Genetic (co)variation between resistance to Aeromonas hydrophila and growth in tambaqui (Colossoma macropomum)

Detalhes bibliográficos
Autor(a) principal: Ariede, Raquel B. [UNESP]
Data de Publicação: 2020
Outros Autores: Freitas, Milena V. [UNESP], Agudelo, John F.G. [UNESP], Borges, Carolina H.S. [UNESP], Lira, Lieschen V.G. [UNESP], Yoshida, Grazyella M., Pilarski, Fabiana [UNESP], Yáñez, José M., Hashimoto, Diogo T. [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1016/j.aquaculture.2020.735225
http://hdl.handle.net/11449/200172
Resumo: Tambaqui (Colossoma macropomum) is the main native fish farmed in South American continental aquaculture. One of the major pathogens affecting world fresh water aquaculture is the bacterium Aeromonas hydrophila, which generates several disease outbreaks and production losses in farmed tambaqui stocks. Up to date, there are no studies focusing on understanding the quantitative basis for the genetic improvement for disease resistance in tambaqui. Thus, the objective of this study was to determine the genetic parameters for resistance to A. hydrophila and the genetic correlation with average daily gain in juveniles of tambaqui, to determine whether these traits can be included in selective breeding programs. Estimation of genetic parameters was performed using data from an experimental challenge performed in 18 full-sib families, using a total of 576 individuals. Before bacterial challenge, all animals were evaluated for average daily gain (ADG) in the juvenile phase during 30 days. The challenge spanned 120 h (5 days) and disease resistance traits were defined as: i) binary survival (BS) and, ii) time of death (TD) of fish presenting clinical signs of A. hydrophila infection. The mean ADG was 0.49 g/day (SD = 0.21) in the population and heritability for this trait was moderate (h2 = 0.37 ± 0.13). BS and TD varied considerably among families (26% to 89% and 10.7 h to 69.2 h, respectively), which indicated a significant genetic variation related to resistance to A. hydrophila infection. Low to moderate values for heritability were found for BS and TD (0.17 ± 0.06 and 0.23 ± 0.09, respectively). The genetic correlations between resistance to A. hydrophila and ADG in juveniles of tambaqui were not significantly different from zero. The significant genetic variation found for A. hydrophila resistance in tambaqui indicates that selecting superior genotypes is a viable approach to reducing the impact of diseases outbreaks in aquaculture.
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spelling Genetic (co)variation between resistance to Aeromonas hydrophila and growth in tambaqui (Colossoma macropomum)AeromoniosisDisease resistanceGenetic parametersHeritabilityTambaqui (Colossoma macropomum) is the main native fish farmed in South American continental aquaculture. One of the major pathogens affecting world fresh water aquaculture is the bacterium Aeromonas hydrophila, which generates several disease outbreaks and production losses in farmed tambaqui stocks. Up to date, there are no studies focusing on understanding the quantitative basis for the genetic improvement for disease resistance in tambaqui. Thus, the objective of this study was to determine the genetic parameters for resistance to A. hydrophila and the genetic correlation with average daily gain in juveniles of tambaqui, to determine whether these traits can be included in selective breeding programs. Estimation of genetic parameters was performed using data from an experimental challenge performed in 18 full-sib families, using a total of 576 individuals. Before bacterial challenge, all animals were evaluated for average daily gain (ADG) in the juvenile phase during 30 days. The challenge spanned 120 h (5 days) and disease resistance traits were defined as: i) binary survival (BS) and, ii) time of death (TD) of fish presenting clinical signs of A. hydrophila infection. The mean ADG was 0.49 g/day (SD = 0.21) in the population and heritability for this trait was moderate (h2 = 0.37 ± 0.13). BS and TD varied considerably among families (26% to 89% and 10.7 h to 69.2 h, respectively), which indicated a significant genetic variation related to resistance to A. hydrophila infection. Low to moderate values for heritability were found for BS and TD (0.17 ± 0.06 and 0.23 ± 0.09, respectively). The genetic correlations between resistance to A. hydrophila and ADG in juveniles of tambaqui were not significantly different from zero. The significant genetic variation found for A. hydrophila resistance in tambaqui indicates that selecting superior genotypes is a viable approach to reducing the impact of diseases outbreaks in aquaculture.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)São Paulo State University (Unesp) Aquaculture Center of UnespFacultad de Ciencias Veterinarias y Pecuarias Universidad de ChileSão Paulo State University (Unesp) Aquaculture Center of UnespCAPES: 001FAPESP: 2017/19717–3FAPESP: 2018/08416–5FAPESP: 2019/10662–7CNPq: 311559/2018–2CNPq: 422670/2018–9Universidade Estadual Paulista (Unesp)Universidad de ChileAriede, Raquel B. [UNESP]Freitas, Milena V. [UNESP]Agudelo, John F.G. [UNESP]Borges, Carolina H.S. [UNESP]Lira, Lieschen V.G. [UNESP]Yoshida, Grazyella M.Pilarski, Fabiana [UNESP]Yáñez, José M.Hashimoto, Diogo T. [UNESP]2020-12-12T01:59:33Z2020-12-12T01:59:33Z2020-06-30info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.aquaculture.2020.735225Aquaculture, v. 523.0044-8486http://hdl.handle.net/11449/20017210.1016/j.aquaculture.2020.7352252-s2.0-85081673855Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengAquacultureinfo:eu-repo/semantics/openAccess2024-04-09T15:10:26Zoai:repositorio.unesp.br:11449/200172Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T13:58:01.149373Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Genetic (co)variation between resistance to Aeromonas hydrophila and growth in tambaqui (Colossoma macropomum)
title Genetic (co)variation between resistance to Aeromonas hydrophila and growth in tambaqui (Colossoma macropomum)
spellingShingle Genetic (co)variation between resistance to Aeromonas hydrophila and growth in tambaqui (Colossoma macropomum)
Ariede, Raquel B. [UNESP]
Aeromoniosis
Disease resistance
Genetic parameters
Heritability
title_short Genetic (co)variation between resistance to Aeromonas hydrophila and growth in tambaqui (Colossoma macropomum)
title_full Genetic (co)variation between resistance to Aeromonas hydrophila and growth in tambaqui (Colossoma macropomum)
title_fullStr Genetic (co)variation between resistance to Aeromonas hydrophila and growth in tambaqui (Colossoma macropomum)
title_full_unstemmed Genetic (co)variation between resistance to Aeromonas hydrophila and growth in tambaqui (Colossoma macropomum)
title_sort Genetic (co)variation between resistance to Aeromonas hydrophila and growth in tambaqui (Colossoma macropomum)
author Ariede, Raquel B. [UNESP]
author_facet Ariede, Raquel B. [UNESP]
Freitas, Milena V. [UNESP]
Agudelo, John F.G. [UNESP]
Borges, Carolina H.S. [UNESP]
Lira, Lieschen V.G. [UNESP]
Yoshida, Grazyella M.
Pilarski, Fabiana [UNESP]
Yáñez, José M.
Hashimoto, Diogo T. [UNESP]
author_role author
author2 Freitas, Milena V. [UNESP]
Agudelo, John F.G. [UNESP]
Borges, Carolina H.S. [UNESP]
Lira, Lieschen V.G. [UNESP]
Yoshida, Grazyella M.
Pilarski, Fabiana [UNESP]
Yáñez, José M.
Hashimoto, Diogo T. [UNESP]
author2_role author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
Universidad de Chile
dc.contributor.author.fl_str_mv Ariede, Raquel B. [UNESP]
Freitas, Milena V. [UNESP]
Agudelo, John F.G. [UNESP]
Borges, Carolina H.S. [UNESP]
Lira, Lieschen V.G. [UNESP]
Yoshida, Grazyella M.
Pilarski, Fabiana [UNESP]
Yáñez, José M.
Hashimoto, Diogo T. [UNESP]
dc.subject.por.fl_str_mv Aeromoniosis
Disease resistance
Genetic parameters
Heritability
topic Aeromoniosis
Disease resistance
Genetic parameters
Heritability
description Tambaqui (Colossoma macropomum) is the main native fish farmed in South American continental aquaculture. One of the major pathogens affecting world fresh water aquaculture is the bacterium Aeromonas hydrophila, which generates several disease outbreaks and production losses in farmed tambaqui stocks. Up to date, there are no studies focusing on understanding the quantitative basis for the genetic improvement for disease resistance in tambaqui. Thus, the objective of this study was to determine the genetic parameters for resistance to A. hydrophila and the genetic correlation with average daily gain in juveniles of tambaqui, to determine whether these traits can be included in selective breeding programs. Estimation of genetic parameters was performed using data from an experimental challenge performed in 18 full-sib families, using a total of 576 individuals. Before bacterial challenge, all animals were evaluated for average daily gain (ADG) in the juvenile phase during 30 days. The challenge spanned 120 h (5 days) and disease resistance traits were defined as: i) binary survival (BS) and, ii) time of death (TD) of fish presenting clinical signs of A. hydrophila infection. The mean ADG was 0.49 g/day (SD = 0.21) in the population and heritability for this trait was moderate (h2 = 0.37 ± 0.13). BS and TD varied considerably among families (26% to 89% and 10.7 h to 69.2 h, respectively), which indicated a significant genetic variation related to resistance to A. hydrophila infection. Low to moderate values for heritability were found for BS and TD (0.17 ± 0.06 and 0.23 ± 0.09, respectively). The genetic correlations between resistance to A. hydrophila and ADG in juveniles of tambaqui were not significantly different from zero. The significant genetic variation found for A. hydrophila resistance in tambaqui indicates that selecting superior genotypes is a viable approach to reducing the impact of diseases outbreaks in aquaculture.
publishDate 2020
dc.date.none.fl_str_mv 2020-12-12T01:59:33Z
2020-12-12T01:59:33Z
2020-06-30
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://dx.doi.org/10.1016/j.aquaculture.2020.735225
Aquaculture, v. 523.
0044-8486
http://hdl.handle.net/11449/200172
10.1016/j.aquaculture.2020.735225
2-s2.0-85081673855
url http://dx.doi.org/10.1016/j.aquaculture.2020.735225
http://hdl.handle.net/11449/200172
identifier_str_mv Aquaculture, v. 523.
0044-8486
10.1016/j.aquaculture.2020.735225
2-s2.0-85081673855
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Aquaculture
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
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