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. 2023 Mar 26;7(1):txad035. doi: 10.1093/tas/txad035

Table 11.

Added vitamin and trace mineral concentrations in boar diets

Count, N1 Weighted average2 Average Ratio to NRC Standard deviation Low 25% Median 75% High
Vitamins
 A, IU/kg 21 11,193 10,410 2.60 1,644 5,733 9,458 9,922 12,000 13,230
 D, IU/kg 21 2,398 2,710 13.5 885.9 1,653 2,077 2,365 2,873 4,499
 E, IU/kg 21 118.4 104.4 2.37 34.6 44.1 77.3 103.4 126.0 173.3
 K, mg/kg 21 3.93 4.12 8.25 2.74 1.32 2.20 4.41 4.74 14.5
 Thiamin, mg/kg 20 2.58 2.53 2.53 1.50 0.25 2.02 2.21 2.99 5.95
 Riboflavin, mg/kg 21 9.25 8.94 2.38 1.36 7.05 7.72 8.82 9.92 12.0
 Niacin, mg/kg 21 46.1 46.4 4.65 6.52 39.4 41.9 44.1 49.6 65.0
 Pantothenic acid, mg/kg 21 32.9 30.9 2.58 6.18 20.0 27.4 30.3 33.1 45.2
 Pyridoxine, mg/kg 21 4.78 4.05 4.05 2.00 0.21 2.76 3.97 4.41 8.85
 B12, μg/kg 21 40.5 39.6 2.64 11.2 20.0 33.7 38.6 39.7 81.0
 Biotin, mg/kg 21 0.47 0.38 1.91 0.14 0.22 0.23 0.36 0.44 0.65
 Folic acid, mg/kg 21 3.04 2.47 1.90 1.59 1.10 1.65 1.93 2.43 8.27
 Choline, mg/kg 16 455.7 534.0 0.43 155.8 250.0 486.7 523.5 629.3 908.5
 C,3 mg/kg 4 192.3 342.3 314.3 137.8 137.8 173.6 378.2 884.3
Trace minerals
 Copper, mg/kg 21 17.5 19.5 3.91 6.91 11.6 15.0 17.0 20.0 43.2
 Manganese, mg/kg 21 47.9 55.1 2.76 27.9 20.0 40.0 50.0 59.4 153.6
 Selenium, mg/kg 21 0.30 0.30 1.00 0.00 0.28 0.30 0.30 0.30 0.30
 Zinc, mg/kg 21 138.7 141.8 2.84 39.2 60.0 125.0 125.7 157.8 256.0
 Iodine, mg/kg 21 0.59 0.64 4.57 0.25 0.30 0.50 0.50 0.70 1.20
 Iron, mg/kg 21 88.2 103.6 1.29 16.9 45.0 100.0 100.0 110.0 140.0
 Chromium,3 mg/kg 14 0.20 0.20 0.01 0.19 0.20 0.20 0.20 0.20
 Carnitine,3 mg/kg 2 220.0 220.0 220.0 220.0 220.0 220.0 220.0

1Respondents who added the nutrient to the diet from the 3,236,400 sows surveyed. Reported values are on a complete-feed basis.

2Sum of the products of the inclusion level multiplied by the size of the production (# of sows), divided by the total number of sows from the participants that provided added levels for that nutrient.

3 NRC (2012) does not provide a recommendation level of the nutrient.