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dc.contributor.authorNafisi Bahabadi, M.
dc.contributor.authorSoltani, M.
dc.coverage.spatialIranen_US
dc.coverage.spatialBushehr Provinceen_US
dc.coverage.spatialPersian Gulfen_US
dc.date.accessioned2018-02-10T12:57:41Z
dc.date.available2018-02-10T12:57:41Z
dc.date.issued2008
dc.identifier.issn1562-2916
dc.identifier.urihttp://hdl.handle.net/1834/11191
dc.description.abstractGrowth, feed conversion ratio and fillet composition of rainbow trout (initial weight of 9.99±0.109)were investigated in a 6x2 factorial design experiment employing two levels of digestible energy (DE) (2900 and 3500kcal.kg-1) and six feeding rates (1.0%, 2.0%, 3.0%, 4.0%,5.0% of the body weight,(BW) day-1 and to satiation) for 60 days. Specific growth rate (SGR) was highest at 5.0% ration in both levels of digestible energy and decreased in the satiation ration. Regardless of feeding rate, rainbow trout grew more by 35% in DE 3500 kcal kg-1, There was a significant (p<0.05) interactive effect of feeding rates and DE on weight gain and feed conversion ratio (FCR). The highest FCR was found in fish fed to satiation (19- 21%), while the lowest FCRs, were found in 4%, 3% rations in DE levels of 2900 and 3500 kcal kg-1, respectively. There was a significant increase in protein and fat levels and decrease in moisture content of fish fillet (p<0.05) as feeding rate and DE increased (p<0.05). Condition factor increased when feeding rate and DE increased (14-15%). Feeding rate and DE level proved to be the main differentiating factors in growth, FCR and fillet composition parameters. Values of SGR and FCR plotted against feeding rates allowed the optimum and maximum feeding levels to be determined, which were found to be at 4% and 3%kcal day-1 in DE levels of 2900 and 3500kcal kg-1, respectively, for the rainbow trout of 109average weight.en_US
dc.language.isoenen_US
dc.subject.otherOncorhynchus mykissen_US
dc.titleEffect dietary energy levels and feeding rates on growth and body composition of fingerling rainbow trout (Oncorhynchus mykiss)en_US
dc.typeJournal Contributionen_US
dc.bibliographicCitation.issue2en_US
dc.bibliographicCitation.titleIranian Journal of Fisheries Scienceen_US
dc.bibliographicCitation.volume7en_US
dc.description.statusPublisheden_US
dc.format.pagerangepp.171-186en_US
dc.subject.asfaRainbow trouten_US
dc.subject.asfaNutritionen_US
dc.subject.asfaFeeding rateen_US
dc.subject.asfaFeed energyen_US
dc.subject.asfaBody compositionen_US
dc.type.refereedRefereeden_US
refterms.dateFOA2021-01-30T18:48:17Z


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