No Thumbnail Available

Improved technology of carp broodfish management

Institutional Strengthening in the Fisheries Sector, Bangladesh

Year of publication 1992

Pages p.19

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

Product type Project

Edition 1

Synopsis (short abstract) The Asian Development Bank and World Bank sponsored Second and Third Fisheries Projects created new demand for carp seeds. Yearly about 500 million, at least 1012 cm size fingerlings are required for implementation of targets of these projects. To meet this demand private sector should increase significantly its fish seed production, consequently quantity of hatched fry should also be increased. As time, area and capital are limited, significant increasing of broodfish populations for producin g more hatchlings, is not possible. The only wayout is to increase the productivity of broodfish and to make efforts on repeated breeding of the same fish within the same season. Though there are private farmers and government farm managers who can produce good quality broodfish, in general, the extremely high stocking density, sporadic manuring and lack of balanced feeds are the main factors hampering broodfish management. The objective of the study conducted by FAO/UNDP Project BGD/87/045 was to demonstrate technology of broodfish management of spent fish in off season as well as demonstrate methodology for preparation of broodfish for second breeding within the same season. The demonstrations were carried out during 19901992 in two Fish Seed Multiplication Farms (FSMF).

Cite this content as:

Peteri, A.; Nandi, S.; Chowdhury, S.N. Apr 1992. Improved technology of carp broodfish management. (np). 19 p.

Language English

Also available in:
No results found.

Related items

Showing items related by metadata.

  • No Thumbnail Available
    Project
    Development of large size carp fingerling production technology
    Institutional Strengthening in the Fisheries Sector, Bangladesh
    1992
    Also 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 Available
    Project
    Manual on seed production of carps
    Institutional Strengthening in the Fisheries Sector, Bangladesh
    1992
    Also available in:
    No results found.
    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.
  • No Thumbnail Available
Show more

Users also downloaded

Showing related downloaded files

No results found.