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. 2020 Nov 14;98(12):skaa363. doi: 10.1093/jas/skaa363

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.