Table 1.
Nursery diet composition (as-fed basis)1
Item | Phase 1 | Phase 2 | Phase 3 |
---|---|---|---|
Ingredients, % | |||
Corn | 35.32 | 55.20 | 50.67 |
Whey powder | 25.00 | — | — |
Soybean meal, 46.5% CP2 | 19.14 | 24.85 | 30.00 |
DDGS2 | 10.00 | 15.00 | 15.00 |
Soybean oil | 2.50 | — | — |
Enzymatically treated soybean meal3 | 4.00 | — | — |
Calcium carbonate, 38% Ca | 0.85 | 1.05 | 1.15 |
Monocalcium P, 21% P | 0.60 | 1.00 | 1.00 |
Salt | 0.30 | 0.65 | 0.50 |
l-Lysine-HCl | 0.58 | 0.63 | 0.50 |
dl-Methionine | 0.27 | 0.20 | 0.17 |
l-Threonine | 0.21 | 0.23 | 0.18 |
l-Tryptophan | 0.07 | 0.07 | 0.04 |
l-Valine | 0.17 | 0.12 | 0.04 |
Phytase4 | 0.04 | 0.20 | 0.20 |
Mineral–vitamin premix5 | 0.55 | 0.55 | 0.55 |
Zinc oxide | 0.40 | 0.25 | — |
Total | 100 | 100 | 100 |
Calculated analysis | |||
Standardized ileal digestible (SID) amino acids, % | |||
Lysine | 1.39 | 1.30 | 1.32 |
Isoleucine:lysine | 55 | 54 | 60 |
Leucine:lysine | 114 | 126 | 132 |
Methionine:lysine | 38 | 38 | 37 |
Methionine + cysteine:lysine | 59 | 60 | 60 |
Threonine:lysine | 63 | 64 | 64 |
Tryptophan:lysine | 20.6 | 20.2 | 19.3 |
Valine:lysine | 70 | 70 | 69 |
SID lysine:net energy, g/Mcal | 5.23 | 5.21 | 5.32 |
Net energy, kcal/kg | 2,658 | 2,492 | 2,487 |
Ca, % | 0.72 | 0.70 | 0.75 |
STTD P6, % | 0.56 | 0.52 | 0.53 |
1Phases 1, 2, and 3 were fed from 5 to 6, 6 to 10, and 10 to 20, respectively. The phase 2 diet was the only diet that included 441 mg/kg of CTC for pigs on the AB treatment.
2CP, crude protein; DDGS, dried distillers grains with solubles.
3HP 300 (Hamlet Protein Inc., Findlay, OH).
4In phase 1, provided 5,000 phytase units FTU per gram of phytase. In phases 2 and 3, provided 1,350 phytase units FTU per gram of phytase.
5Provided per kilogram of premix: 35.3 g Zn, 35.3 g Fe, 3.7 g Cu, 220.5 mg I, 8.8 g Mn, 100.3 mg Se, 16,534 mg niacin, 8,818 mg pantothenic acid, 2,645 mg riboflavin, 66.1 mg biotin, 661.4 mg folic acid, 440.9 mg pyridoxin, 1,653 mg thiamin, 1,873,910 IU vitamin A, 551,150 IU vitamin D, 20,039 IU vitamin E, 992 mg vitamin K, and 11 mg vitamin B12.
6Standardized total tract digestible P.