Table 3.

Feed ingredients and nutrient composition of experimental diets fed to finishing pigs (as-fed basis) ¹.

Item	Diet 1	Diet 2	Diet 3
Ingredients (g/kg)
Corn	908.44	904.94	901.44
Soybean meal	64.00	64.00	64.00
Canola oil	8.00	8.00	8.00
l-Lysine-HCl (98.5%)	0.00	3.50	7.00
dl-Methionine (99.0%)	0.40	0.40	0.40
l-Threonine (98.5%)	0.90	0.90	0.90
l-Tryptophan (99.0%)	0.35	0.35	0.35
Limestone	6.50	6.50	6.50
Dicalcium phosphate	9.00	9.00	9.00
Salt	2.00	2.00	2.00
Mineral premix 2	0.33	0.33	0.33
Vitamin premix 3	0.08	0.08	0.08
Total	1000.0	1000.0	1000.0
Composition (g/kg) 4
Metabolizable energy (kcal/kg)	3319	3323	3326
Crude protein	104.5	107.5	110.5
Total lysine	4.33	7.08	9.82
Total methionine	2.37	2.36	2.36
Total threonine	5.02	5.01	5.00
Total tryptophan	1.40	1.40	1.39
Total Ca	4.58	4.58	4.58
Total P	4.32	4.31	4.30

¹ Diets 1, 2, and 3 were formulated to contain total lysine 4.33, 7.08, and 9.82 g/kg (as-fed basis), respectively, of which Diets 2 and 3 were formulated by adding 3.50 and 7.00 g/kg l-lysine-HCl (Archer Daniels Midland Co., Quincy, IL, USA) to Diet 1 at the expense of corn; ² The mineral premix contained Ca 132 g/kg, Cu 10.0 g/kg, Fe 80.0 g/kg, Mn 50.0 g/kg, Zn 100.0 g/kg, I 500 mg/kg, and Se 300 mg/kg; ³ Each kilogram of vitamin premix contained the following: 22.05 million IU vitamin A, 3.31 million IU vitamin D3, 66,138 IU vitamin E, 88 mg vitamin B12, 220 mg biotin, 8,818 mg menadione, 15,432 mg riboflavin, 61,728 mg d-pantothenic acid, and 88,183 mg niacin and ⁴ Calculated major nutrients.