Table 1. Ingredient and calculated composition of experimental diets (as-fed diets).

Variable	CP (%)
	17.2	15.7
		Lysine (%)
	1.10	1.10	1.15	1.20
Ingredients composition (%)	100.00	100.00	100.00	100.00
Corn	56.72	60.55	60.52	60.51
Bakery by product	5.00	5.00	5.00	5.00
Molasses	2.00	2.00	2.00	2.00
Soybean meal	22.75	18.40	18.09	17.81
DDGS	7.00	7.00	7.00	7.00
Animal fat	3.65	3.68	3.71	3.74
Salt	0.40	0.40	0.40	0.40
TCP	0.90	0.94	0.95	0.95
Limestone	0.62	0.60	0.60	0.60
Lysine (78%)	0.34	0.49	0.56	0.64
Tryptophan (100%)	0.15	0.37	0.50	0.61
Threonine (98.5%)	0.09	0.15	0.20	0.24
Methionine (99.5%)	0.08	0.12	0.16	0.20
Choline chloride	0.05	0.05	0.05	0.05
Mineral premix1)	0.10	0.10	0.10	0.10
Vitamin premix2)	0.10	0.10	0.10	0.10
Phytase	0.05	0.05	0.05	0.05
Calculated composition (%)
ME (kcal/kg)	3,400	3,400	3,400	3,400
CP	17.20	15.70	15.70	15.70
EE	7.01	7.13	7.16	7.19
Lysine	1.10	1.10	1.15	1.20
Methionine + cysteine	0.59	0.59	0.63	0.66
Threonine	0.63	0.63	0.67	0.70
Tryptophan	0.18	0.18	0.19	0.20
Valine	0.73	0.66	0.65	0.65
Ca	0.63	0.62	0.62	0.62
P	0.59	0.58	0.58	0.58

¹⁾Supplied per kilogram of diet: 45 mg Fe; 0.25 mg Co; 50 mg Cu; 15 mg Mn; 25 mg Zn; 0.35 mg I; 0.13 mg Se.

²⁾Supplied per kilogram of diet: 16,000 IU vitamin A; 3,000 IU vitamin D3; 40 IU vitamin E; 5.0 mg vitamin K3; 5.0 mg vitamin B₁; 20 mg vitamin B₂; 4 mg vitamin B₆; 0.08 mg vitamin B₁₂; 40 mg pantothenic acid; 75 mg niacin; 0.15 mg biotin; 0.65 mg folic acid.

CP, crude protein; DDGS, distiller’s dried grains with soluble; TCP, tricalcium phosphate; EE, ether extract.