Table 3.

Effect of dietary CP content on total EAA and NEAA flow in omasum and ileum

Item	CP contents (g/kg DM)1					Contrast2
	CR	100	120	140	SEM	RI vs. VI	Linear	Quadratic
Flow of AA (g/d)
EAA omasum	160.8	264.0	288.4	345.9	0.02	<0.01	<0.01	0.38
NEAA omasum	189.5	313.7	353.0	409.7	0.03	<0.01	<0.01	0.69
EAA ileum	43.7	73.8	71.6	86.4	0.01	<0.01	0.10	0.19
NEAA ileum	56.8	97.1	93.7	115.2	0.01	<0.01	0.05	0.11
Flow of EAA in omasum (g/d)
Arginine	16.49	26.79	29.80	34.70	1.77	<0.01	<0.01	0.63
Histidine	6.91	10.90	12.05	14.19	0.96	<0.01	0.01	0.65
Isoleucine	18.20	29.91	32.77	38.41	1.82	<0.01	<0.01	0.50
Leucine	31.98	53.05	58.51	68.59	3.59	<0.01	<0.01	0.55
Lysine	24.19	42.62	45.28	57.78	2.93	<0.01	<0.01	0.11
Methionine	6.66	10.72	12.02	14.09	0.69	<0.01	<0.01	0.64
Phenylalanine	16.63	26.92	29.04	35.64	1.93	<0.01	<0.01	0.33
Threonine	16.74	27.48	30.56	36.91	1.75	<0.01	<0.01	0.38
Tryptophan	2.73	4.24	5.12	5.58	0.39	<0.01	<0.01	0.56
Valine	20.32	31.37	33.19	39.95	2.74	<0.01	0.03	0.47
Flow of nonessential in omasum AA (%)
Alanine	24.66	41.67	47.28	54.94	2.63	<0.01	<0.01	0.70
Aspartic acid	33.24	55.19	63.01	73.95	4.68	<0.01	0.01	0.78
Cystine	7.43	11.40	12.87	14.22	0.74	<0.01	0.01	0.95
Glutamic acid	30.38	58.05	55.60	70.26	4.91	<0.01	0.05	0.11
Glycine	20.62	34.86	39.78	45.67	2.32	<0.01	<0.01	0.83
Proline	19.10	33.66	38.56	42.87	2.18	<0.01	<0.01	0.89
Serine	17.33	28.27	31.91	37.95	1.87	<0.01	<0.01	0.54
Tyrosine	17.23	27.09	29.51	35.88	1.74	<0.01	<0.01	0.34
Flow of EAA in ileum (g/d)
Arginine	3.82	6.26	6.04	7.37	0.54	<0.01	0.07	0.14
Histidine	1.48	2.61	2.39	2.98	0.19	<0.01	0.11	0.05
Isoleucine	5.11	8.09	8.23	9.75	0.72	<0.01	0.04	0.30
Leucine	8.17	13.90	13.41	15.74	1.10	<0.01	0.16	0.21
Lysine	6.71	12.52	12.01	14.32	1.69	<0.01	0.40	0.44
Methionine	1.18	2.08	1.98	2.29	0.17	<0.01	0.32	0.25
Phenylalanine	4.55	7.42	7.42	8.97	0.61	<0.01	0.03	0.19
Threonine	5.99	9.95	9.54	11.98	0.80	<0.01	0.06	0.12
Tryptophan	0.88	1.55	1.32	1.67	0.14	<0.01	0.41	0.03
Valine	5.82	9.40	9.30	11.29	0.84	<0.01	0.05	0.19
Flow of nonessential in ileum AA (%)
Alanine	8.10	13.54	13.33	16.04	1.08	<0.01	0.06	0.19
Aspartic acid	6.99	12.05	11.78	16.16	1.65	<0.01	0.01	0.10
Cystine	1.84	2.98	3.29	3.35	0.39	<0.01	0.41	0.76
Glutamic acid	13.97	24.05	22.73	28.37	2.05	<0.01	0.06	0.07
Glycine	8.07	13.61	13.12	15.63	0.94	<0.01	0.08	0.13
Proline	7.10	12.35	11.61	13.49	0.89	<0.01	0.28	0.16
Serine	5.19	9.16	8.50	10.47	0.66	<0.01	0.14	0.09
Tyrosine	5.50	9.36	9.34	11.66	0.93	<0.01	0.02	0.15

¹Treatments: RI = restricted intake to 1.2% BW containing 120 g of CP/kg of DM; 100, 120, and 140 = voluntary intake containing 100, 120, and 140 g of CP/kg of DM, respectively.

²RI vs. VI = restricted intake vs. voluntary intake (100, 120, and 140 CP g of CP/kg of DM).