e	1.44^g	2.53^f	1.97^f
Corn-SBM-DDGS + xylanase A	4.98^bcd	0.78^bcd	−30.60^ab	7.34^bc	1.36^cd	11.01^abc	2.39^bc	10.74^bcde	1.44^bc	14.38^de	7.63^def	7.44^bcd	7.52^de	7.44^efg	7.52^ef	9.17^ef
Corn-SBM-DDGS + xylanase B	3.49^bcd	−2.03^cd	−38.82^abcd	5.24^bc	1.00^d	17.57^a	3.89^b	11.66^bcd	2.58^bc	14.53^de	6.59^ef	10.78^abcd	6.88^de	6.68^efg	6.37^ef	7.83^ef
Wheat-based diets
Wheat-SBM	7.02^abc	2.51^abc	−52.38^de	9.54^ab	5.17^bcd	−12.39^bcd	−0.38^bc	10.91^bcde	1.49^bc	16.70^cd	15.81^bcd	48.65^a	18.67^bc	19.68^bcd	16.82^bcd	23.69^bcd
Wheat-SBM + xylanase A	0.64^d	−2.98^cd	−58.30^e	3.42^c	2.42^cd	−12.28^abcd	4.24^ab	18.44^b	8.10^ab	25.35^bc	21.13^abc	38.32^ab	22.59^abc	23.96^abc	22.59^abc	27.75^abc
Wheat-SBM + xylanase B	6.51^abc	4.70^ab	−38.06^abc	9.65^ab	7.25^bc	2.02^abc	15.62^a	30.35^a	17.94^a	37.57^a	28.67^a	44.94^ab	30.16^a	31.10^a	29.66^a	34.00^a
Wheat-SBM-wheat middlings	3.29^bcd	−1.66^bcd	−52.10^cde	5.66^bc	10.12^ab	−16.81^cde	−8.17^c	4.97^def	−5.72^c	11.31^def	12.37^cde	26.07^abc	13.64^cd	15.25^cde	14.05^cde	20.16^cd
Wheat-SBM-wheat middlings + xylanase A	10.38^a	7.89^a	−38.42^abcd	13.38^a	15.31^a	−4.62^abc	4.13^ab	18.20^b	6.14^b	24.54^bc	22.25^ab	34.47^ab	23.11^ab	24.45^ab	23.66^ab	28.57^abc
Wheat-SBM-wheat middlings + xylanase B	1.25^d	−1.26^bcd	−44.83^bcde	4.43^bc	9.54^ab	−6.45^abcd	−0.35^bc	15.50^bc	1.56^bc	29.79^ab	23.07^ab	35.50^ab	24.14^ab	25.79^ab	24.80^ab	31.47^ab
SEM	1.88	2.41	5.46	2.02	2.46	10.86	4.28	3.31	4.19	3.75	3.31	18.16	3.63	3.64	3.31	3.97
P−values
Grain source	0.340	0.033	<0.001	0.062	<0.001	0.418	0.643	<0.001	0.176	<0.001	<0.001	<0.001	<0.001	<0.001	<0.001	<0.001
Fiber concentration	0.913	0.955	0.283	0.840	0.048	<0.001	0.243	0.993	0.049	0.331	0.079	0.939	0.077	0.069	0.070	0.122
Grain source × fiber concentration	0.898	0.902	0.684	0.965	0.002	<0.001	0.036	0.001	0.099	0.002	0.733	0.167	0.936	0.844	0.519	0.513
Xylanase	0.113	0.586	0.644	0.276	0.618	0.440	0.278	0.005	0.273	<0.001	0.043	0.795	0.098	0.101	0.043	0.103
Grain source × xylanase	0.573	0.391	0.057	0.610	0.337	0.777	0.037	0.006	0.023	0.001	0.024	0.581	0.031	0.030	0.022	0.049
Fiber concentration × xylanase	0.001	0.002	0.007	0.001	0.220	0.783	0.365	0.321	0.392	0.527	0.293	0.040	0.158	0.161	0.311	0.141
Grain source × fiber concentration × xylanase	0.008	0.049	0.707	0.021	0.113	0.866	0.204	0.097	0.179	0.452	0.471	0.184	0.318	0.311	0.460	0.387

¹Data are means of eight observations per treatment.

²IDF = insoluble dietary fiber; SDF = soluble dietary fiber; TDF = total dietary fiber; NSP = nonstarch polysaccharides.

³SBM = soybean meal.

⁴Xylanases A and B were experimental xylanases supplied by Danisco Animal Nutrition-DuPont Industrial Biosciences (Marlborough, UK).

⁵DDGS = distillers dried grains with solubles.