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Infrastructural facilities - Larval rearing unit
Unit 9 - Hatcheries
Infrastructural facilities
Larval rearing unit
The larval rearing unit plays a major role in the successful operation of prawn hatchery. The larval rearing shed should be situated with a North-South orientation having large windows on eastern and western sides for proper ventilation. The roof of the shed is covered with asbestos cement sheets interspersed with one translucent fibre glass sheet after every three sheets. The hatchery should have concrete flooring with proper shape and drainage facility. The unit is provided with fresh water, brackish water and air supply grids of P.V.C. all along the walls inside the shed.
Larval rearing tanks
Prawn larvae are reared in different types and sizes of tanks made up of cement, FRP Ferro-cement etc., Smaller hatcheries use 0.25 to 1.0 ton and commercial hatcheries use 1 to 5 ton capacity parabolic shaped or circular tanks with disc shaped bottom. The tanks are provided with aeration.
Last modified: Wednesday, 27 April 2011, 10:03 AM