Table 2.

Chemical analysis of diets (as-fed)¹

	Added Cu,2 mg/kg:	0		150
Item	Diet type:	Corn-soy	By-product	Corn-soy	By-product
Phase 2
DM, %		85.90	88.00	86.00	88.00
CP, %		15.98	18.30	15.74	18.48
NDF, %		6.61	14.87	8.00	15.05
Crude fiber, %		2.06	4.05	2.32	4.22
Ether extract, %		2.14	4.63	1.94	4.76
Ash, %		4.70	5.10	4.21	4.73
Ca, %		0.74	0.74	0.73	0.69
P, %		0.46	0.51	0.47	0.49
Cu, mg/kg		54	44	211	190
Bulk density, g/liter		665	614	644	606
Phase 3
DM, %		86.30	88.40	86.30	88.20
CP, %		13.81	16.53	13.72	15.88
NDF, %		6.82	15.20	7.25	14.02
Crude fiber, %		1.98	3.98	2.16	3.79
Ether extract, %		1.96	4.95	2.07	4.64
Ash, %		3.71	4.66	4.03	5.01
Ca, %		0.72	0.72	0.81	0.78
P, %		0.43	0.50	0.47	0.49
Cu, mg/kg		41	33	209	204
Bulk density, g/liter		662	596	651	597
Phase 4
DM, %		85.80	87.50	85.80	87.60
CP, %		11.50	15.93	12.70	15.94
NDF, %		8.24	14.70	9.87	14.37
Crude fiber, %		2.40	4.03	2.83	3.94
Ether extract, %		2.36	4.38	1.99	4.55
Ash, %		3.35	4.20	3.53	4.70
Ca, %		0.67	0.57	0.63	0.68
P, %		0.42	0.51	0.46	0.48
Cu, mg/kg		58	30	159	187
Bulk density, g/liter		624	596	610	590
Phase 5
DM, %		85.80	87.20	85.50	87.40
CP, %		11.93	15.52	11.54	15.47
NDF, %		7.89	14.04	7.35	14.95
Crude fiber, %		2.23	4.01	2.05	3.67
Ether extract, %		1.68	4.59	1.98	4.71
Ash, %		3.73	4.68	3.62	5.26
Ca, %		0.72	0.72	0.71	0.75
P, %		0.49	0.54	0.47	0.54
Cu, mg/kg		48	39	209	203
Bulk density, g/liter		632	604	630	603

¹Values represent means from 1 composite sample, analyzed in duplicate. Phase 1 diets were not available for analysis.

²Tribasic copper chloride (Intellibond C; Micronutrients, Inc., Indianapolis, IN).