Table 7.
Effects of dietary vitamin E supplementation on antioxidant capacity in breeding geese 1.
| Items | Vitamin E/(IU/kg) | SEM | p-Value | |||
|---|---|---|---|---|---|---|
| 0 | 40 | 200 | 2000 | |||
| Liver | ||||||
| MDA/(nmol/mg prot) | 1.47 A | 1.02 BC | 0.77 C | 1.22 AB | 0.08 | 0.003 |
| T-AOC/(mmol/g prot) | 5.36 C | 8.32 AB | 9.11 A | 7.08 B | 0.43 | 0.001 |
| SOD/(U/g prot) | 174.51 C | 217.96 B | 315.05 A | 163.08 C | 16.32 | <0.001 |
| CAT/(U/mg prot) | 53.89 | 51.71 | 56.47 | 50.43 | 1.02 | 0.162 |
| GSH-Px/(U/mg prot) | 122.41 BC | 135.48 B | 187.36 A | 115.59 C | 7.81 | <0.001 |
| Ovary | ||||||
| MDA/(nmol/mg prot) | 2.53 A | 2.32 B | 2.06 C | 2.44 AB | 0.05 | <0.001 |
| T-AOC/(mmol/g prot) | 3.43 b | 4.36 a | 4.48 a | 4.54 a | 0.16 | 0.019 |
| SOD/(U/g prot) | 154.12 C | 171.11 C | 198.61 B | 237.85 A | 8.65 | <0.001 |
| CAT/(U/mg prot) | 12.61 C | 11.85 C | 18.27 A | 15.68 B | 0.71 | <0.001 |
| GSH-Px/(U/mg prot) | 116.52 | 129.69 | 123.94 | 130.78 | 2.37 | 0.120 |
| Egg yolk | ||||||
| MDA/(nmol/mg prot) | 20.56 A | 18.26 AB | 14.79 C | 15.58 BC | 0.71 | 0.005 |
| T-AOC/(mmol/g prot) | 2.03 b | 2.24 ab | 2.40 a | 2.45 a | 0.06 | 0.028 |
| SOD/(U/g prot) | 35.69 C | 47.78 B | 63.82 A | 59.32 A | 2.74 | <0.001 |
| GSH/(mg/g prot) | 32.76 | 35.83 | 41.37 | 38.89 | 1.23 | 0.062 |
a,b Means with different superscripts within each row are significantly different (p < 0.05). A,B,C Means with different superscripts within each row are extremely significantly different (p < 0.01). 1 prot, protein; MDA, malondialdehyde; T-AOC, total antioxidant capacity; SOD, total superoxide dismutase; GSH-Px, glutathione peroxidase; CAT, catalase; GSH, glutathione. For tissue, each value represents the mean of the four replicates (two geese per replicate) in each group. For egg yolk, each value represents the mean of the four replicates (three eggs per replicate) in each group.