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.creatorLimbu, S. M.
dc.creatorShoko, A. P.
dc.creatorLamtane, H. A.
dc.creatorShirima, E. D.
dc.creatorKishe-Machumu, M. A.
dc.creatorMgana, H. F.
dc.creatorMgaya, Y. D.
dc.date2015-03-27T13:54:16Z
dc.date2015-03-27T13:54:16Z
dc.date2015-03
dc.date.accessioned2022-10-25T08:53:46Z
dc.date.available2022-10-25T08:53:46Z
dc.descriptionThis article is available at www.Springerlink.com
dc.descriptionProlific 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.
dc.descriptionTanzania Commission for Science and Technology (COSTECH) through ‘‘KILIMO KWANZA’’ programme
dc.formatapplication/pdf
dc.identifierLimbu, 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.
dc.identifier2008-4935
dc.identifierDOI: 10.1007/s40071-014-0093-3
dc.identifierhttps://www.suaire.sua.ac.tz/handle/123456789/568
dc.identifier.urihttp://hdl.handle.net/123456789/94122
dc.languageen
dc.languageen
dc.languageen
dc.languageen
dc.publisherSpringer
dc.subjectClarias gariepinus
dc.subjectNile tilapia
dc.subjectOreochromis niloticus
dc.subjectAfrican sharptooth catfish
dc.subjectProlific breeding
dc.subjectPolyculture
dc.subjectMonoculture
dc.titleEffect 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
dc.typeArticle
dc.typeArticle
dc.typeArticle
dc.typeArticle

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