Table 1. Water quality parameters of Nile tilapia fed diets supplemented with plant extracts.
| Control | GLE-5 | GLE-10 | SGLE-5 | SGLE-10 | MxLE-5 | MxLE-10 | |
|---|---|---|---|---|---|---|---|
| Temp (°C) | 30.6±0.15 | 30.7±0.16 | 30.8±0.16 | 30.7±0.17 | 30.8±0.16 | 30.8±0.16 | 30.5±0.16 |
| pH | 7.39±0.02 | 7.16±0.02 | 7.18±0.01 | 7.31±0.03 | 7.21±0.02 | 7.26±0.02 | 7.27±0.02 |
| DO (mg/L) | 4.69±0.05 | 4.15±0.05 | 4.01±0.09 | 4.57±0.15 | 4.45±0.06 | 4.06±0.06 | 4.54±0.05 |
| NH 3N (mg/L) | 0.13±0.01 | 0.18±0.01 | 0.18±0.01 | 0.14±0.01 | 0.17±0.01 | 0.21±0.01 | 0.16±0.01 |
| NO 2N (mg/L) | 0.07±0.01 | 0.09±0.01 | 0.11±0.01 | 0.13±0.01 | 0.12±0.01 | 0.08±0.01 | 0.09±0.01 |
| NO 3N (mg/L) | 0.27±0.01 | 0.24±0.01 | 0.23±0.01 | 0.25±0.01 | 0.26±0.01 | 0.24±0.01 | 0.25±0.01 |
Temp: Temperature; DO: dissolved oxygen; NH 3N: Ammonia-Nitrogen; NO 2N: Nitrite-Nitrogen; NO 3N: Nitrate-Nitrogen; GLE-5: 5g/kg of guava leaf extract; GLE-10: 10g/kg of guava leaf extract; SGLE-5: 5g/kg of star gooseberry leaf extract; SGLE-10: 10g/kg of star gooseberry leaf extract; MxLE-5: 5g/kg of mixture of GLE and SGLE; MxLE-10: 10g/kg of mixture of GLE and SGLE.