Table 2 Nutrients leaching into water. Data are presented in mean ± SD.
From: Enhancement of Artemia biomass and cyst production using supplementary feeds: a preliminary study
Nutrients | Treatments | |||||
|---|---|---|---|---|---|---|
T1 | T2 | T3 | T4 | T5 | ||
Nitrite nitrogen (NO2-N) µg/L | Day- 5 | 1.19 ± 0.14a | 1.76 ± 0.27a | 1.47 ± 0.13a | 1.19 ± 0.12a | 0.99 ± 0.03a |
Day- 13 | 2.56 ± 0.20b | 3.01 ± 0.71b | 3.57 ± 0.22b | 3.74 ± 0.17b | 1.34 ± 0.30a | |
Day- 21 | 3.32 ± 0.35ab | 3.77 ± 0.44b | 3.36 ± 0.57ab | 4.62 ± 0.59c | 2.79 ± 0.21a | |
Day- 29 | 4.88 ± 0.41b | 4.39 ± 0.95b | 5.05 ± 0.65b | 4.12 ± 0.84b | 2.94 ± 0.50a | |
Ammonium nitrogen (NH4-N) µg/L | Day- 5 | 0.99 ± 0.37a | 1.01 ± 0.44a | 1.04 ± 0.17a | 1.51 ± 0.49a | 0.63 ± 0.25a |
Day- 13 | 2.12 ± 0.22b | 2.84 ± 0.76b | 3.16 ± 0.33b | 2.39 ± 0.28b | 0.97 ± 0.18a | |
Day- 21 | 4.03 ± 0.66b | 4.79 ± 0.78bc | 5.70 ± 1.00c | 4.18 ± 0.70b | 1.67 ± 0.40a | |
Day- 29 | 3.33 ± 0.53b | 3.08 ± 0.64b | 3.72 ± 0.79b | 2.91 ± 0.58b | 1.09 ± 0.10a | |
Phosphate phosphorus (PO4–4) µg/L | Day- 5 | 1.13 ± 0.30a | 1.32 ± 0.28a | 1.11 ± 0.07a | 1.35 ± 0.29a | 1.05 ± 0.14a |
Day- 13 | 0.88 ± 0.20a | 1.05 ± 0.13a | 0.88 ± 0.25a | 1.81 ± 0.70b | 0.66 ± 0.27a | |
Day- 21 | 0.99 ± 0.27a | 0.83 ± 0.18a | 0.83 ± 0.35a | 1.68 ± 0.60b | 0.66 ± 0.31a | |
Day- 29 | 1.15 ± 0.32a | 1.72 ± 0.64b | 1.15 ± 0.37a | 1.28 ± 0.40ab | 0.88 ± 0.20a | |
Silicate silicon µg/L | Day- 5 | 115 ± 22.1a | 114 ± 24.2a | 117 ± 30.8a | 119 ± 19.3a | 105 ± 24.8a |
Day- 13 | 127 ± 27.5b | 112 ± 19.4b | 131 ± 19.3b | 152 ± 16.9b | 65.3 ± 13.0a | |
Day- 21 | 222 ± 42.1b | 217 ± 24.2b | 202 ± 52.1b | 222 ± 65.3b | 104 ± 12.4a | |
Day- 29 | 124 ± 31.1ab | 145 ± 40.1b | 135 ± 11.9b | 157 ± 18.0b | 89.2 ± 21.7a | |
