Table 5. Intestinal immunity and oxidative status of 42-day-old Cherry Valley ducks.
| Items† | Control | Antibiotic | Synbiotic | SEM* |
|---|---|---|---|---|
| Jejunum | ||||
| T-SOD (U/mg protein) | 34.3 | 31.3 | 40.8 | 2.2 |
| MDA (nmol/mg protein) | 0.585 | 0.378 | 0.489 | 0.045 |
| GSH (mg/g protein) | 15.2 | 15.6 | 15.2 | 0.8 |
| SIgA (µg/mg protein) | 0.98 | 1.05 | 1.05 | 0.05 |
| IgG (µg/mg protein) | 29.2 | 35.3 | 33.3 | 1.7 |
| IL-1β (ng/g protein) | 2.91 | 3.30 | 2.76 | 0.12 |
| TNF-α (ng/g protein) | 14.0 | 17.2 | 12.4 | 1.0 |
| Ileum | ||||
| T-SOD (U/mg protein) | 28.7b | 46.3a | 41.6a | 3.2 |
| MDA (nmol/mg protein) | 0.539a | 0.542a | 0.421b | 0.022 |
| GSH (mg/g protein) | 19.7 | 24.1 | 21.7 | 3.0 |
| SIgA (µg/mg protein) | 0.83 | 1.25 | 1.02 | 0.07 |
| IgG (µg/mg protein) | 28.1 | 35.7 | 33.9 | 1.9 |
| IL-1β (ng/g protein) | 2.89 | 3.54 | 2.90 | 0.19 |
| TNF-α (ng/g protein) | 14.0 | 15.8 | 11.7 | 1.0 |
a, b
Means within a row with different superscripts are different at P<0.05.
†
IgG, immunoglobulin G; SIgA, secretory immunoglobulin A; IL-1β, interleukin-1β; TNF-α, tumor necrosis factor-α; MDA, malondialdehyde; GSH, reduced glutathione; T-SOD, total superoxide dismutase.
*
SEM, standard error of the mean (n=6).