Table 1.
The composition of supplemented vitamins and trace minerals in creep diets (weanling to 8 kg)
| Item1) | N | Average | Ratio to NRC2) | Ratio to CHN3) | SD | Minimum | The 25th percentile | Median | The 75th percentile | Maximum |
|---|---|---|---|---|---|---|---|---|---|---|
| Vitamins (unit/kg) | ||||||||||
| Vitamin A (IU) | 151 | 10,280 | 4.67 | 4.67 | 3,848.980 | 1,300 | 8,080 | 10,000 | 12,000 | 31,850 |
| Vitamin D (IU) | 144 | 3,540 | 16.1 | 16.1 | 1,726.678 | 150 | 2,500 | 3,000 | 5,150 | 10,000 |
| Vitamin E (IU) | 150 | 29.4 | 1.84 | 1.84 | 28.461 | 0.40 | 11.0 | 20.0 | 40.0 | 210 |
| Vitamin K (mg) | 113 | 4.47 | 8.95 | 8.95 | 9.626 | 0.03 | 1.60 | 2.80 | 5.27 | 84.0 |
| Thiamine (mg) | 91 | 2.77 | 1.85 | 1.85 | 4.986 | 0.04 | 1.20 | 2.00 | 3.00 | 48.0 |
| Riboflavin (mg) | 109 | 5.95 | 1.49 | 1.49 | 3.598 | 0.04 | 4.00 | 6.00 | 7.50 | 32.0 |
| Vitamin B6 (mg) | 90 | 3.31 | 0.47 | 1.66 | 2.604 | 0.30 | 1.50 | 2.49 | 4.50 | 15.0 |
| Vitamin B12 (μg) | 70 | 185 | 9.25 | 9.25 | 884.846 | 5.00 | 24.0 | 32.0 | 42.0 | 6,000 |
| Pantothenic acid (mg) | 102 | 21.3 | 1.77 | 1.77 | 14.036 | 0.24 | 11.9 | 16.0 | 28.5 | 100.0 |
| Niacin (mg) | 89 | 27.1 | 0.90 | 1.35 | 14.303 | 1.80 | 19.8 | 25.2 | 35.0 | 120 |
| Folic acid (mg) | 71 | 2.31 | 7.70 | 7.70 | 5.873 | 0.20 | 0.64 | 1.20 | 1.63 | 40.0 |
| Biotin (mg) | 64 | 0.20 | 2.55 | 2.55 | 0.123 | 0.04 | 0.11 | 0.18 | 0.25 | 0.80 |
| Choline (mg) | 25 | 448 | 0.75 | 0.75 | 379.264 | 100 | 295 | 300 | 500 | 2,000 |
| Trace minerals (mg/kg) | ||||||||||
| Copper | 138 | 82.5 | 13.7 | 13.7 | 36.123 | 3.00 | 68.4 | 77.4 | 103 | 313 |
| Iron | 141 | 258 | 2.58 | 2.45 | 212.296 | 19.0 | 132 | 184 | 385 | 1,270 |
| Manganese | 140 | 70.3 | 17.6 | 17.6 | 30.193 | 2.00 | 45.8 | 76.3 | 87.4 | 200 |
| Zinc | 141 | 425 | 4.25 | 3.86 | 498.840 | 22.8 | 69.0 | 100.0 | 820 | 1,980 |
| Selenium | 79 | 0.41 | 1.35 | 1.35 | 0.351 | 0.10 | 0.30 | 0.35 | 0.40 | 3.00 |
| Iodine | 74 | 1.92 | 13.7 | 13.7 | 1.936 | 0.10 | 0.40 | 0.90 | 3.62 | 5.30 |
The N represents the number of farms; SD, standard deviation.
1)
All reported values are on an as-fed basis and represent vitamins and trace minerals provided the following per kilogram of diet for pigs.
2)
Values represent average supplementation rates as a proportion to dietary vitamin and trace mineral requirements recommendation from the NRC [7].
3)
Values represent average supplementation rates as a proportion to dietary vitamin and trace mineral requirements recommendation from the China’s Feeding Standard of Swine [9].