No Thumbnail Available

Manual on African magur (Clarias gariepinus) culture in Bangladesh

Institutional Strengthening in the Fisheries Sector, Bangladesh

Year of publication 1992

Pages p.45

Author Rahman, M.M.,Varga, I.,Chowdhury, S.N.;Fisheries and Aquaculture Management Division

Product type Project

Edition 1

Synopsis (short abstract) This field document is one of a series of reports prepared during the course of the project on Institutional Strengthening in the Fisheries Sector of Bangladesh. The conclusions and recommendations given in the report were considered appropriate at the time it was prepared. 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 w hatsoever on the part of the United Nations or the Food and Agriculture Organisation of the United Nations concerning the legal status of any country, territory, city or area or of its authorities, or concerning the delimitation of its frontiers or boundaries. This document is in its final draft form. The opinions expressed by the authors are not necessarily those of FAO or the Government of Bangladesh.

Cite this content as:

Rahman, M.M.; Varga, I.; Chowdhury, S.N. Mar 1992. Manual on African magur (Clarias gariepinus) culture in Bangladesh. (np). 45 p.

Language English

Also available in:
No results found.

Related items

Showing items related by metadata.

  • No Thumbnail Available
    Project
    Culture of African magur (Clarias gariepinus) in Bangladesh
    Institutional Strengthening in the Fisheries Sector, Bangladesh
    1992
    Also available in:
    No results found.
    In an experimental and demonstration study, production parameters and economics of African magur. (Clarias gariepinus) culture, adopting different grow-out techniques in five government and two private farms, were investigated. Semi-intensive culture techniques were used in undrainable ponds. Using locally available cheap feed ingredients (slaughter house by-products, oil cakes, rice polish/bran etc.) moist fish feed were prepared. The feed conversion ratio varied from 2.83 to 3.53 kg moist fe ed, to 1 kg fish in magur dominated polyculture, 4.87 to 5.53 to 1 kg of fish in magur monoculture; and 0.895.42 to 1 kg of fish in the chicken-magur integrated culture system. Estimated net production of 1012 t/ha/yr, 7.315 t/ha/yr and 14.2 14.3 t/ha/yr were achieved under magur dominated polyculture, magur polyculture integrated with chicken and magur monoculture systems respectively. The fish production per unit area basis could be increased with the stocking of surface feeder species such as Silver carp (Hypophthalmichthys molitrix) and Catla (Catla catla) without affecting the growth rate of magur. The highest net return over operating costs (90.12 %) was obtained in magur dominated polyculture system.
  • No Thumbnail Available
    Project
    Manual on seed production of African catfish (Clarias gariepinus)
    Institutional Strengthening in the Fisheries Sector, Bangladesh
    1992
    Also available in:
    No results found.
    Due to the difficulties of Tilapia culture in Africa, particularly, those resulting from overproduction and consequent stunting in growth, attention was focused on another African fish group, which included the large size African catfish, Clarias gariepinus (Burchell, 1882). For pond culture of this species initial attempts were made at the end of sixties and beginning of seventies. The main delimitation of pond culture of it was the inadequate supply of seed at that time (Hogendoorn, 1979). I n the past two decades, methods of fish seed production, intensive and pond rearing of Clarias gariepinus were developed. These studies were made mainly in Central African Republic, the Netherlands and Israel (Viveen et al., 1986). Moreover, necessary taxonomical and biological examination of the African catfish group were carried out in the same period, which revealed that Clarias lazera and Clarias gariepinus so long considered as two separate species, were same and hence they came under the s ame scientific name Clarias gariepinus (Burchell, 1822) (Janssen, 1987). Outside its natural habitat the species is cultured in cooling water of power stations in the Netherlands and also in hot springs in Hungary. The species was also introduced in Thailand, and China. At the end of 1989 the African catfish was introduced in Bangladesh from Thailand by the Ministry of Fisheries and Livestock, Government of Bangladesh. The African catfish (it is known as African magur in Bangladesh) is simil ar to a few Asian catfish species as Clarias batrachus and Clarias macrocephalus. The main distinguishing feature of the species is the shape of occipital process of skull (Figure 1).
  • No Thumbnail Available
Show more

Users also downloaded

Showing related downloaded files

No results found.