| Characteristics |
Intensity of farming systems |
| Semi-intensive |
Intensive |
| Pond size (ha) |
2.5-15.7 |
1.3-2.1 |
| Stocking density (PL/m) |
15-30 |
30-50 |
| Survival rate (%) |
75.1-95.9 |
60.2-84.2 |
| Water exchange (%) |
0-5 |
3-30 |
| Aeration (HP ha-1) |
0-4 |
4-12 |
| Yield (ton/ha/yr) |
5.9 |
8.1 |
| Number of crops/yr |
3.2-5.2 |
2.4-3.6 |
| Production (ton/yr) |
2912,1 |
412.1 |
| Fertilizers used (ton/ha/yr) |
Urea<0.25, TSP<0.03 |
Urea<0.50, TSP <0.10 |
| Feed consumption (ton/yr) |
2795.0 |
570.7 |
| Feed used |
Natural and pelleted feed |
Pelleted feed |
| Protein feed (%) |
40-30 |
40-35 |
| FCR |
0.8-1.2 |
1.3-1.5 |
| Chemicals used |
Yes |
Yes |
| Direct formal jobs (persons/ha) |
0.34 |
0.65 |
| Direct seasonal jobs (persons/ha)* |
0.06 |
| Indirect jobs (persons/ha)* |
0.63 |
| Disease problems |
Rare (IMNV and IHHNV) |
Rare (IMNV and IHHNV) |
| Operational costs |
Moderate to high |
Moderate to high |
| Environmental impact |
Relatively little |
Relatively little |
| Social implications |
Moderate to high |
Moderate to high |
| Economic proliferation |
Commercial |
Commercial |
| Sustainability concerns |
Moderate to low |
Moderate to low |
|
