. 2018 Apr 24;96(6):2265–2277. doi: 10.1093/jas/sky149

Table 5.

Apparent total tract digestibility (ATTD) of DM, OM, CP, AEE, NDF, ADF, TDF, IDF, and SDF in experimental diets

Item, %	Diet¹										Pooled SEM	P value
Item, %	Corn	Wheat	SBM	CM	DDGS	CGM	CE	SBP	SF	Pectin	Pooled SEM	P value
DM	88.6^b	90.4^a	89.0^ab	79.2^f	81.1^e	84.3^d	86.4^c	85.9^c	80.1^ef	89.0^ab	0.65	<0.01
OM	90.6^b	92.1^a	90.7^ab	81.9^e	82.5^e	86.0^d	87.9^c	88.0^c	81.3^e	90.7^ab	0.63	<0.01
CP	77.9^d	87.4^a	88.3^a	81.1^c	84.1^b	76.9^d	81.9^bc	75.4^d	81.3^c	81.9^bc	1.11	<0.01
AEE²	32.3^d	59.3^a	23.7^e	39.9^cd	49.8^b	35.9^cd	64.0^a	32.3^cd	40.3^c	−40.8^f	3.01	<0.01
NDF	50.8^bc	71.8^a	57.8^b	44.6^c	69.1^a	75.7^a	76.4^a	74.9^a	52.3^bc	48.0^c	3.69	<0.01
ADF	59.8^bc	59.8^bc	76.4^a	73.1^ab	75.5^a	71.6^ab	78.0^a	81.3^a	70.6^ab	49.4^c	5.35	<0.01
TDF³	55.8^ef	61.5^d	70.2^c	59.6^de	59.3^de	75.5^b	77.7^ab	80.3^a	53.1^f	77.6^ab	1.69	<0.01
IDF³	53.5^fg	59.8^cd	64.2^c	57.0^def	58.9^de	74.6^b	76.1^ab	79.9^a	50.8^g	54.8^efg	1.84	<0.01
SDF³	97.9	96.8	97.4	92.7	87.9	96.1	97.3	86.2	101.9	99.0	5.05	0.29
Cellulose	65.0^de	62.6^e	81.0^ab	71.5^cd	78.6^abc	75.7^bc	82.4^ab	86.1^a	77.5^bc	61.7^e	2.84	<0.01
Ins. Hemi⁴	41.6^bc	73.4^ab	−6.0^d	−136.7^e	68.4^ab	77.5^a	75.3^ab	68.7^ab	20.1^cd	48.3^abc	13.69	<0.01
NSP⁵	56.9^cd	62.1^c	71.1^b	55.8^d	60.5^cd	77.3^ab	78.9^a	83.1^a	55.4^d	81.1^a	2.41	<0.01
Ins. NSP⁶	54.3^cd	60.3^bc	64.5^b	52.0^d	60.1^bc	76.4^a	77.4^a	82.8^a	53.1^d	60.5^bc	2.68	<0.01
NC NSP⁷	53.5^bc	61.9^b	64.3^b	42.0^d	53.3^bc	77.7^a	77.0^a	81.0^a	44.3^cd	85.2^a	4.30	<0.01

^a–gMeans within a row lacking a common superscript letter differ (P < 0.05).

¹SBM = soybean meal; CM = canola meal; DDGS = distillers dried grains with solubles; CGM = corn germ meal; CE = copra expellers; SBP = sugar beet pulp; SF = synthetic cellulose.

²AEE = acid hydrolyzed ether extract.

³TDF = total dietary fiber; IDF = insoluble dietary fiber; SDF = soluble dietary fiber.

⁴Ins. Hemi = insoluble hemicelluloses.

⁵NSP = nonstarch polysaccharides.

⁶Ins. NSP = insoluble nonstarch polysaccharides.

⁷NC NSP = noncellulosic nonstarch polysaccharides.