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. 2024 Jan 5;8:txae002. doi: 10.1093/tas/txae002

Table 6.

Composition of experimental diets in experiment 3 (as-fed basis)1

Phase 1 Phase 2 Phase 3
O3 trial feed, % O3 trial feed, % O3 trial feed, %
Ingredient, % 0 3 0 3 0 3
Corn 43.97 40.58 59.30 56.13 56.72 53.30
Soybean meal (47%) 20.00 20.00 32.50 32.50 37.25 37.83
Base mix2 21.13 21.13 — — — —
Enzymatically treated soybean meal3 6.09 6.42 0.78 1.09 — —
Lucrafit TM 504 2.15 2.15 1.25 1.25 — —
Monocalcium phosphate5 1.52 1.58 1.15 1.17 0.84 0.86
Beef tallow 0.86 0.86 1.64 1.54 2.48 2.39
Salt 0.73 0.73 0.60 0.60 0.40 0.40
Limestone, ground 0.41 0.40 0.54 0.54 0.66 0.66
L-Lys 0.68 0.64 0.65 0.61 0.46 0.41
L-Trp 0.10 0.10 0.10 0.09 0.08 0.07
L-Val 0.06 0.10 0.09 0.10 — —
L-Thr 0.20 0.20 0.22 0.20 0.17 0.15
Vitamin premix-nursery6 0.05 0.05 0.05 0.05 — —
Vitamin premix-grow-finish7 — — — — 0.08 0.08
Trace mineral premix8 0.10 0.10 0.08 0.08 0.08 0.08
Phytase9 0.06 0.06 0.06 0.06 0.06 0.06
Copper chloride 0.03 0.03 0.03 0.03 0.03 0.03
Choline chloride 0.03 0.03 — — — —
Zinc oxide 72% 0.32 0.32 0.32 0.32 — —
FXP10 0.40 0.40 0.20 0.20 — —
Liquid methionine11 0.30 0.31 0.21 0.21 0.17 0.15
N-hance10 0.30 0.30 — — — —
CTC 100g 0.25 0.25 — — 0.25 0.25
Oxytetracycline 200 g — — 0.13 0.13 — —
Tiamulin 10 g 0.18 0.18 — — 0.18 0.18
Synthetic red dye — 0.01 — 0.01 — 0.01
Synthetic blue dye 0.01 — 0.01 — 0.01 —
O3 trial feed12 — 3.00 — 3.00 — 3.00
Calculated analysis
Standardized ileal digestible (SID) amino acids, %
 Lys 1.35 1.35 1.30 1.30 1.28 1.28
 Ile:Lys 58 58 58 58 64 64
 Met and Cys:Lys 58 58 58 58 58 58
 Thr:Lys 64 64 64 64 64 64
 Trp:Lys 24 24 24 24 24 24
 Val:Lys 72 72 72 72 70 70
Total Lys, % 1.46 1.46 1.43 1.43 1.42 1.43
NE NRC, kcal/kg 2,630 2,620 2,680 2,680 2,770 2,770
SID Lys:NE, g/Mcal 5.15 5.19 4.83 4.83 4.61 4.61
CP, % 21.79 22.68 21.51 22.00 22.58 23.14
Crude fat, % 4.10 4.42 4.10 4.52 4.80 5.22
Ca, % 0.68 0.68 0.67 0.67 0.70 0.70
P, % 0.67 0.68 0.59 0.59 0.54 0.54
Standardized total tract digestible (STTD) P, % 0.50 0.50 0.47 0.47 0.43 0.43

1Pigs were fed experimental diets on a feed budget with phases 1 and 2 provided at 2.7 and 6.8 kg per pig. Phase 3 was provided for the remainder of the study.

2Quincy Farms, Quincy IL.

3HP300; Hamlet Protein, Findley, OH.

4Purina Animal Nutrition, Arden Hills, MN.

5NexFos; The Mosaic Company, Plymouth, MN.

6Provided per kg of premix: 24,250,869 IU vitamin A; 3,747,862 IU vitamin D3; 220,462 IU vitamin E; 6614 mg menadione; 19,842 mg riboflavin; 97,003 mg niacin; 79,366 mg pantothenic acid; 93 mg vitamin B12; 220 mg biotin; 3,527 mg folic acid; 6,614 mg pyridoxine; 600 mg selenium; and 32,099,551 BXU xylanase.

7Provided per kg of premix: 8,818,498 IU vitamin A; 1,543,237 IU vitamin D3; 44,092 IU vitamin E; 3,307 mg menadione; 6,614 mg riboflavin; 27,558 mg niacin; 26,455 mg pantothenic acid; 26 mg vitamin B12; 375 mg selenium; and 25,623,400 BXU xylanase.

8Provided per kg of premix: 187,500 mg Zn from zinc oxide and zinc sulfate, 95,000 mg Fe from ferrous sulfate, 31,250 mg Mn from manganese sulfate and manganese oxide, 18,750 mg Cu from copper sulfate, and 750 mg I from calcium iodate.

9Axtra PHY Gold (Danisco Animal Nutrition, Cedar Rapids, IA) was included to provide ~1,730 FTU/kg in phase1, 1,875 FTU/kg in phase 2, and 1,920 FTU/kg in phase 3 providing an estimated release of 0.08, 0.11, and 0.12% STTD P, for phase 1, 2, and 3, respectively.

10Ani-Tek, Social Circle, GA.

11Alimet; Novus International Inc., Saint Charles, MS.

12O3 trial feed (NBO3 Technologies LLC, Manhattan, KS) was added at 3% at the expense of corn while adjusting feed grade amino acids and enzymatically treated soybean meal to maintain similar soybean meal levels and amino acid profiles.