Table 5.
The composition of supplemented vitamins and trace minerals in early-finishing diets (60 to 90 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) | 405 | 4,656 | 3.58 | 3.58 | 1,775.468 | 1,300 | 3,930 | 4,600 | 5,073 | 22,400 |
| Vitamin D (IU) | 404 | 2,058 | 13.7 | 13.7 | 963.415 | 150 | 1,320 | 2,400 | 2,740 | 6,370 |
| Vitamin E (IU) | 402 | 23.0 | 2.09 | 2.09 | 30.138 | 0.80 | 10.0 | 12.6 | 22.1 | 240 |
| Vitamin K (mg) | 355 | 4.94 | 9.87 | 9.87 | 29.978 | 0.20 | 1.05 | 1.60 | 4.16 | 400 |
| Thiamine (mg) | 227 | 1.17 | 1.17 | 1.17 | 0.707 | 0.004 | 0.70 | 1.00 | 1.60 | 7.50 |
| Riboflavin (mg) | 358 | 3.16 | 1.58 | 1.58 | 1.414 | 0.30 | 2.20 | 2.56 | 4.00 | 8.00 |
| Vitamin B6 (mg) | 277 | 1.54 | 1.54 | 1.54 | 1.989 | 0.02 | 0.64 | 1.00 | 1.92 | 16.0 |
| Vitamin B12 (μg) | 174 | 47.7 | 9.54 | 7.95 | 319.338 | 0.01 | 8.00 | 12.0 | 18.3 | 3,000 |
| Pantothenic acid (mg) | 301 | 10.7 | 1.53 | 1.53 | 5.972 | 0.10 | 5.60 | 8.55 | 16.0 | 36.0 |
| Niacin (mg) | 263 | 15.0 | 0.50 | 2.00 | 7.455 | 0.48 | 9.60 | 15.0 | 20.0 | 45.0 |
| Folic acid (mg) | 144 | 0.95 | 3.16 | 3.16 | 2.934 | 0.08 | 0.22 | 0.34 | 0.60 | 20.0 |
| Biotin (mg) | 137 | 0.29 | 5.89 | 5.89 | 1.085 | 0.02 | 0.06 | 0.09 | 0.16 | 10.0 |
| Choline (mg) | 140 | 188 | 0.63 | 0.63 | 100.018 | 0.10 | 120 | 182 | 240 | 480 |
| Trace minerals (mg/kg) | ||||||||||
| Copper | 393 | 18.4 | 5.26 | 5.26 | 19.535 | 1.43 | 14.0 | 15.5 | 17.5 | 200 |
| Iron | 400 | 228 | 4.56 | 4.56 | 142.305 | 0.13 | 99.1 | 199 | 389 | 638 |
| Manganese | 395 | 58.3 | 29.1 | 29.1 | 28.666 | 0.03 | 33.0 | 60.0 | 79.0 | 334 |
| Zinc | 394 | 61.8 | 1.24 | 1.24 | 54.888 | 0.12 | 48.0 | 58.8 | 62.3 | 1,075 |
| Selenium | 274 | 0.37 | 2.46 | 1.47 | 1.115 | 0.03 | 0.24 | 0.30 | 0.32 | 18.6 |
| Iodine | 258 | 1.61 | 11.5 | 11.5 | 1.814 | 0.03 | 0.38 | 0.78 | 1.77 | 7.67 |
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].