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==Raising Prawns in Aquaponics or Small Aquaculture Systems== '''Prawns''', also known as '''freshwater shrimp''', are a popular choice for [[aquaponics]] systems and small-scale [[aquaculture]] setups. They are highly valued for their delicate, sweet meat and can be a sustainable and profitable addition to these systems. ===Species=== Several species of prawns are commonly raised in captivity, including: *[[Giant Freshwater Prawn]] (''Macrobrachium rosenbergii'') *[[Oriental River Prawn]] (''Macrobrachium nipponense'') *[[Indian White Prawn]] (''Fenneropenaeus indicus'') ===Hardiness=== Prawns are relatively hardy and can adapt to a range of water conditions. They prefer: Temperature: 68-86Β°F (20-30Β°C) pH: 7.0-8.5 Hardness: 5-15 dGH Oxygen: >4 mg/L ===Feeding=== Prawns are omnivorous and require a balanced diet of both plant and animal-based foods. They will readily consume: *Aquatic Plants *[[Algae]] *Detritus *[[Insects]] *Small Fish *Prepared Feeds Commercial prawn feeds are available, or you can make your own using a mixture of ingredients such as soybean meal, fishmeal, and vegetable matter. ===Breeding=== Breeding prawns in captivity can be challenging but is possible with the right conditions. The basic process involves: #Maintaining a healthy broodstock #Providing proper water conditions and a balanced diet #Encouraging mating through environmental manipulation (e.g., adjusting temperature or photoperiod) #Separating berried females to a nursery tank Females carry the eggs under their tails for 2-3 weeks before the larvae hatch. The larvae will undergo several molts before reaching the post-larval stage and can be moved to grow-out tanks. ===Harvesting and Cooking=== Prawns can be harvested using nets or traps. Purge them in clean water for several hours before cooking. Some popular prawn recipes include: *[[Grilled Prawns]] *[[Prawn Curry]] *[[Prawn Stir-Fry]] *[[Prawn Cocktail]] Cooked prawns can be stored in the refrigerator for 2-3 days or frozen for later use. ===Conclusion=== Raising prawns in aquaponics or small aquaculture systems can be a rewarding and profitable venture. While they require specific water conditions and a balanced diet, their quick growth rate and high market value make them an attractive option for aquaculturists.
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