Show simple item record

dc.contributor.authorZargareian, P.
dc.contributor.authorAbedian Kinari, A.
dc.contributor.authorNazari, R.M.
dc.coverage.spatialISWen_US
dc.coverage.spatialIranen_US
dc.date.accessioned2018-02-15T08:25:04Z
dc.date.available2018-02-15T08:25:04Z
dc.date.issued2007
dc.identifier.issn1026-1354
dc.identifier.urihttp://hdl.handle.net/1834/11292
dc.description.abstractInfluence of phytase enzyme and replacement of fishmeal protein by soybean meal protein on growth and body composition of rainbow trout (Oncorhynchus mykiss) specimens each with a mean weight of 121.75~c5.95g were studied. Experimental diets by factorial method 3*3, containing three levels of replacement (0.0, 35 and 70%) and three levels of microbial phytase (0.0, 1000, 2000 units/kg diet) were formulated and prepared. Nine treatments and three replicates of random groups of 20 fish per each 2 cubic meter (2*2*0.5m) tank were used in the study. All diets contained 36-38% protein and about 4000 cal/g energy. During the 9 weeks period of the study, fish were fed to satiation level, three times daily. Statistical results indicated that the increase of replacement level to 35% had no significant effect on growth index (P greater than or equal to 0.05). Effect of replacement on body composition was not significant, except for crude energy which decreased in 70% level (P~,0.05). Effect of phytase enzyme on growth index was positive and 2000 units/kg diet of phytase showed the best result (P~,0.05), but phytase levels had no significant effect on body composition. Result also showed that there was a significant interaction between phytase enzyme and meal rep lacement (P~,0.05). We suggest using 2000 units/kg diets of phytase with at least 35% replacement of fish meal protein by soybean meal protein as a suitable formula for growing rainbow trout.en_US
dc.language.isofaen_US
dc.relation.urihttp://isfj.areo.ir/en_US
dc.subject.otherCondition factoren_US
dc.subject.otherNutritional requirementsen_US
dc.subject.otherOncorhynchus mykissen_US
dc.titleInfluence of supplemental phytase on fish meal replacement by soybean and its effects on growth and body composition of Rainbow trout (Oncorhynchus mykiss)en_US
dc.typeJournal Contributionen_US
dc.bibliographicCitation.issue2en_US
dc.bibliographicCitation.titleIranian Scientific Fisheries Journalen_US
dc.bibliographicCitation.volume16en_US
dc.description.statusPublisheden_US
dc.format.pagerangepp.75-84en_US
dc.subject.asfaDietsen_US
dc.subject.asfaGrowthen_US
dc.subject.asfaBody weighten_US
dc.subject.asfaFish cultureen_US
dc.subject.asfaArtificial feedingen_US
dc.subject.asfaFeed compositionen_US
dc.subject.asfaFreshwateren_US
dc.type.refereedRefereeden_US
refterms.dateFOA2021-01-30T18:48:27Z


Files in this item

Thumbnail
Name:
75.pdf
Size:
398.5Kb
Format:
PDF

This item appears in the following Collection(s)

Show simple item record