Effects of the standardized ileal digestible lysine to metabolizable energy ratio on performance and carcass characteristics of growing-finishing pigs

Table 2 Ingredient and chemical composition of experimental diets used in experiments 1 to 3 (as-fed)

Item	ME level in 30 to 50 kg, Mcal/kg				ME level in 52 to 70 kg, Mcal/kg				ME level in 81 to 104 kg, Mcal/kg
	3.10	3.20	3.30	3.40	3.10	3.20	3.30	3.40	3.05	3.15	3.25	3.35
Ingredient, %
Corn	57.00	63.00	70.15	68.27	58.00	65.00	72.35	71.60	60.28	67.00	75.25	77.47
Soybean meal, (43% CP)	22.50	24.00	26.00	26.00	21.00	22.08	23.00	23.00	15.50	16.50	17.00	18.00
Wheat bran	16.97	9.36	0.00	0.00	17.75	9.50	1.00	0.00	21.05	13.31	4.28	0.00
Soybean oil	0.00	0.00	0.00	1.85	0.00	0.00	0.00	1.72	0.00	0.00	0.00	0.95
Dicalcium phosphate	0.75	1.00	1.40	1.40	0.60	0.90	1.25	1.30	0.55	0.75	1.20	1.40
Limestone	1.30	1.15	0.95	0.95	1.25	1.10	0.95	0.90	1.20	1.00	0.80	0.70
Salt	0.35	0.35	0.35	0.35	0.35	0.35	0.35	0.35	0.35	0.35	0.35	0.35
L-Lysine•HCl	0.13	0.14	0.15	0.18	0.05	0.07	0.10	0.13	0.07	0.09	0.12	0.13
Vitamin and mineral premix¹	1.00	1.00	1.00	1.00	1.00	1.00	1.00	1.00	1.00	1.00	1.00	1.00
Calculated composition
ME, Mcal/kg	3.11	3.20	3.31	3.40	3.11	3.20	3.30	3.40	3.05	3.15	3.25	3.35
SID Lys, %	0.81	0.83	0.87	0.89	0.71	0.74	0.76	0.78	0.61	0.64	0.65	0.67
SID-Lys/ME, g/Mcal	2.60	2.60	2.60	2.60	2.30	2.30	2.30	2.30	2.00	2.00	2.00	2.00
Analyzed composition, %
Lysine	0.92	0.94	0.97	0.99	0.83	0.84	0.86	0.88	0.72	0.73	0.74	0.76
Methionine	0.24	0.25	0.25	0.26	0.23	0.24	0.25	0.24	0.20	0.22	0.21	0.22
Threonine	0.66	0.67	0.70	0.70	0.64	0.66	0.65	0.65	0.55	0.56	0.55	0.57
Tryptophan	0.21	0.21	0.22	0.22	0.20	0.19	0.19	0.19	0.17	0.17	0.17	0.16
Calcium	0.73	0.75	0.75	0.74	0.70	0.71	0.69	0.71	0.64	0.63	0.65	0.62
Phosphorus	0.64	0.62	0.63	0.63	0.60	0.61	0.60	0.59	0.60	0.58	0.59	0.58

¹ Vitamin and mineral premix provided the following per kg of feed:
30 to 50 kg: Vitamin A, 6,000 IU; Vitamin D₃, 2,400 IU; Vitamin E, 21.6 IU; Vitamin K₃, 2 mg; Vitamin B₁, 0.96 mg; Vitamin B₂, 5.2 mg; Vitamin B₆, 2 mg; Vitamin B₁₂, 12 μg; Nicotinic acid, 22 mg; Pantothenic acid, 11.2 mg; Folic acid, 0.4 mg; Biotin, 40 μg; Choline chloride, 0.4 g; Fe, 120 mg; Cu, 140 mg; Zn, 100 mg; Mn, 16 mg; I, 0.24 mg; Se, 0.4 mg.
52 to 70 kg: Vitamin A, 5,600 IU; Vitamin D₃, 2,200 IU; Vitamin E, 21.6 IU; Vitamin K₃, 1.8 mg; Vitamin B₁, 0.88 mg; Vitamin B₂, 4 mg; Vitamin B₆, 1.8 mg; Vitamin B₁₂, 12 μg; Nicotinic acid, 20 mg; Pantothenic acid, 10 mg; Folic acid, 0.4 mg; Biotin, 40 μg; Choline chloride, 0.32 g; Fe, 88 mg; Cu, 120 mg; Zn, 96 mg; Mn, 16 mg; I, 0.24 mg; Se, 0.4 mg.
81 to 104 kg: Vitamin A, 5,200 IU; Vitamin D₃, 2,000 IU; Vitamin E, 17.2 IU; Vitamin K₃, 1.6 mg; Vitamin B₁, 0.8 mg; Vitamin B₂, 3.6 mg; Vitamin B₆, 1.6 mg; Vitamin B₁₂, 10 μg; Nicotinic acid, 17.6 mg; Pantothenic acid, 8.8 mg; Folic acid, 0.38 mg; Biotin, 32 μg; Choline chloride, 0.24 g; Fe, 76 mg; Cu, 120 mg; Zn, 76 mg; Mn, 12 mg; I, 0.24 mg; Se, 0.4 mg.

ISSN: 2049-1891