Central Institute of Freshwater Aquaculture (Indian Council of Agricultural Research)
Po: Kausalyaganga, BBSR
Ph.: 0674-2465421
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Improved Techno -Tecnology for Improving Production & Productivity-Farm Design(3)
Improved Techno -Tecnology for Improving Production & Productivity-Farm Design(3)
Generally, the traditional and improved traditional farms are vast and the individual units range up to 100-200 ha. In such large water bodies, the adoption of improved culture technology may not be possible since management of such water bodies is very difficult. For better water management, individual culture units should be within 5 ha. areas. Hence changes in farm design should be made wherever possible depending on the local conditions to reduce the unit culture area within manageable limits. The reduction in size should accompany formation of a suitable feeder channel system within the farm so that the water intake can be effectively managed in all the individual units. The water intake should be through sluices provided with net screens. The sluice gates should be watertight so as to retain the required amount of water in the ponds.
The water depth in traditional fields is low at 50-60 cm. For improving the growth and survival of the shrimps, at least a minimum depth of 80-100 cm. should be maintained. Deepening of the farms is called for wherever necessary. The soil excavated after deepening should be used for the bunds etc.
The traditional/improved traditional systems of culture adopting improved technology may resort to the use of pumps whenever necessary.
All farms above 5 ha should keep 10% of the area reserved as waste stabilization ponds.