Table 1.
Physicochemical analysis of water for experimental freshwater fish bighead carp (Hypophthalmichthys nobilis).
| Parameters | Experimental period | ||
|---|---|---|---|
| Start | Mid | End | |
| Total hardness (CaCO3, mg/L) | 173.5 ± 1.90 | 173.4 ± 1.91 | 173.3 ± 1.88 |
| Calcium (mg/L) | 38.8 ± 0.77 | 38.7 ± 0.73 | 38.7 ± 0.87 |
| Dissolved oxygen (mg/L) | 7.85 ± 0.14 | 7.85 ± 0.15 | 7.87 ± 0.13 |
| pH | 7.6 ± 0.01 | 7.6 ± 0.01 | 7.6 ± 0.01 |
| Total dissolved solid (mg/L) | 177.7 ± 3.29 | 177.8 ± 2.98 | 177.8 ± 3.38 |
| Alkalinity (mg/L) | 179.7 ± 0.44 | 179.6 ± 0.45 | 179.7 ± 0.40 |
| Sodium (mg/L) | 11.3 ± 0.29 | 11.5 ± 0.27 | 11.4 ± 0.25 |
| Electrical conductivity at 25°C (μmhos/cm) | 406.5 ± 3.35 | 406.6 ± 3.41 | 407.0 ± 3.65 |
| Potassium (mg/L) | 1.5 ± 0.13 | 1.5 ± 0.14 | 1.5 ± 0.15 |
| Chlorides (mg/L) | 9.97 ± 0.05 | 9.96 ± 0.06 | 9.97 ± 0.07 |
| Water temperature (°C) | 24.7 ± 0.30 | 24.7 ± 0.29 | 24.7 ± 0.30 |