Figure 1.
Figure 2.
Figure 3.
Figure 4.
Growth and nutritional performance of P_ vannamei reared under different stocking densities in a biofloc system for 5 weeks
| Parameters | SD1 | SD2 | SD3 | SD4 |
|---|---|---|---|---|
| FBW (g) | 9.60±0.53 a | 9.34±0.44 a | 8.25±0.55 b | 7.01±0.66 c |
| BWG (g) | 5.75±0.53 a | 5.49±0.45 a | 4.40±0.55 b | 3.16±0.66 c |
| SGR (%/day) | 2.60±0.16 a | 2.53±0.13 a | 2.17±0.19 b | 1.70±0.27 c |
| FCR | 1.20±0.11 c | 1.27±0.09 c | 1.69±0.22 b | 2.34±0.55 a |
| FE (%) | 83.92±7.73 a | 78.99±6.50 a | 59.88±7.54 b | 44.59±9.29 c |
| SR (%) | 97.22±4.30 a | 95.83±3.72 a | 90.74±1.43 b | 88.19±2.84 c |
Characteristics of the treatments used based on different stocking densities, in 35 days of the experiment
| Treatment 1 | Stocking density | Number of shrimp in the rearing tank (150 L) | No. | WE (daily) |
|---|---|---|---|---|
| 0.5–1% WE | SD1 | 12 | 0.308 g/L | Treatment 1 |
| 0.5–1% WE | SD2 | 24 | 0.616 g/L | Treatment 2 |
| 0.5–1% WE | SD3 | 36 | 0.924 g/L | Treatment 3 |
| 0.5–1% WE | SD4 | 48 | 1.23 g/L | Treatment 4 |