Culture of African magur (Clarias gariepinus) in Bangladesh
No hay miniatura disponible
Fecha
Título de la revista
ISSN de la revista
Título del volumen
Editor
Resumen
Descripción
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.