Freshwater Prawn (Macrobrachium rosenbergii) Farming
Culture Methods
- Pond Culture: Earthen ponds 0.2–1 ha, 1–1.5 m depth
- Monoculture: Prawns only, optimal feed management
- Polyculture: With carp or tilapia to utilize different pond niches
- Hatchery Seed: PL (post-larvae) 15–30 days old stocked directly
Environmental Requirements
| Parameter | Optimal Range |
|---|
| Temperature | 28-31°C |
| pH | 7.0–8.5 |
| Dissolved Oxygen | > 4 mg/L |
| Water Exchange | 10–20% weekly |
Production Cycle
- Nursery: 20–30 days
- Grow-out: 5–6 months to 60–100 g size
- Survival Rate: 60–80%
- Yield: 1–2 tons/ha/crop
Post-Harvest Processing
- Harvest by draining pond or seine netting
- Chill immediately in ice
- Grading by size
- Processing into fresh, frozen, or value-added prawn products
