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No Thumbnail AvailableBook (stand-alone)Common carp Part 2. Mass production of advanced fry and fingerlings in ponds 1985
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No Thumbnail AvailableProjectDevelopment of large size carp fingerling production technology
Institutional Strengthening in the Fisheries Sector, Bangladesh
1992Also available in:
No results found.To meet the present demand of large size (about 10 cm) carp fingerling for massive open water stocking in Bangladesh, a modified technology of large size carp fingerling production was demonstrated at four government farms, utilizing locally available facilities and feed ingredients. In the modified system production was 10602292 kg/ha in 3050 days. This rate of production in one cycle is about 4 times higher than the production under the traditional system of large size fingerling rearing. With increased management skills, raising of 45 crops of large size fingerling was found technically feasible. This means that the improved system has the potential for producing 53005500 kg of large fingerling/ha/season. By further improvement of feeding system production can be increased up to 900010500 kg/ha/season by year round multicycle multispecies culture. Against the traditional stocking rates of 40140 prenursed fry/m2, the modified system used only 819 fry/m2, but produced a much hig her biomass of larger fingerling of substantially higher sale value. Production cost of 1 kg fingerling was Tk. 42. Profit over investment was Tk. 25 (60%) in modified system, which is significantly higher than the traditional (Tk. 19/kg i.e. 18%) technology. But the production cost of fingerlings in modified system will be Tk.27/kg when the farmers will use their own stocking material instead of buying. In that case the profit will be 148%. -
No Thumbnail AvailableProjectEffects of green manure on fish production in polyculture ponds with silver carp and bighead carp as main species
Network of Aquaculture Centres in Asia
1988Also available in:
No results found.Four types of green manure were used in the polyculture ponds with silver carp and bighead carp as the main species. Direct application of green manure resulted in a higher fish production ranging from 19.59 to 25.33 kg/ha/day. Sudan grass was best among four types of green manure.
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