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ULTRASONIC Fish Grower (Fish Breeding) -
Fisheries Development Center, Surat District, Govt. of Gujarat, Ukal dated 01.09.06

As Directed we find here with Experimental observation with the device 'Fish Grower' demonstration by you for Grass carp breeding, here we find positive result perfomance of ultrasonic sound on grass carp.

Experiment Date Species Qty of Brooders Injected Dose of ovatide per kg Dosage per kg
(in ml)
Qty of eggs Per hundred egg Spawn produced
    Female Male Female Male Male      
21.07.2006 Mrigala 16 18.100 17.00 14.850 0.25 20 75% 15.00
08.10.2006 Mrigala 15 17.30 16 16.00 0.225 30.00 90% 23.00

Asst. Director of Fisheries
Fisheries Development Center,
Surat District, Govt. of Gujarat