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dc.contributor.authorBahramian, Behrooz
dc.contributor.authorZabihi, M.
dc.contributor.authorFarzanfar, A.
dc.contributor.authorGharra, K.
dc.contributor.authorHaghighi, M.
dc.contributor.authorAlizadehsabet, H.R.
dc.contributor.authorLashtoo Aghaei, Gh.R.
dc.coverage.spatialIranen_US
dc.date.accessioned2018-07-03T12:42:44Z
dc.date.available2018-07-03T12:42:44Z
dc.date.issued2009
dc.identifier.urihttp://hdl.handle.net/1834/13106
dc.description.abstractThis investigation conducted for evaluation Silo (Cylindrical) Fish Tanks as an applicable method for aquaculture of Rainbow trout (Oncorhynchus mykiss). Current research was designed in two practical phases as accidental experiments through 3 treatments and repeats of which stocked by three Rainbow trout (375 gr) densities as 75, 100 and 125 fish/m3 in 9 silo fish tanks (2 m3). For better understandings of the silo performance method, concrete circular fish tanks (similar volume) considered as controls and stocked as similar fish densities as silo tanks. The duration of the first phase of experiment was 150 days. The second phase of the experiment was determined for evaluating two proposed silo type (Inlet and outlet in bottom side / Inlet from bottom and outlet in upper side). In this stage, proposed silos (stocked by fish of 294 gr weigh) tested for rearing trout for 30 days. Water supplied from two surface wells after some aeration operations. Stocked fish were fed by pellets made by Fish Feed Chineh Company (Ltd) in Iran. Feeding operation conducted according to the recognized manuals by consideration of water temperature, fish weight and biomass. Meanwhile, biometry operation conducted in 10 days intervals while fish were anaesthetized. In addition, water quality was determined by daily measurements. According to the results of the first phase of experiment, there were significant variations on Growth rate, survival rate, FCR, FCE and SGR through the cultured organisms in silo tanks compared to the circular tanks. Meanwhile, according the results of an economic study on this survey, the fish culture in silo tanks showed significant economical and profitable in compare to controls. In additions, the second phase of experiment showed better aeration conditions in silo tanks when inlet water supply from bottom side and outlet located in upper side. Because of the fine distribution of fish in silo tanks and more usage of depth by this method, fish culture would be an applicable and profitable technique in narrow lands and slopes through the mountains area. The maximum stocking rate recorded more than 100 Kg fish/m3 in silo tanks.en_US
dc.description.sponsorshipIranian Fisheries Science Research Instituteen_US
dc.language.isofaen_US
dc.publisherIranian Fisheries Science Research Instituteen_US
dc.relation.ispartofseries88.1059;
dc.subject.otherPracticalen_US
dc.titleEvaluation Silo (Cylindrical) fish tanks as an applicable method for aquaculture of Rainbow trout (Oncorhynchus mykiss)en_US
dc.typeReporten_US
dc.description.statusPublisheden_US
dc.format.pages73pp.en_US
dc.publisher.placeTehran, Iranen_US
dc.subject.asfaSiloen_US
dc.subject.asfaCylindricalen_US
dc.subject.asfaAquacultureen_US
dc.subject.asfaRainbow trouten_US
dc.subject.asfaOncorhynchus mykissen_US
dc.subject.asfaFishen_US
dc.subject.asfaFeedingen_US
dc.subject.asfaTemperatureen_US
dc.subject.asfaWeighten_US
dc.subject.asfaBiomassen_US
dc.subject.asfaFCRen_US
dc.subject.asfaFCEen_US
dc.subject.asfaSGRen_US
dc.subject.asfaCultureen_US
dc.type.refereedRefereeden_US
refterms.dateFOA2021-01-30T18:48:31Z


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