Table 10.
Effect of lower levels of inorganic trace minerals on fecal trace element excretion and muscle trace element deposition in growing and fattening pigs.
| Items | 100% ITMs | OTMs | SEM | P-value | ||
|---|---|---|---|---|---|---|
| 30% | 50% | 70% | ||||
| Fecal excretion | ||||||
| Cu, mg/kg | 54.85a | 35.22c | 37.63c | 40.30b | 1.64 | <0.001 |
| Fe, mg/kg | 877.67a | 430.48d | 464.59c | 561.95b | 37.18 | <0.001 |
| Mn, mg/kg | 328.95a | 167.78d | 189.32c | 226.78b | 13.12 | <0.001 |
| Zn, mg/kg | 981.68a | 461.72d | 566.28c | 622.76b | 40.89 | <0.001 |
| Muscle | ||||||
| Cu, mg/kg | 0.51 | 0.46 | 0.49 | 0.55 | 0.02 | 0.278 |
| Fe, mg/kg | 5.10 | 5.14 | 5.33 | 5.73 | 0.18 | 0.558 |
| Mn, mg/kg | 0.52 | 0.37 | 0.42 | 0.52 | 0.02 | 0.087 |
| Zn, mg/kg | 8.04 | 7.71 | 8.53 | 8.92 | 0.18 | 0.049 |
Values are presented as mean and pooled SEM, n = 6. Data in the same row with no or the same letter indicate no significant difference (P > 0.05), while data with different letters indicate a significant difference (P < 0.05). ITMs, inorganic trace minerals; OTMs, organic trace minerals.