Role of tilapia (Oreochromis andersonii) in integrated farming systems in Zambia
1988
Gopalakrishnan, V. (FAO Fish Culture Development Project Chilanga (Zambia))
The potential for development of aquaculture as an industry in Zambia has been found to be appreciable because of the favorable climate, soil, water supply, availability of land and the spontaneous interest generated in the private sector. The old system of cultivating several species of tilapia together in the same pond has been changed to monospecies culture and Oreochromis andersonii has been shown to yield good growth and production rates. A broodstock (Kafue strain) of the species was introduced into the Chilanga Fish Farm and separate ponds for the production of fry, fingerlings and market-size fish have been maintained. Among the various systems of aquaculture tried during the past three years in three farms established by the project in different regions of the country, integrated fish farming using fish-cum-pig and fish-cum-duck combinations has given very good production results. Modest averages worked out for the fish-cum-pig system are between 4 and 6 t/ha/year and for the fish-cum-Peking duck system between 3.5 and 4.5 t/ha/year. The paper describes details of the integrated farming technology with special reference to the role of O. andersonii, pond management practices and related economic considerations.
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