Table 6.
Effects of tea tree oil supplementation on antioxidant activity in finishing pigs (n = 6).
| Treatment1 | |||||||
|---|---|---|---|---|---|---|---|
| Sites | Symbol | CON | LTO | MTO | HTO | SEM | P-value |
| Serum | MDA(nmol/ml) | 2.97a | 3.08a | 1.99b | 1.93b | 0.17 | 0.014 |
| CAT(U/ml) | 5.68 | 4.76 | 5.68 | 5.04 | 0.17 | 0.13 | |
| T-SOD(U/ml) | 114.52 | 114.84 | 120.52 | 126.57 | 4.02 | 0.71 | |
| GSH-PX(U/ml) | 879.02b | 889.69b | 963.49a | 966.73a | 10.8 | <0.001 | |
a, bMeans in the same row with different superscripts differ significantly for treatment effect. 1CON (control), pigs receiving a control diet; LTO (low tea tree oil supplemented treatment), pigs receiving a control diet supplemented with 100 mg/kg tea tree oil; MTO (middle tea tree oil supplemented treatment), pigs receiving a control diet supplemented with 200mg/kg tea tree oil; HTO (high tea tree oil supplemented treatment), pigs receiving a control diet supplemented with 300 mg/kg tea tree oil; TTO, tea tree oil. MDA, malondialdehyde; CAT, catalase; T-SOD, total superoxide dismutase; GSH-Px, glutathione peroxidase.