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Comparative ontogeny of the digestive tract of Oncorhynchus mykiss female x Salmo trutta caspius male triploid hybrids to their parental species

2021-04Journal article Open Access
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dc.contributor.authorNajafpour, Babak
dc.contributor.authorDorafshan, Salar
dc.contributor.authorPaykan Heyrati, Fatemeh
dc.contributor.authorCanario, Adelino
dc.contributor.authorPower, Deborah
dc.date.accessioned2021-06-18T16:25:45Z
dc.date.available2021-06-18T16:25:45Z
dc.date.issued2021-04
dc.description.abstractthe ontogeny of the gastrointestinal tract of the hybrid between female rainbow trout, RT (Oncorhynchus mykiss) and male Caspian brown trout, CBT (Salmo trutta caspius) was compared to the parental species. Larvae were collected for histology and enzymatic assays (amylase, lipase and trypsin) at 3, 6, 9, 12, 15, 18, 21, 26, 31, 35, 40 and 45 days post-hatch (dph). the development of the gastrointestinal tract (GI-tract) and the onset of digestive enzyme production was variable between groups. the GI-tract post-hatch was a relatively simple tubular structure, and a rudimentary oesophagus was differentiated from other regions at 3 dph in all studied groups. the pyloric caeca and the U-shaped stomach were clearly visible at 26, 35 and 40 dph in RT, triploid hybrid and CBT, respectively. An abrupt increase in trypsin activity at 31, 35 and 45 dph was identified in CBT, RT and the triploid hybrid, respectively. the increasing activity of trypsin and decreasing activity of lipase during larval development suggests that the CBT, RT and triploid hybrid rely more on dietary proteins than lipids with increasing age. the hybrid grew better and had a faster GI-tract development than CBT, while RT performed best overall.
dc.description.sponsorshipPortuguese Foundation for Science and Technology
dc.description.sponsorshipIsfahan University of Technology [95.118.234]
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.doi10.1111/anu.13196
dc.identifier.issn1353-5773
dc.identifier.urihttp://hdl.handle.net/10400.1/15665
dc.language.isoeng
dc.peerreviewedyes
dc.publisherWiley
dc.subjectDigestive enzymes
dc.subjectGastrointestinal development
dc.subjectHybridization
dc.subjectLarval development
dc.subjectSalmonid
dc.subject.otherFisheries
dc.titleComparative ontogeny of the digestive tract of Oncorhynchus mykiss female x Salmo trutta caspius male triploid hybrids to their parental species
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/154715/PT
oaire.citation.endPage438
oaire.citation.issue2
oaire.citation.startPage427
oaire.citation.titleAquaculture Nutrition
oaire.citation.volume27
oaire.fundingStream6817 - DCRRNI ID
person.familyNameCanario
person.familyNamePower
person.givenNameAdelino
person.givenNameDeborah Mary
person.identifier143624
person.identifier.ciencia-id1F1E-D3B3-F804
person.identifier.ciencia-id891A-8A44-3CAE
person.identifier.orcid0000-0002-6244-6468
person.identifier.orcid0000-0003-1366-0246
person.identifier.ridC-7942-2009
person.identifier.scopus-author-id56568523700
person.identifier.scopus-author-id7101806760
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccess
rcaap.typearticle
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relation.isAuthorOfPublicationc68f5ffb-63f6-4c70-8957-29e464fb59c0
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