Table 5.
The effects of dietary Boswellia serrate resin extract (BSRE) on the antioxidant and immune status of O. niloticus.
| Parameters | BSRE0 | BSRE5 | BSRE10 | BSRE15 | SEM | Regression Analysis # | |
|---|---|---|---|---|---|---|---|
| Linear | Quadratic | ||||||
| Antioxidant capacity | |||||||
| SOD (U L−1) | 3.77 d | 4.77 c | 6.36 b | 7.08 a | 0.39 | 0.00 | 0.39 |
| CAT (U L−1) | 124.00 d | 162.50 c | 190.00 b | 201.50 a | 9.01 | 0.00 | 0.00 |
| GSH (mmol L−1) | 2.67 b | 3.05 b | 3.75 a | 3.78 a | 0.14 | 0.00 | 0.11 |
| Immunological indices | |||||||
| Lysozyme (µg mL−1) | 4.61 c | 5.23 b | 6.42 a | 6.41 a | 0.23 | 0.00 | 0.00 |
| MPO (U L−1) | 18.50 d | 26.40 c | 30.10 b | 36.65 a | 1.99 | 0.00 | 0.00 |
| NO (µmol L−1) | 79.50 a | 40.50 b | 31.50 c | 29.00 d | 6.12 | 0.00 | 0.00 |
# The regressions were considered significant at p < 0.05. Variation in the data was expressed as pooled SEM; Mean values in the same row with different superscripts differ significantly (p < 0.05). CAT: catalase, SOD: superoxide dismutase, GSH: reduced glutathione, NO: nitric oxide, MPO: myeloperoxidase. a,b,c,d Means within the same row carrying different superscripts are significantly different at (p < 0.05).