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Study on the effect of emission of ultrasonic sound in fish pond on the Growth of fish -

Project-in-Charge, Nalbon Fisheries Project (The State Fisheries Development Corporation Limited).

This is to certify that demonstration of "Vardhman Electronics Fish Grower INSTRUMENT" was carried out in 0.30 hectar pong no - 2 at Nalbon Fisheries Project to promote the growth of fish. It has been observed through demonstration that "Vardhman Electronics Fish Grower INSTRUMENT is very effective for promoting growth of fish."

Data before use of Vardhman Electronics instrument
dated :- 19.07.2005
Observation after use of Vardhman Electronics Instrument
(After 30 days) dated :- 17.08.2005
1. Av. size and weight of - 5 gms Mrigal (200 nos / kg) Av. size and wt. of Mrigal -8.3 gms (120 nos / kg)
2. Av. size and wt. of Ruhu - 4 gms (250 nos / kg) Av. size and wt. of Ruhu - 7.7 gms (130 nos / kg)

Project-in-Charge,
Nalbon Fisheries Project
(The State Fisheries Development Corporation Limited)
Dated : 30.08.2005