Table 3.

Effect of diet and drying method on the concentration of DM, Cr, CP, and AA in ileal digesta from pigs fed diets containing three sources of soybean meal (SBM) or an N-free diet, Exp. 1¹

	Diet						Drying method
Item	SBM-1	SBM-2	SBM-3	N-free	SEM	P-value	Freeze dried	Oven dried	SEM	P-value
DM, %	87.78b	87.06b	87.70b	90.58a	0.63	<0.001	90.12	86.44	0.53	<0.001
Cr, %	1.13a	1.04a	1.04a	1.82b	0.08	<0.001	1.21	1.30	0.06	0.234
CP, %	21.64b	25.01a	19.50bc	18.66c	1.35	<0.001	20.80	21.60	1.27	0.244
Indispensable AA, %
Arg	0.42b	0.55a	0.41b	0.45ab	0.05	0.010	0.64	0.28	0.05	<0.001
His	0.29b	0.37a	0.24bc	0.20c	0.02	<0.001	0.32	0.22	0.01	<0.001
Ile	0.66ab	0.70a	0.59b	0.41c	0.03	<0.001	0.61	0.57	0.03	0.031
Leu	1.04ab	1.12a	0.96b	0.64c	0.06	<0.001	1.01	0.88	0.05	0.002
Lys	1.02b	1.43a	0.72c	0.39d	0.08	<0.001	1.07	0.71	0.07	<0.001
Met	0.15a	0.15a	0.13a	0.10b	0.01	<0.001	0.15	0.11	0.01	<0.001
Phe	0.62ab	0.69a	0.60b	0.40c	0.03	<0.001	0.63	0.52	0.03	<0.001
Thr	0.82	0.80	0.77	0.82	0.06	0.751	0.84	0.76	0.05	0.050
Trp	0.13	0.13	0.13	0.12	0.01	0.935	0.18	0.08	0.01	<0.001
Val	0.80a	0.85a	0.73a	0.59b	0.05	<0.001	0.75	0.73	0.04	0.635
Total	5.94b	6.80a	5.27b	4.13c	0.35	<0.001	6.19	4.87	0.32	<0.001
Dispensable AA, %
Ala	1.04a	1.01a	0.88b	0.67c	0.06	<0.001	0.82	0.98	0.06	<0.001
Asp	1.76a	1.93a	1.46b	0.87c	0.10	<0.001	1.74	1.27	0.09	<0.001
Cys	0.37ab	0.39a	0.33ab	0.29b	0.03	0.018	0.40	0.29	0.02	<0.001
Glu	2.40a	2.89a	1.71b	0.94c	0.19	<0.001	2.37	1.60	0.16	<0.001
Gly	1.44a	1.44a	1.17b	1.65a	0.16	<0.001	1.50	1.36	0.15	0.054
Ser	0.64	0.63	0.58	0.59	0.05	0.623	0.69	0.53	0.04	<0.001
Tyr	0.35a	0.35a	0.38a	0.26b	0.02	<0.001	0.42	0.25	0.02	<0.001
Total	7.99a	8.65a	6.51b	5.27c	0.51	<0.001	7.93	6.28	0.46	<0.001
All AA	13.93a	15.44a	11.77b	9.40c	0.84	<0.001	14.12	11.15	0.77	<0.001

^a–cMeans within a row lacking a common superscript letter are different (P ≤ 0.05).

¹Values for Cr, CP, and AA were adjusted to 88% (DM-basis).