Water Quality Standard
Optimal Water Parameters & Tolerance Thresholds
| Water Parameter | Optimal Range | Critical Stress Limit | Field Management SOP |
|---|---|---|---|
| Water Salinity | 15 – 30 ppt | < 8 ppt | Best cultured in coastal marine creeks and estuaries with consistent sea salinity. |
| Dissolved Oxygen (DO) | > 5.5 mg/L | < 4.0 mg/L | Black Tigers are benthic bottom-dwellers; bottom diffusion or spiral aeration is highly beneficial. |
Financial Economics
Cost-of-Production & Margin Worksheet (Per Acre)
Estimated commercial financials based on current feed, seed, electricity, and farmgate spot rates.
Seed Input
₹ 55,000 / Acre (SPF Monodon Seed)
Feed Cost (60%)
₹ 4,80,000 / Acre
Power / Utility
₹ 65,000 / Acre
Inputs & Minerals
₹ 35,000 / Acre
Gross Realization
₹ 9,10,000 (1,300 kg 15-count @ ₹700/kg)
Net Profit Margin
₹ 2,60,000 – ₹ 3,20,000 per Acre
Nutrition & Feeding Protocol
Formulated Feed Protein:38% to 42% High-Protein Squid/Fishmeal Pelleted Feed
Meal Schedule:3 to 4 meals daily with heavy late-evening ration (nocturnal feeders)
Checktray Inspection Window:Inspect checktrays at 2.5 to 3.0 hours post-broadcast
Standard CIBA Operating Procedures (SOP)
- Use only certified SPF (Specific Pathogen Free) broodstock-derived post-larvae (PL15).
- Incorporate squid meal and natural live feed (polychaetes/artemia) during early nursery phase.
- Black Tigers require deeper water (> 1.3 meters) with high shade and clean sandy bottoms.