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.