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Effect of stocking density on growth, production and economic benefits of Nile tilapia (Oreochromis niloticus) and African sharptooth catfish (Clarias gariepinus) in polyculture and monoculture.

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dc.creator Shoko, Amon Paul
dc.creator Limbu, Samwel M.
dc.creator Mrosso, Hillary Deogratias John
dc.creator Mkenda, Adolf Faustine
dc.creator Mgaya, Yunus D.
dc.date 2016-03-02T06:48:55Z
dc.date 2016-03-02T06:48:55Z
dc.date 2014-04-23
dc.date.accessioned 2018-04-18T11:49:34Z
dc.date.available 2018-04-18T11:49:34Z
dc.identifier Shoko, A.P., Limbu, S.M., Mrosso, H.D.L., Mkenda, A.F. and Mgaya, Y.D., 2014. Effect of stocking density on growth, production and economic benefits of Nile tilapia (Oreochromis niloticus) and African sharptooth catfish (Clarias gariepinus) in polyculture and monoculture. Aquaculture Research (In Press).
dc.identifier 10.1111/are.12463
dc.identifier http://hdl.handle.net/123456789/520
dc.identifier.uri http://hdl.handle.net/123456789/10036
dc.description On-farm fish production experiments were conducted for 240 days to investigate the effect of stocking density on growth, yield and economic benefits of Nile tilapia (Oreochromis niloticus) in monoculture and polyculture with African sharptooth catfish (Clarias gariepinus). Low stocking density (LSD), medium stocking density (MSD) and high stocking density (HSD) of 30 000, 60 000 and 90 000 fish ha−1 respectively, were tested. O. niloticus cultured in polyculture attained significantly higher mean weight gain than those cultured in monoculture. O. niloticus and C. gariepinus raised together in polyculture attained significantly higher net annual yield than O. niloticus cultured alone in monoculture. Profitability analysis using partial enterprise budgets revealed that polyculture is a more profitable system than monoculture. The highest growth, yield and economic benefits were achieved at HSD and MSD than at LSD with no significant difference between HSD and MSD. Results demonstrate that farmers can achieve the highest net yield and economic benefits by culturing O. niloticus and C. gariepinus in polyculture at HSD and MSD, preferably MSD for economic reasons.
dc.language en
dc.subject polyculture
dc.subject Nile tilapia
dc.subject African sharptooth catfish
dc.subject stocking density
dc.subject growth
dc.subject yield
dc.title Effect of stocking density on growth, production and economic benefits of Nile tilapia (Oreochromis niloticus) and African sharptooth catfish (Clarias gariepinus) in polyculture and monoculture.
dc.type Other


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