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dc.contributor.authorThongprajukaew, Karun
dc.contributor.authorKovitvadhi, Uthaiwan
dc.contributor.authorKovitvadhi, Satit
dc.contributor.authorSomsueb, Pisamai
dc.contributor.authorTorrissen, Krisna Rungruangsak
dc.date.accessioned2011-11-30T13:12:08Z
dc.date.available2011-11-30T13:12:08Z
dc.date.issued2011-10-12
dc.identifier.issn0044-8486
dc.identifier.urihttp://hdl.handle.net/11250/108842
dc.description.abstractThe effects of four modified diets (gamma-irradiated, microwave-irradiated, probiotic-supplemented and carbohydrase-supplemented diets) were studied on digestive enzyme specific activities and growth performance quality of juvenile Siamese fighting fish (Betta splendens Regan, 1910) during 2 weeks of critical and intensive rearing period. The modified procedures did not change biochemical compositions and gross energy of diets, but generally resulted in relatively higher in vitro digestibilities of protein and carbohydrate and fish survival rate, albeit insignificant. Only gamma irradiation significantly increased in vitro protein digestibility of the diet, and microwave irradiation increased starch gelatinization and water solubility (Pb0.05). Fish fed microwave-treated diet showed highest values in all studied growth indicators and digestive enzyme specific activities (except lipase), with significantly higher amylase specific activity and activity ratio of amylase to trypsin (A/T ratio). Correlation analysis indicated significant relationships (Pb0.05) among the levels of total protease, amylase and trypsin, and between SGR and A/T ratio. Muscle and body compositions of juveniles fed on microwave- or gamma-irradiated diets were similar to the control, while the juveniles fed on probiotic- or carbohydrase-supplemented diets showed lower protein depositions (Pb0.05). Similar levels of RNA, RNA/Protein ratio, and Protein/Lipid ratio in body andmuscle in all dietary groups fed ad libitumsuggested that the improved growth performance in juvenile Siamese fighting fish fed on microwave-irradiated diet may not be only due to improved physicochemical properties of the diet but also improved fish consumption rate.no_NO
dc.language.isoengno_NO
dc.publisherElsevierno_NO
dc.subjectnutritionno_NO
dc.subjecternæringno_NO
dc.subjectdiet experimentsno_NO
dc.subjectforingseksperimentno_NO
dc.subjectsiamese fighting fishno_NO
dc.subjectsiamesisk kampfiskno_NO
dc.titleEffects of different modified diets on growth, digestive enzyme activities and muscle compositions in juvenile Siamese fighting fish (Betta splendens Regan, 1910)no_NO
dc.typeJournal articleno_NO
dc.typePeer reviewedno_NO
dc.subject.nsiVDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Fish health: 923no_NO
dc.subject.nsiVDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497no_NO
dc.source.pagenumber36 s.no_NO
dc.source.volume322-323no_NO
dc.source.journalAquacultureno_NO
dc.identifier.doihttp://dx.doi.org/10.1016/j.aquaculture.2011.10.006


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