Table 2 water quality parameters (Mean ± SD) during 70 days of the experimental period
Parameters | Rearing period (daRearing period (days) | |||||
|---|---|---|---|---|---|---|
0 | 14 | 28 | 42 | 56 | 70 | |
Temperature (°C) | 28.10 ± 0.35 | 28.10 ± 1.10 | 28.71 ± 0.70 | 28.1 ± 0.80 | 28.71 ± 0.70 | 27.96 ± 0.70 |
Dissolved oxygen (mg/l) | 5.56 ± 0.25 | 5.46 ± 0.35 | 5.56 ± 0.32 | 5.55 ± 0.28 | 5.55 ± 0.38 | 5.55 ± 0.37 |
pH | 7.20 ± 0.03 | 7.34 ± 0.10 | 7.35 ± 0.10 | 7.36 ± 0.10 | 7.22 ± 0.20 | 7.17 ± 0.20 |
Transparency (cm) | 36.60 ± 4.44 | 36.61 ± 3.70 | 37.23 ± 3.40 | 37.23 ± 4.00 | 38.85 ± 4.10 | 36.28 ± 2.20 |
Ammonia (mg/l) | 0.58 ± 0.02 | 0.50 ± 0.05 | 0.50 ± 0.05 | 0.50 ± 0.00 | 0.50 ± 0.08 | 0.50 ± 0.02 |
Nitrite (mg/l) | 0.03 ± 0.00 | 0.03 ± 0.00 | 0.03 ± 0.00 | 0.03 ± 0.00 | 0.03 ± 0.00 | 0.03 ± 0.00 |
Nitrate (mg/l) | 0.12 ± 0.01 | 0.12 ± 0.01 | 0.12 ± 0.02 | 0.12 ± 0.05 | 0.12 ± 0.05 | 0.12 ± 0.05 |