Sokoine University of Agriculture

Effect of initial stocking size of the predatory African sharptooth catfish (Clarias gariepinus) on recruits, growth performance, survival and yield of mixed-sex Nile tilapia (Oreochromis niloticus) in concrete tank culture system

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dc.contributor.author Limbu, S. M.
dc.contributor.author Shoko, A. P.
dc.contributor.author Lamtane, H. A.
dc.contributor.author Shirima, E. D.
dc.contributor.author Kishe-Machumu, M. A.
dc.contributor.author Mgana, H. F.
dc.contributor.author Mgaya, Y. D.
dc.date.accessioned 2015-03-27T13:54:16Z
dc.date.available 2015-03-27T13:54:16Z
dc.date.issued 2015-03
dc.identifier.citation Limbu, S. M., Shoko, A. P., Lamtane, H. A., Shirima, E. D., Kishe-Machumu, M. A., Mgana, H. F., & Mgaya, Y. D. (2015). Effect of initial stocking size of the predatory African sharptooth catfish (Clarias gariepinus) on recruits, growth performance, survival and yield of mixed-sex Nile tilapia (Oreochromis niloticus) in concrete tank culture system. International Aquatic Research, 1-11. en_US
dc.identifier.issn 2008-4935
dc.identifier.other DOI: 10.1007/s40071-014-0093-3
dc.identifier.uri https://www.suaire.sua.ac.tz/handle/123456789/568
dc.description This article is available at www.Springerlink.com en_US
dc.description.abstract Prolific breeding and production of high percentage of recruits are main problems in mixed-sex Nile tilapia (Oreochromis niloticus) culture in earthen ponds. The current study assessed the efficiency of different sizes of African sharptooth catfish (Clarias gariepinus) in controlling recruitment in mixed-sex Nile tilapia cultured in tanks and its effect on growth performance, percentage survival and yield. Three treatments consisting of triplicate ponds stocked with mixed-sex Nile tilapia in monoculture and in polyculture with large (62.50 ± 3.26 g) and small (40.00 ± 2.68 g) African sharptooth catfish were fed on a 297.50 g kg-1 crude protein diet for 126 days. Results showed that, the number of recruits was significantly lower in larger African sharptooth catfish predator than smaller ones and monoculture of Nile tilapia. Polyculture with larger African sharptooth catfish resulted in significantly higher growth performance of Nile tilapia. Large African sharptooth catfish in polyculture reduced the amount of small, low-value recruits, while the yield of large and high value Nile tilapia was increased. This study revealed that fish farmers can reduce prolific breeding, obtain higher growth performance and produce larger size of marketable Nile tilapia by predominantly stocking ponds with large African sharptooth catfish predator of at least 60 g. en_US
dc.description.sponsorship Tanzania Commission for Science and Technology (COSTECH) through ‘‘KILIMO KWANZA’’ programme en_US
dc.language.iso en en_US
dc.language.iso en en_US
dc.language.iso en en_US
dc.language.iso en en_US
dc.publisher Springer en_US
dc.subject Clarias gariepinus en_US
dc.subject Nile tilapia en_US
dc.subject Oreochromis niloticus en_US
dc.subject African sharptooth catfish en_US
dc.subject Prolific breeding en_US
dc.subject Polyculture en_US
dc.subject Monoculture en_US
dc.title Effect of initial stocking size of the predatory African sharptooth catfish (Clarias gariepinus) on recruits, growth performance, survival and yield of mixed-sex Nile tilapia (Oreochromis niloticus) in concrete tank culture system en_US
dc.type Article en_US
dc.type Article en_US
dc.type Article en_US
dc.type Article en_US


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