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

Table 4.

Added vitamin and trace mineral concentrations in phase 3 nursery diets (11 to 23 kg)

Count, N1 Weighted average2 Average Ratio to NRC Standard deviation Low 25% Median 75% High
Vitamins
 A, IU/kg 36 6,903 5,951 3.40 2,645 1,951 3,722 5,457 7,788 12,472
 D, IU/kg 36 1,608 1,681 8.41 644.3 882.0 1,102 1,653 1,984 4,160
 E, IU/kg 36 57.6 44.1 4.01 25.9 11.0 30.0 44.1 48.1 125.0
 K, mg/kg 36 3.07 3.14 6.29 1.42 0.53 2.56 3.25 3.53 8.69
 Thiamin, mg/kg 11 2.87 2.75 2.75 1.63 0.45 2.07 2.21 3.21 5.79
 Riboflavin, mg/kg 36 6.78 6.62 2.21 1.89 3.30 4.9 6.81 8.27 10.8
 Niacin, mg/kg 36 36.4 40.2 1.34 10.7 16.5 30.0 42.9 49.6 66.1
 Pantothenic acid, mg/kg 36 24.8 23.6 2.62 7.03 10.6 17.9 24.4 27.5 37.4
 Pyridoxine, mg/kg 12 4.82 3.42 1.14 2.24 0.88 1.28 3.06 5.00 7.00
 B12, μg/kg 36 29.6 29.6 1.97 9.10 15.6 22.3 30.4 33.1 50.2
 Biotin, mg/kg 13 0.40 0.22 4.33 0.15 0.09 0.11 0.20 0.22 0.65
 Folic acid, mg/kg 14 2.53 1.22 4.07 1.23 0.04 0.34 0.75 1.60 4.49
 Choline, mg/kg 5 240.5 286.7 0.72 170.4 48.0 220.5 225.0 390.0 550.0
Trace minerals
 Copper, mg/kg 36 95.9 107.5 21.5 86.9 6.10 16.2 125.0 165.2 268.5
 Manganese, mg/kg 36 30.7 31.4 10.5 7.03 11.6 29.7 30.0 33.1 55.0
 Selenium, mg/kg 36 0.30 0.30 1.19 0.01 0.27 0.30 0.30 0.30 0.30
 Zinc, mg/kg 36 290.3 316.6 3.96 445.5 75.0 100.0 110.2 158.2 1,910
 Iodine, mg/kg 36 0.44 0.44 3.12 0.23 0.21 0.30 0.33 0.51 1.17
 Iron, mg/kg 36 84.5 103.2 1.03 34.9 45.0 79.0 100.0 110.2 238.7
 Chromium,3 mg/kg 4 0.20 0.17 0.05 0.08 0.17 0.20 0.20 0.20
 Cobalt,3 mg/kg 1 0.39 0.39

1Respondents who added the nutrient to the diet from the 4,245,700 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.