Page 31 - 240 introduction to fisheries and aquaculture tecnologies-azam
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Introduction to Fisheries and Aquaculture Technologies
19. Prawn Culture in Ponds
01. Contact division/person/unit Freshwater Station, Bangladesh Fisheries Research
Institute, Mymensingh.
02. Location of application All over the country, in perennial ponds.
03. Key characteristics of the a. Freshwater prawn is fast growing species which
technology attains marketable size within 5-6 months.
b. Polyculture with carps is more profitable.
c. World market demand of freshwater prawn is high.
04. Production guidelines a. Pond is prepared with lime & fertilizers, stocking of
7-10 em size juvenile is done @ 15,000/ha for
monoculture & 7000 fish + 12000 prawn/ha for
polyculture.
b. Daily feeding with fish meal, rice bran, wheat bran
and mustard oilcake @ 1:4:2:3 ratio mixture is done
@ 3-4% of the estimated body weight.
c. Monoculture production: @ 277 - 322 kg/hal6 months.
d. Polyculture production: @ 4 tons fish + 0.5 tons
prawnlhall0 months.
Cost involvement and benefit Net profit of polyculture : Tk. 2,50,000-300,000/hailO
months.
05. Risk involvement and a. Theft of fish and prawn should be avoided.
management in adopting the b. Flooding of ponds need to be prevented.
technology
06. Impact of environment It is an environment-friendly culture technology.
07. Procedure of transfer Through training and development.
08. Expected outcome a. Increase production of prawn.
b. More export earnings.
09. Recommendations a. Prawn fish polyculture technology should be
disseminated all over the country.
b. Demonstration of technology.
c. Training of farmers.
20. Improved Culture of Penaeid Shrimp in Gher/Enclosure
01. Contact division/person/unit Brackishwater Station, Bangladesh Fisheries Research
Institute, Paikgacha, Khulna.
02. Location of application 2-4 ha area of ponds with Im depth of water where
tidal water can easily be entered. Coastal area of the
southern region of Bangladesh.
03. Key characteristics of the a. Bright chances of the penaeid shrimp in ghers of the
technology coastal area of Bangladesh.
b. Improvement of socio-economic condition of coastal
area.
c. Significantly higher production rather than extensive.
d. High economic profit.
04. Production guidelines
Land selection a. Land should be near to the river or cannel where tidal
water can enter..
b. Should have water exchange facility.
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