Table 2.
Diet composition, Exp. 3 (as-fed basis)1
| Item | BW range, kg | ||||
|---|---|---|---|---|---|
| 32 to 45 | 45 to 64 | 64 to 82 | 82 to 105 | 105 to 127 | |
| Ingredient, % | |||||
| Corn | 57.81 | 62.02 | 65.68 | 69.05 | 70.99 |
| Soybean meal (47.5% CP) | 19.41 | 15.52 | 12.08 | 8.66 | 6.91 |
| DDGS2 | 20.00 | 20.00 | 20.00 | 20.00 | 20.00 |
| Dicalcium phosphate (18.8% P) | 0.45 | 0.25 | 0.15 | — | — |
| Limestone | 1.20 | 1.15 | 1.10 | 1.30 | 1.20 |
| Salt | 0.35 | 0.35 | 0.35 | 0.35 | 0.35 |
| L-Lys HCl | 0.45 | 0.43 | 0.40 | 0.40 | 0.35 |
| L-Thr | 0.08 | 0.06 | 0.04 | 0.05 | 0.04 |
| L-Trp | 0.03 | 0.03 | 0.02 | 0.03 | 0.02 |
| MHA dry (Met) | 0.08 | 0.05 | 0.03 | 0.02 | — |
| Vitamin and mineral premix3,4 | 0.15 | 0.15 | 0.15 | 0.15 | 0.15 |
| Total | 100 | 100 | 100 | 100 | 100 |
| Calculated analysis5 | |||||
| Standard ileal digestible (SID) amino acids, % | |||||
| Lys | 1.02 | 0.91 | 0.81 | 0.73 | 0.65 |
| Ile:Lys | 62 | 62 | 63 | 62 | 65 |
| Leu:Lys | 153 | 163 | 174 | 183 | 200 |
| Met:Lys | 31 | 31 | 31 | 31 | 31 |
| Met & Cys:Lys | 56 | 57 | 58 | 60 | 62 |
| Thr:Lys | 62 | 62 | 62 | 63 | 66 |
| Trp:Lys | 18.5 | 18.5 | 18.5 | 18.5 | 18.5 |
| Val:Lys | 69 | 71 | 73 | 73 | 78 |
| Total Lys | 1.14 | 1.02 | 0.91 | 0.83 | 0.74 |
| ME, kcal/kg | 3,211 | 3,223 | 3,232 | 3,234 | 3,239 |
| NE, kcal/kg | 2,462 | 2,491 | 2,515 | 2,533 | 2,546 |
| SID Lys:ME, g/Mcal | 3.18 | 2.82 | 2.51 | 2.26 | 2.01 |
| SID Lys:NE, g/Mcal | 4.14 | 3.65 | 3.22 | 2.88 | 2.55 |
| CP, % | 19.0 | 17.4 | 15.9 | 14.6 | 13.8 |
| Ca, % | 0.67 | 0.58 | 0.52 | 0.53 | 0.49 |
| P, % | 0.54 | 0.49 | 0.46 | 0.42 | 0.42 |
| STTD P, % | 0.40 | 0.36 | 0.34 | 0.31 | 0.31 |
1A total of 922 pigs (PIC [Hendersonville, TN] TR4 × [FAST {Saskatoon, SK} Large white × PIC Landrace], initial BW 40.1 ± 0.36 kg) were used in a 97-d growth experiment in a five-phase feeding program.
2DDGS = distiller’s dried grains with solubles.
3VTM premix provided an estimated release of 0.11% STTD P.
4Premix provided per kilogram of premix: 4,116,034 IU vitamin A; 588,635 IU vitamin D3; 26,455 IU vitamin E; 1,470 mg vitamin K; 16.2 mg vitamin B12; 17,637 mg niacin; 11,759 mg pantothenic acid; 5,880 mg riboflavin; 83 g Fe from iron sulfate; 60 g Zn from zinc sulfate; 5.0 g Mn from manganese oxide; 108 g Cu from copper sulfate; 200 mg I from calcium iodate; and 200 mg Se from sodium selenite.
5 NRC (2012).