Comparison of some traits of economic importance in tilapias (Orechromis niloticus and Sarotherodon galilaeus) with particular reference to their culture in Ghana

M. Owusu-Frimpong, F.Y.K. Attipoe and J.N. Padi

Naga, 2005, vol. 28, issue 3/4, 33-36

Abstract: This study was conducted to determine which of the two major tilapia species in freshwater capture fisheries in Ghana, Oreochromis niloticus or Sarotherodon galilaeus, is more suitable for breed improvement and pond culture. It compares traits of economic importance, including seed output, specific growth rate, survival and sex ratios following androgen sex reversal. The results of the study showed that the aquaculture potential of S. galilaeus compares favorably with that of O. niloticus. However, S. galilaeus may be preferred because the males and females have an equal growth rate, which allows for manual sorting to raise both sexes in monosex culture, an inexpensive appropriate technology that an ordinary smallscale fish farmer can apply.

Keywords: Freshwater fish; Freshwater aquaculture; Biological production; Ghana; Orechromis niloticus; Sarotherodon galilaeus (search for similar items in EconPapers)
JEL-codes: Q00 (search for similar items in EconPapers)
Date: 2005
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Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:wfi:wfnaga:38361

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