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Development of large size carp fingerling production technology

Institutional Strengthening in the Fisheries Sector, Bangladesh

Year of publication 1992

Pages p.20

Author Peteri, A.,Nandi, S.,Chowdhury, S.N.;Fisheries and Aquaculture Management Division

Product type Project

Edition 1

Synopsis (short abstract) 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%.

Cite this content as:

Peteri, A.; Nandi, S.B.; Chowdhury, S.N. Apr 1992. Development of large size carp fingerling production technology. (np). 20 p.

Language English

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    Massive stocking of the open waters with nursery raised fingerlings and large-scale expansion of fish culture are two important strategies currently adopted in Bangladesh for increasing fish production. As a matter of policy, large size fingerling is being used for both open water stocking as well as pond aquaculture. Implementation of Asian Development Bank and World Bank sponsored Second and Third Fisheries Projects which has started stocking of fingerling in flood plains for rearing of mark et size fish has created a new demand for carp seed. These new projects stipulate that the number of 1012 cm size fingerling to be released in open waters every year about 400500 million. To achieve this target, private sector should significantly increase its fingerling production for supply to these projects. Moreover, technology of fingerling rearing as used now, in private sector, should be changed because for stocking in the natural waters, the fingerling should be reared at least up to 101 2 cm size. In some areas of the country (particularly in Jessore) private farmers are using effective methods and getting excellent results in producing of small size fingerling in multicrop system, but multicycle production of large size fingerling is not carried out at any part of the country. Moreover, in general, the present fry/fingerling production technology is characterized by inadequate pond preparation, improper manuring and supply of poor quality feed. (Production data of fish seed producers of the country are given in Table 1.) Further, the presently used management methods are not suitable for full utilization of production capacity of broodfish. With the improvement of broodfish preparation methodology the breeding season may be prolonged, facilitating multicycle production of fish seed.
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    This report was prepared during the course of the project identified on the title page. The conclusions and recommendations given in the report are those considered appropriate at the time of its preparation. They may be modified in the light of further knowledge gained at subsequent stages of the project. The designations employed and the presentation of the material in this document do not imply the expression of any opinion whatsoever on the part of the United Nations or the Food and Agricu lture Organization of the United Nations concerning the legal or constitutional status of any country, territory or sea area, or concerning the delimitation of frontiers.
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