Table 3 Water quality parameters measured in shrimp culture tanks treated with Agrococcus spp. (RKDAS1), Rossellomorea Marisflavi (DAS-SCF02), and their mixed culture, compared to untreated controls. Values are compared against optimal reference ranges for shrimp aquaculture based on established water quality guidelines.
Parameter | PCF1 | PFF1 | PFF2 | PFF3 | Optimal range |
|---|---|---|---|---|---|
Ammonia (NH₃-N, mg/L) | 2.4 ± 0.45 | 1.6 ± 0.32 | 1.2 ± 0.23 | 0.95 ± 0.12 | < 1.0 (preferably < 0.5) |
Nitrite (NO2−, mg/L) | 1.0 ± 0.24 | 0.8 ± 0.11 | 0.4 ± 0.16 | 0.2 ± 0.13 | < 0.5 |
Nitrate (NO3−, mg/L) | 12.0 ± 0.22 | 10.0 ± 0.31 | 7.0 ± 0.26 | 5.0 ± 0.32 | < 50 |
Total Organic Carbon (TOC, mg/L) | 53.63 | 32.1 ± 0.23 | 39.0 ± 0.56 | 30.0 ± 0.19 | < 50 (lower is better) |
pH stability | 7.1 ± 0.65 | 7.53 ± 0.54 | 7.6 ± 0. 48 | 7.8 ± 0.65 | 7.5–8.5 |
Dissolved oxygen (mg/L) | 4.1 ± 0.78 | 5.5 ± 0.32 | 6.1 ± 0.62 | 6.7 ± 0.86 | > 5.0 (ideal 5–8) |
Salinity (ppt) | 1.5 ± 0.12 | 1.8 ± 0.16 | 2.0 ± 0.18 | 2.1 ± 0.15 | 1–5 |
Temperature (°C) | 27.5 ± 0.19 | 28.0 ± 0.32 | 28.2 ± 0.24 | 28.3 ± 0.46 | 27–30 °C |
