Table 3.
Effect of purple corn extract on plasma antioxidant activity in laying hen.
| Items | PCE supplemental levels (mg/kg) | SEM | P- value | ||||
|---|---|---|---|---|---|---|---|
| 0 | 120 | 240 | 360 | Linear | Quadratic | ||
| 93-week | |||||||
| TAC, U/mL | 5.49 | 6.43 | 6.08 | 6.24 | 0.57 | 0.409 | 0.538 |
| SOD, U/mL | 18.15 | 19.40 | 18.34 | 18.82 | 0.51 | 0.711 | 0.753 |
| GPX, U/mL | 224.03 | 237.50 | 209.30 | 197.58 | 5.95 | 0.000 | 0.000 |
| CAT, U/mL | 4.14 | 4.48 | 4.35 | 4.73 | 0.23 | 0.170 | 0.389 |
| MDA, nmol/mL | 11.21 | 7.64 | 6.99 | 7.02 | 0.54 | 0.000 | 0.000 |
| 96-week | |||||||
| TAC, U/mL | 5.54 | 5.75 | 8.77 | 8.31 | 0.56 | 0.000 | 0.000 |
| SOD, U/mL | 19.53 | 19.49 | 20.82 | 20.35 | 0.39 | 0.062 | 0.064 |
| GPX, U/mL | 162.90 | 165.39 | 157.75 | 144.57 | 1.74 | 0.000 | 0.000 |
| CAT, U/mL | 6.22 | 6.23 | 5.81 | 5.65 | 0.25 | 0.060 | 0.114 |
| MDA, nmol/mL | 9.00 | 7.32 | 7.09 | 7.34 | 0.48 | 0.009 | 0.003 |
| 99-week | |||||||
| TAC, U/mL | 3.38 | 7.47 | 5.19 | 8.11 | 0.74 | 0.034 | 0.100 |
| SOD, U/mL | 19.04 | 18.92 | 18.58 | 20.90 | 0.49 | 0.022 | 0.002 |
| GPX, U/mL | 187.21 | 200.78 | 183.04 | 188.76 | 4.07 | 0.482 | 0.500 |
| CAT, U/mL | 4.26 | 4.26 | 4.08 | 4.64 | 0.22 | 0.364 | 0.315 |
| MDA, nmol/mL | 10.66 | 7.38 | 7.92 | 7.72 | 0.60 | 0.013 | 0.005 |
| Mean | |||||||
| TAC, U/mL | 4.88 | 6.41 | 6.60 | 7.46 | 0.39 | 0.000 | 0.000 |
| SOD, U/mL | 19.01 | 19.27 | 19.00 | 20.04 | 0.29 | 0.007 | 0.019 |
| GPX, U/mL | 192.19 | 202.51 | 185.69 | 176.97 | 3.45 | 0.000 | 0.000 |
| CAT, U/mL | 4.86 | 4.98 | 4.90 | 5.02 | 0.16 | 0.956 | 0.902 |
| MDA, nmol/mL | 10.11 | 7.40 | 7.26 | 7.28 | 0.31 | 0.000 | 0.000 |
TAC, total antioxidant capacity; SOD, superoxide dismutase; MDA, malondialdehyde; GPX, glutathione peroxidase; CAT, catalase; SEM, standard error of mean.