Table 6.
Effect of pendimethalin activity in the liver of Hypophthalmichthys nobilis (bighead carp).
| Parameters (hours) | Groups | |||
|---|---|---|---|---|
| T0 (0.0 mg/L) | T1 (0.25 mg/L) | T2 (0.50 mg/L) | T3 (0.75 mg/L) | |
| Reactive oxygen species (optical density) | ||||
| 72 | 0.12 ± 0.04 | 0.13 ± 0.05 | 0.13 ± 0.03 | 0.15 ± 0.02 |
| 96 | 0.12 ± 0.06 | 0.13 ± 0.03 | 0.22 ± 0.02∗ | 0.31 ± 0.06∗ |
| 120 | 0.13 ± 0.07 | 0.15 ± 0.02 | 0.27 ± 0.01∗ | 0.42 ± 0.07∗ |
| Thiobarbituric acid reactive substances (nmol/TBARS formed/mg protein/min) | ||||
| 72 | 33.02 ± 0.09 | 34.31 ± 0.15 | 34.09 ± 0.02 | 36.76 ± 0.03 |
| 96 | 33.47 ± 0.34 | 33.79 ± 0.25 | 35.23 ± 0.05 | 39.09 ± 0.03∗ |
| 120 | 33.41 ± 0.38 | 33.90 ± 0.01 | 39.12 ± 0.02∗ | 42.64 ± 0.03∗ |
| Glutathione contents (μmol/g tissue) | ||||
| 72 | 1.42 ± 0.10 | 1.43 ± 0.18 | 1.41 ± 0.09 | 1.39 ± 0.02 |
| 96 | 1.45 ± 0.04 | 1.41 ± 0.04 | 1.38 ± 0.04 | 1.12 ± 0.04∗ |
| 120 | 1.44 ± 0.05 | 1.37 ± 0.04 | 1.03 ± 0.04∗ | 1.01 ± 0.04∗ |
| Total protein contents (μg/mg tissue) | ||||
| 72 | 5.26 ± 0.4 | 5.22 ± 0.01 | 5.14 ± 0.07 | 5.03 ± 0.08 |
| 96 | 5.48 ± 0.02 | 5.16 ± 0.01 | 5.04 ± 0.01 | 4.99 ± 0.04 |
| 120 | 5.57 ± 0.09 | 5.07 ± 0.04 | 4.42 ± 0.06∗ | 4.16 ± 0.01∗ |
| Superoxide dismutase (units/mg protein) | ||||
| 72 | 12.45 ± 0.31 | 12.10 ± 0.19 | 11.33 ± 0.23 | 10.89 ± 0.12 |
| 96 | 12.56 ± 0.12 | 11.89 ± 0.25 | 9.02 ± 0.05∗ | 8.91 ± 0.21∗ |
| 120 | 12.48 ± 0.11 | 11.81 ± 0.33 | 8.97 ± 0.11∗ | 8.41 ± 0.15∗ |
| Catalase (units/min) | ||||
| 72 | 5.31 ± 0.08 | 5.29 ± 0.11 | 5.11 ± 0.13 | 5.08 ± 0.01 |
| 96 | 5.33 ± 0.05 | 5.11 ± 0.06 | 4.29 ± 0.03∗ | 4.11 ± 0.07∗ |
| 120 | 5.41 ± 0.09 | 5.07 ± 0.07 | 4.24 ± 0.11∗ | 4.07 ± 0.08∗ |
In each row, values (mean ± SE) bearing asterisks differ significantly (P < 0.05) from that of values in untreated (T0) fish.