Table 1.
Ingredient composition and nutrient content of the experimental diets.
| Item | Starter (d 0–14) | Grower (d15–28) | Finisher (d29–43) | ||||||
|---|---|---|---|---|---|---|---|---|---|
| NTM | LTM | HTM | NTM | LTM | HTM | NTM | LTM | HTM | |
| Wheat | 47.30 | 47.14 | 47.18 | 45.17 | 45.01 | 45.05 | 50.77 | 50.61 | 50.65 |
| Soybean meal, 47.5% CP | 33.40 | 33.40 | 33.40 | 29.36 | 29.36 | 29.36 | 23.90 | 23.90 | 23.90 |
| Barley | 10.00 | 10.00 | 10.00 | 15.00 | 15.00 | 15.00 | 15.00 | 15.00 | 15.00 |
| Soybean oil | 4.45 | 4.45 | 4.45 | 6.30 | 6.30 | 6.30 | 6.30 | 6.30 | 6.30 |
| L-lysine HCl | 0.25 | 0.25 | 0.25 | 0.15 | 0.15 | 0.15 | 0.16 | 0.16 | 0.16 |
| Methionine hydroxy analogue1 | 0.42 | 0.38 | 0.34 | 0.35 | 0.31 | 0.27 | 0.32 | 0.28 | 0.24 |
| L-threonine | 0.11 | 0.11 | 0.11 | 0.07 | 0.07 | 0.07 | 0.07 | 0.07 | 0.07 |
| Dicalcium phosphate 18.5% | 1.80 | 1.80 | 1.80 | 1.55 | 1.55 | 1.55 | 1.45 | 1.45 | 1.45 |
| Limestone | 1.25 | 1.25 | 1.25 | 1.05 | 1.05 | 1.05 | 1.05 | 1.05 | 1.05 |
| Salt | 0.50 | 0.50 | 0.50 | 0.50 | 0.50 | 0.50 | 0.50 | 0.50 | 0.50 |
| Choline cloride-60% | 0.27 | 0.27 | 0.27 | 0.25 | 0.25 | 0.25 | 0.23 | 0.23 | 0.23 |
| Mineral premix | — | 0.202 | 0.203 | — | 0.202 | 0.203 | — | 0.202 | 0.203 |
| Antioxidant4 | 0.02 | 0.02 | 0.02 | 0.02 | 0.02 | 0.02 | 0.02 | 0.02 | 0.02 |
| Fungicide5 | 0.05 | 0.05 | 0.05 | 0.05 | 0.05 | 0.05 | 0.05 | 0.05 | 0.05 |
| Coccidiostat6 | 0.05 | 0.05 | 0.05 | 0.05 | 0.05 | 0.05 | 0.05 | 0.05 | 0.05 |
| Bacitracin methylene disalicylate7 | 0.03 | 0.03 | 0.03 | 0.03 | 0.03 | 0.03 | 0.03 | 0.03 | 0.03 |
| Vitamin premix8 | 0.10 | 0.10 | 0.10 | 0.10 | 0.10 | 0.10 | 0.10 | 0.10 | 0.10 |
| Calculated analysis | |||||||||
| ME, kcal/kg | 3034 | 3034 | 3031 | 3155 | 3155 | 3153 | 3201 | 3199 | 3199 |
| Crude protein, % | 22.8 | 22.7 | 22.7 | 21 | 21 | 21 | 19 | 19 | 19 |
| SID9 Lysine, % | 1.27 | 1.27 | 1.27 | 1.1 | 1.1 | 1.1 | 0.97 | 0.97 | 0.97 |
| SID Methionine,% | 0.64 | 0.64 | 0.64 | 0.56 | 0.56 | 0.56 | 0.5 | 0.5 | 0.5 |
| SID Sulfure amino acids, % | 0.94 | 0.94 | 0.94 | 0.84 | 0.84 | 0.84 | 0.76 | 0.76 | 0.76 |
| SID Threonine, % | 0.83 | 0.83 | 0.83 | 0.73 | 0.73 | 0.73 | 0.65 | 0.65 | 0.65 |
| Ca, % | 1.05 | 1.05 | 1.04 | 0.9 | 0.9 | 0.89 | 0.86 | 0.86 | 0.85 |
| Available phosphorus, % | 0.5 | 0.5 | 0.5 | 0.45 | 0.45 | 0.45 | 0.42 | 0.42 | 0.42 |
1Methionine hydroxy analogue (MHA®) (Novus International, Inc., St. Charles, MO).
2Mineral premix for LTM treatment supplied per kilogram of diet: FeSO4·H2O, 40 mg; Calcium Iodate, 1.25 mg; Sodium Selenite, 0.3 mg; Mintrex®Zn, 32 mg; Mintrex®Cu, 8 mg; Mintrex®Mn, 32 mg.
3Mineral premix for HTM treatment supplied per kilogram of diet: FeSO4·H2O, 40 mg; Calcium iodate, 1.25 mg; Sodium selenite, 0.3 mg; Mintrex®Zn, 64 mg; Mintrex®Cu, 16 mg; Mintrex®Mn, 64 mg.
4Santoquin® (Novus International, Inc., St. Charles, MO).
5Mold guard® (Kemin, Des Moines, Iowa).
6Coban®90 (Elanco Animal Health, Greenfield, IN).
7BMD® (Zoetis, Inc., Florham Park, NJ).
8Vitamin premix supplied per kilogram of diet: retinol, 9.2 mg; cholecalciferol, 100 µg; dl-α-tocopherol, 90 mg; menadione, 6 mg; thiamine, 6.2 mg; riboflavin, 26.5 mg; pantothenic acid, 39.7 mg; niacin, 100 mg; pyridoxine, 11 mg; folic acid, 4 mg; biotin, 0.3 mg; cyanocobalamin, 0.1 mg.
9Standardized ileal digestibility.