WorldFish is an international, nonprofit research organization that harnesses the potential of fisheries and aquaculture to reduce hunger and poverty. Our publications database contains WorldFish publications and references to WorldFish research published in refereed journals and periodicals.

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A brief account is given of the results of a grow-out trial conducted regarding the freshwater prawn (Macrobrachium rosenbergii ) in a farm pond in Ghana with water at temperatures of 30-33 C. Results showed that 70% of the prawns achieved lengths of over 13 cm and wet weight of > 35 g, figures which compare favourably with growth rates achieved in other parts of the world. Although M.

The results are presented of a 2-year study conducted regarding management practices and problems associated with raising fish in concrete tanks in Nigeria. The location and construction of the tanks, which were used toculture Clarias gariepinus, Tilapia guineensis and Heterobranchus bidorsalis , are described, and suggestions made for overcoming the problems involved, which were mainly due to poor management skills.

The old system of cultivating several species of tilapia together in the same pond has been changed to monospecies culture. Oreochromis andersonii has been shown to yield good growth and production rates.