Table 9.
Effects of the dietary replacement of inorganic trace minerals with lower levels of organic trace minerals on the antioxidant capacity of growing-finishing pigs.
| Items | 100% ITMs | OTMs | SEM | P-value | ||
|---|---|---|---|---|---|---|
| 30% | 50% | 70% | ||||
| Serum | ||||||
| T-AOC (mM/L) | 0.58b | 0.68ab | 0.67ab | 0.73a | 0.02 | 0.040 |
| MDA (nM/mL) | 1.65a | 1.46b | 1.44b | 1.36b | 0.04 | 0.029 |
| GSH-px (IU/L) | 509.53 | 532.40 | 628.97 | 684.88 | 32.31 | 0.177 |
| CuZn-SOD (IU/mL) | 89.96b | 109.47a | 116.64a | 108.47a | 3.71 | 0.035 |
| Mn-SOD (IU/mL) | 48.67a | 35.46ab | 22.43bc | 16.21c | 4.23 | 0.004 |
| T-SOD (IU/mL) | 124.67 | 138.63 | 139.08 | 144.93 | 3.42 | 0.191 |
| Liver | ||||||
| T-AOC (nM/g prot) | 0.06 | 0.06 | 0.06 | 0.07 | 0.003 | 0.664 |
| MDA (nM/mg prot) | 0.13 | 0.14 | 0.11 | 0.09 | 0.002 | 0.318 |
| GSH-Px (IU/mg prot) | 31.10c | 35.06b | 37.94b | 41.56a | 0.59 | 0.001 |
| CuZn-SOD (IU/mg prot) | 368.73c | 375.66bc | 390.57ab | 398.21a | 4.43 | 0.037 |
| Mn-SOD (IU/mg prot) | 78.19 | 82.33 | 81.65 | 83.29 | 0.84 | 0.136 |
| T-SOD (IU/mg prot) | 446.92c | 457.99bc | 472.22ab | 481.50a | 4.76 | 0.017 |
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; T-AOC, total antioxidant capacity; MDA, malondialdehyde; GSH-px, glutathione peroxidase; prot, protein; CuZn-SOD, copper-zinc superoxide dismutase; Mn-SOD, manganese superoxide dismutase; T-SOD, total superoxide dismutase.