Giant Freshwater Prawn
Giant freshwater prawns live in freshwater environments but berried females migrate downstream to brackishwater where the eggs hatch into larvae
Broodstock
Broodstock are stocked at about 4:1 female-male ratio. Blue- and orange-clawed males are preferred since these males are bigger and are able to mate more efficiently than smaller males.
Process 1
Hatchery
Larvae are fed brine shrimp nauplii, egg custard (solidified egg emulsion), and water fleas, Moina sp.
Process 2
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Nursery
Primary nursery rearing phase takes 15 to 30 days; Secondary nursery to produce juveniles is up to 60 days. Fifteen-day old PL (PL 15) and older are ready for grow-out.
Process 3
Grow-out
Prawns reach marketable size in 4 to 5 months. Mean size at harvest is 25-35 grams but male prawns could grow to larger sizes. Longer culture period may be required for higher stocking densities.
Process 4