. 2020 Jul 18;98(8):skaa225. doi: 10.1093/jas/skaa225

Table 4.

Apparent ileal digestibility (%) of CP and AA in experimental diets calculated using the direct procedure^1,2

Item, %	SBM	Corn	Wheat	Wheat middlings	Corn–SBM	Wheat–SBM	Wheat middlings–SBM	Pooled SEM	P-values
CP	80.7^a	73.9^b	68.6^c	45.1^d	80.4^a	77.02^ab	73.8^b	1.66	<0.001
Indispensable AA
Arg	91.7^a	85.1^b	75.1^c	74.8^c	90.8^a	87.3^b	86.4^b	1.23	<0.001
His	88.2^a	85.4^abc	76.8^d	71.3^e	87.6^ab	84.5^ab	82.9^c	1.35	<0.001
Ile	87.3^a	83.6^ab	76.0^c	62.5^d	87.1^a	83.4^ab	82.5^b	1.91	<0.001
Leu	86.2^ab	88.0^a	78.3^d	66.7^e	87.9^a	83.2^bc	81.8^cd	1.50	<0.001
Lys	85.3^a	75.6^b	62.3^c	53.6^d	83.9^a	78.8^b	78.9^b	2.10	<0.001
Met	88.7^ab	88.9^a	81.1^d	69.9^e	90.4^a	85.1^bc	83.9^cd	1.46	<0.001
Phe	86.4^a	85.2^ab	79.9^c	67.2^d	86.8^a	83.9^ab	81.9^bc	1.30	<0.001
Thr	80.6^a	72.0^c	64.1^d	46.0^e	80.3^ab	75.2^abc	74.4^bc	2.35	<0.001
Trp	87.8^a	65.6^d	74.4^c	63.2^d	82.2^ab	81.5^b	73.3^c	2.15	<0.001
Val	83.2^a	78.7^ab	71.5^c	58.4^d	83.4^a	78.8^ab	77.6^b	1.84	<0.001
Dispensable AA
Ala	80.9^a	84.5^a	64.6^c	52.8^d	83.9^a	75.4^b	74.8^b	1.65	<0.001
Asp	84.2^a	80.9^ab	66.5^c	60.6^d	83.5^ab	78.7^b	78.9^b	2.03	<0.001
Cys	78.4^ab	79.4^a	78.9^ab	66.8^c	79.7^a	77.4^ab	74.5^b	1.90	<0.001
Glu	88.3^a	88.6^a	89.7^a	78.9^c	87.4^ab	88.9^a	84.9^b	1.21	<0.001
Gly	75.4^a	61.8^cd	60.4^d	37.3^e	71.8^ab	72.2^ab	68.3^bc	2.45	<0.001
Pro	83.2^ab	80.9^b	87.0^ab	59.9^c	91.0^a	93.2^a	87.1^ab	4.57	0.007
Ser	84.8^a	80.6^abc	76.6^c	60.7^d	84.4^a	81.4^ab	78.8^bc	1.67	<0.01

^a–eMeans within a column lacking a common superscript letter are different (P < 0.05).

¹Data are least squares means of 7 or 8 observations per treatment.