Composite Freshwater Carp (Rohu, Catla & Mrigal)
Commercial aquaculture blueprint covering target water quality tolerances, extruded floating pellet nutrition, biosecure disease prophylaxis, and PMMSY 40%–60% capital grant eligibility.
Earthen Fish Pond (1 Acre to 2.5 Acres)
Tailored to maintain high biomass carrying capacity, dissolved oxygen stability, and non-stress environmental conditions.
- The backbone of Indian freshwater aquaculture: utilizes all ecological zones of pond (Catla: surface, Rohu: column, Mrigal: bottom)
- High consumer preference and steady year-round demand in regional APMC fish mandis across India
- Thrives on sinking mash feed, mustard oil cake, rice bran, and modern 24%–28% crude protein floating pellets
- Eligible for PMMSY 40%–60% pond construction and input subsidy + ₹1.5L/acre Matsya KCC loan
Stocking Density & Survival Targets
Target Water Chemistry Parameters
Daily monitoring thresholds required to avoid ammonia toxicity, gill asphyxiation, and stress-induced mortalities.
Precision Extruded Pellet Feeding Schedule
Optimized crude protein and feeding frequencies across life stages to minimize feed wastage and maximize growth velocity.
| Life Stage | Duration | Crude Protein (CP %) | Feed Type & Pellet Size | Feeding Rate (% Biomass) | Feeding Frequency |
|---|---|---|---|---|---|
| Fingerling Nursery & Acclimatization | Month 1 to Month 2 | 28% – 30% CP | 1.2 mm to 1.8 mm micro floating pellets | 5% to 6% of body weight | 2 times / day |
| Active Grow-out Vegetative Phase | Month 3 to Month 6 | 24% – 26% CP | 2.5 mm floating pellets or 1:1 Rice Bran + Mustard Cake mash | 3% to 4% of body weight | 2 times / day |
| Finishing & Harvest Bulking | Month 7 to Month 10 | 22% – 24% CP | 3.0 mm to 4.0 mm floating extruded pellets | 2% to 2.5% of body weight | 1 times / day |
1 Acre Earthen Pond (approx 4,000 sq.m) Profit & Loss Statement
Verified batch operating budget based on commercial hatchery seed costs, floating pellet feed, aeration electricity, and wholesale farmgate prices.
Batch Operating Expenses (OPEX)
Harvest Revenue Realization
Critical Disease Diagnosis & Biosecurity Treatments
Immediate identification and legal aquatic medication protocols for pathogens affecting Composite Freshwater Carp (Rohu, Catla & Mrigal).
Epizootic Ulcerative Syndrome (EUS)
Argulosis / Fish Louse (Argulus foliaceus)
5 Golden Aquaculture Rules for Composite Freshwater Carp (Rohu, Catla & Mrigal)
Maintain pond water depth at 1.5 to 1.8 meters; shallower ponds heat up during summer and cause thermal stress.
Apply agricultural limestone (CaCO3) @ 200–250 kg/acre prior to stocking to stabilize pond pH at 7.8.
Stock only certified healthy fingerlings of minimum 80–100 mm size to reduce cannibalism and achieve > 85% survival.
Run paddle wheel aerators for 3 hours before sunrise (3:00 AM to 6:00 AM) when pond dissolved oxygen drops to critical lows.
Calculate Production Costs & Profits for Composite Freshwater Carp (Rohu, Catla & Mrigal)
Fish & Shrimp Farming Profitability Calculator
Calculate total floating feed bags, FCR, harvest biomass, operating expenses, and net profit for pond, biofloc, and RAS culture.
Composite Freshwater Carp
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