Table 7.
Effects of graded levels of dietary squalene supplementation on the antioxidant status of breast muscle in broiler chickens.
| Items | Squalene level (mg/kg) |
SEM |
P-values |
||||||
|---|---|---|---|---|---|---|---|---|---|
| 0 | 250 | 500 | 1,000 | 2,000 | ANOVA | Linear | Quadratic | ||
| MDA (nmol/mg protein) | 0.475a | 0.420a | 0.290b | 0.259b | 0.273b | 0.024 | 0.004 | <0.001 | 0.159 |
| GSH (mg/g protein) | 4.29c | 4.72b,c | 5.32a,b,c | 5.95a | 5.68a,b | 0.194 | 0.029 | 0.003 | 0.344 |
| SOD (U/mg protein) | 98.28 | 83.17 | 88.22 | 94.78 | 99.64 | 3.350 | 0.509 | 0.555 | 0.156 |
| GSH-Px (U/mg protein) | 19.29b | 18.95b | 19.91b | 23.43a,b | 25.34a | 0.810 | 0.029 | 0.003 | 0.246 |
a-cMeans within a row with different superscripts are different at P < 0.05.
Abbreviations: GSH, reduced form of glutathione; GSH-Px, glutathione peroxidase; MDA, malondialdehyde; SOD, superoxide dismutase.