Table 2.
Serum ion level of O. niloticus following Cu, Pb, and CYP exposures
| Ion level | 4 days | 21 days |
|---|---|---|
| Na (mmol/l) | ||
| Control | 178.6 ± 2.14 ax | 182.2 ± 1.34 ax |
| Cu | 168.4 ± 2.39 ax | 135.1 ± 2.88 by |
| Pb | 166.8 ± 2.50 ax | 125.9 ± 3.62 by |
| CYP | 109.3 ± 1.92 bx | 126.3 ± 4.19 bx |
| K (mmol/l) | ||
| Control | 5.20 ± 0.18 ax | 5.06 ± 0.29 ax |
| Cu | 5.14 ± 0.12 ax | 6.87 ± 0.37 by |
| Pb | 5.19 ± 0.15 ax | 7.07 ± 0.32 by |
| CYP | 5.26 ± 0.13 ax | 7.14 ± 0.43 by |
| Cl (mmol/l) | ||
| Control | 161.5 ± 2.33 ax | 169.8 ± 2.12 ax |
| Cu | 171.3 ± 2.61 ax | 111.2 ± 1.34 by |
| Pb | 163.4 ± 2.13 ax | 102.3 ± 2.27 by |
| CYP | 105.2 ± 3.27 bx | 105.1 ± 2.07 bx |
Values are expressed as mean ± standard error (N = 6) Letters a and b show the differences between groups at the same time, and letters x and y show differences between time for the same group (P < 0.05)