Table 9.
Serum antioxidant activity of broilers after dietary minerals (Zn-Cr and Se) supplementation under heat stress conditions. (n = 8).
| Treatments | Total Antioxidant Capacity (TAC), mM/L | Malondialdehyde (MDA), nmol/mL |
|---|---|---|
| (A) Effect of Zn-Cr mixture | ||
| Without Zn-Cr | 0.61 b | 1.87 |
| With Zn-Cr | 0.71 a | 1.72 |
| SEM | 0.03 | 0.06 |
| p-value | 0.0088 | 0.0657 |
| (B) Effect of organic Se levels | ||
| Without Se | 0.59 b | 1.99 a |
| With LSe ≠ | 0.66 ab | 1.67 b |
| With HSe ≠≠ | 0.73 a | 1.72 b |
| SEM | 0.03 | 0.007 |
| p-value | 0.0145 | 0.0083 |
| (A × B) Effect of interaction between Zn-Cr mixture and organic Se levels | ||
| T1 | 0.50 b | 3.23 a |
| T2 | 0.69 a | 2.75 b |
| T3 | 0.62 ab | 2.70 b |
| T4 | 0.72 a | 2.68 b |
| T5 | 0.71 a | 2.65 b |
| T6 | 0.75 a | 2.76 b |
| SEM | 0.04 | 0.10 |
| p-value | 0.0077 | 0.0041 |
a,b = means with different letters in the same column are significantly different at (p < 0.05). SEM, standard error of the mean. ≠ LSe = low selenium concentration, ≠≠ HSe = high selenium concentration. T1 = (basal diet, no additive), T2 = T1 + 100 mg Zn + 1.5 mg Cr/Kg diet (Zn-Cr), T3 = T1 + 0.6 mg Se/Kg, T4 = T1 + 0.9 mg Se/Kg, T5 = T1 + (100 mg Zn + 1.5 mg Cr + 0.6 mg Se) and T6 = T1 + (100 mg Zn + 1.5 mgCr + 0.9 mg Se).