Table 4.
Apparent ileal digestibility (%) of crude protein and amino acids in the experimental diets¹

Item	Experimental diets					SEM²	P-value
Item	Corn	Wheat	SBM	CM	DDGS	SEM²	P-value
Crude protein	78.1^b	73.1^c	84.0^a	73.7^c	72.9^c	1.0	<0.01
Indispensable amino acids
Arg	87.0^b	74.4^d	91.4^a	84.9^bc	81.0^c	1.0	<0.01
His	86.3^a	78.7^c	87.7^a	82.1^b	75.8^c	0.7	<0.01
Ile	76.8^b	74.1^b	84.5^a	73.1^b	73.0^b	1.5	<0.01
Leu	87.9^a	77.6^b	85.3^a	77.9^b	85.0^a	0.9	<0.01
Lys	76.0^b	70.0^c	89.4^a	76.6^b	62.7^d	1.5	<0.01
Met	87.7^ab	79.9^c	88.9^a	86.6^ab	85.0^b	1.4	<0.01
Phe	84.8^ab	81.6^b	87.3^a	81.2^b	81.3^b	1.1	<0.01
Thr	66.8^b	60.5^c	79.3^a	67.0^b	65.3^bc	1.4	<0.01
Val	80.1^a	73.4^b	83.2^a	72.3^b	74.0^b	1.3	<0.01
Dispensable amino acids
Ala	86.8^a	68.2^d	84.5^ab	77.3^c	82.5^b	1.1	<0.01
Asp	77.1^ab	65.2^cd	83.4^a	70.5^bc	62.6^d	1.8	<0.01
Cys	78.1^a	75.2^ab	73.5^bc	70.4^cd	68.6^d	1.7	<0.01
Glu	88.4^a	90.6^a	88.8^a	84.6^b	81.8^b	0.7	<0.01
Gly	73.6^b	70.7^b	81.6^a	73.7^b	66.0^c	1.0	<0.01
Pro	84.8^a	86.7^a	83.4^a	70.6^c	78.1^b	1.0	<0.01
Ser	77.7^b	73.8^bc	84.2^a	70.6^c	73.7^bc	1.2	<0.01
Tyr	85.5^ab	77.2^c	88.6^a	77.8^c	82.9^b	1.0	<0.01

Means in a row different superscripts are significantly different (P<0.05).
SBM, soybean meal; CM, canola meal; DDGS, corn distillers dried grains with solubles.
SEM, standard error of the means.