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In the case of semi-intensive culture the stocking is done discriminately
in the 90's going up to 80-100 pieces per sq. meter. But after the viral
attack it has gone down and farmers find it safer to go up to 40 pieces
per sq. meter. Aerators are uses through out the culture period.
New technology has been developed to culture the tiger
prawn avoiding all possibilities of the viral attack. Use of
anti-bacterial/ antiviral probiotics are being used widely with zero
water exchange. The precaution taken are to avoid soil sources of the
virus using polythene liners; water source by zero water exchange or with
chlorinated , de-chlorinated water and seed by selecting virus free
seeds for stocking. |