Comparative ontogeny of the digestive tract of Oncorhynchus mykiss female x Salmo trutta caspius male triploid hybrids to their parental species
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.1/15665 |
Resumo: | the 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. |
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Comparative ontogeny of the digestive tract of Oncorhynchus mykiss female x Salmo trutta caspius male triploid hybrids to their parental speciesDigestive enzymesGastrointestinal developmentHybridizationLarval developmentSalmonidFisheriesthe 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.Portuguese Foundation for Science and TechnologyIsfahan University of Technology [95.118.234]WileySapientiaNajafpour, BabakDorafshan, SalarPaykan Heyrati, FatemehCanario, AdelinoPower, Deborah2021-06-18T16:25:45Z2021-042021-04-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.1/15665eng1353-577310.1111/anu.13196info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-24T10:28:06Zoai:sapientia.ualg.pt:10400.1/15665Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:06:28.767883Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Comparative ontogeny of the digestive tract of Oncorhynchus mykiss female x Salmo trutta caspius male triploid hybrids to their parental species |
title |
Comparative ontogeny of the digestive tract of Oncorhynchus mykiss female x Salmo trutta caspius male triploid hybrids to their parental species |
spellingShingle |
Comparative ontogeny of the digestive tract of Oncorhynchus mykiss female x Salmo trutta caspius male triploid hybrids to their parental species Najafpour, Babak Digestive enzymes Gastrointestinal development Hybridization Larval development Salmonid Fisheries |
title_short |
Comparative ontogeny of the digestive tract of Oncorhynchus mykiss female x Salmo trutta caspius male triploid hybrids to their parental species |
title_full |
Comparative ontogeny of the digestive tract of Oncorhynchus mykiss female x Salmo trutta caspius male triploid hybrids to their parental species |
title_fullStr |
Comparative ontogeny of the digestive tract of Oncorhynchus mykiss female x Salmo trutta caspius male triploid hybrids to their parental species |
title_full_unstemmed |
Comparative ontogeny of the digestive tract of Oncorhynchus mykiss female x Salmo trutta caspius male triploid hybrids to their parental species |
title_sort |
Comparative ontogeny of the digestive tract of Oncorhynchus mykiss female x Salmo trutta caspius male triploid hybrids to their parental species |
author |
Najafpour, Babak |
author_facet |
Najafpour, Babak Dorafshan, Salar Paykan Heyrati, Fatemeh Canario, Adelino Power, Deborah |
author_role |
author |
author2 |
Dorafshan, Salar Paykan Heyrati, Fatemeh Canario, Adelino Power, Deborah |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Sapientia |
dc.contributor.author.fl_str_mv |
Najafpour, Babak Dorafshan, Salar Paykan Heyrati, Fatemeh Canario, Adelino Power, Deborah |
dc.subject.por.fl_str_mv |
Digestive enzymes Gastrointestinal development Hybridization Larval development Salmonid Fisheries |
topic |
Digestive enzymes Gastrointestinal development Hybridization Larval development Salmonid Fisheries |
description |
the 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. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-06-18T16:25:45Z 2021-04 2021-04-01T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10400.1/15665 |
url |
http://hdl.handle.net/10400.1/15665 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
1353-5773 10.1111/anu.13196 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Wiley |
publisher.none.fl_str_mv |
Wiley |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799133306029080576 |