Page 15 - 240 introduction to fisheries and aquaculture tecnologies-azam
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Introduction to Fisheries and Aquaculture Technologies
Production 4-5 ton/ha/yr.
Expected income Tk. 1,02,986 ha.
05. Risk involvement and a. Protection against flood.
management in adopting the b. Protection against theft of fish.
technology
06. Impact of environment No adverse effect on the environment.
07. Procedure of transfer a. Training.
b. Demonstration.
c. Personal contact.
d. Extension service.
08. Expected outcome a. Proper utilization of unused ponds.
b. Increased fish production.
c. Higher income to farmers and possibility of
unemployed youth to get self employed.
09. Recommendations a. Ensure supply of quality fish fingerlings.
b. Effective credit system and credit facilities.
c. Adequate manpower to disseminate the polyculture
technology.
d. Demonstration ponds should be set up in different
areas.
e. Polyculture of carp fingerlings in rural areas to meet
the demand of their seeds for stocking.
5. Induced Breeding and Seed Production of Thai Pangas (Pangasius sutchi)
01. Contact division/person/unit Riverine Station, Bangladesh Fisheries Research
Institute, Chandpur.
02. Location of application Rivers and closed water bodies all over the country.
03. Key characteristics of the a. Easy to produce seed with minimum cost.
technology b. Fish has high fecundity which results in large scale
seed production.
c. Grow fast with locally available feeds in ponds.
d. Suitable for mono/polyculture; high market value.
04. Production guidelines a. July-September is peak period of artificial breeding.
b. Mature brood fish need for acclimatization 5-6 hrs
before they are injected.
c. Female is given @ 7-8 mg of PG/kg body weight &
male @ 2 mg PG/kg body weight.
d. Ovulation takes place 7-8 hrs after the second
injection.
e. Larvae hatch out 72 hrs after egg fertilization.
f. Newly hatched larvae are delicate & remain in cluster,
so they need shallow metal tray & special care.
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