Table 4.

ATTD (%) of GE, DM, OM, and NDF, and concentration of DE and ME in the basal corn-soybean meal diet and in diets containing wheat middlings or red dog¹

Item	Basal	Red dog	Wheat middlings, source												Wheat middlings2			Red dog vs. wheat middlings3
			1	2	3	4	5	6	7	8	9	10	Mean4	SD4	SEM	LSD	P-value	SEM	P-value
GE intake, kcal/d	8,589	9,018	8,923	8,997	9,253	8,989	8,759	9,152	9,110	9,072	8,915	8,984	9,015	139	133.9	368.6	0.37	140.6	0.986
GE in feces, kcal/d	905	1,290	1,696	1,718	1,763	1,803	1,884	1,702	1,735	1,664	1,753	1,717	1,743	62.9	58.2	160.5	0.37	66.7	<0.001
GE in urine, kcal/d	430	362	326	363	347	352	349	377	360	307	364	347	349	20.1	31.2	85.7	0.93	33.5	0.712
ATTD of GE, %	89.4	85.5	80.8	80.7	80.5	79.7	78.1	81.2	80.7	81.5	80.2	79.6	80.3	0.97	0.41	1.13	<0.001	0.49	<0.0001
ATTD of DM, %	90.5	87.1	81.1	81.5	82.4	80.0	80.5	81.2	82.6	81.8	81.8	81.1	81.4	0.79	0.46	1.27	0.01	0.50	<0.001
ATTD of OM, %	91.9	89.1	83.0	83.4	84.0	82.1	82.5	83.2	84.4	83.7	83.9	83.0	83.3	0.7	0.42	1.15	0.01	0.46	<0.0001
ATTD of NDF, %	67.0	63	53.0	55.2	61.5	55.7	56.9	50.7	61.8	58.3	54.2	54.3	56.2	3.56	1.08	2.96	<0.001	1.63	<0.0001
DE, kcal/ kg	3,464	3,288	3,131	3,097	3,142	3,086	3,009	3,197	3,154	3,182	3,154	3,117	3,127	54.1	15.9	43.85	<0.001	18.8	<0.0001
ME, kcal/ kg	3,275	3,136	2,990	2,943	2,997	2,942	2,864	3,039	3,005	3,049	3,001	2,969	2,980	54.0	19.3	53.12	<0.001	23.5	<0.0001

¹Values are least square means of eight observations per treatment.

²Comparison among the 10 diets containing wheat middlings.

³Comparison of diets containing red dog vs. the 10 diets containing wheat middlings.

⁴Mean and SD for the 10 diets containing wheat middlings.