Genetic parameters for resistance to Aeromonas hydrophila in the Neotropical fish pacu (Piaractus mesopotamicus)
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.aquaculture.2019.734442 http://hdl.handle.net/11449/189648 |
Resumo: | Pacu (Piaractus mesopotamicus) is one of the main farmed freshwater fish species of South America. Disease outbreaks caused by Aeromonas hydrophila are considered one of the major bottlenecks for the development of pacu production. Genetic selection for disease resistance may represent a sustainable and effective alternative to reduce mortality and, therefore, improve productive performance of pacu. To verify whether A. hydrophila resistance can be included in genetic selection programs, the estimation of genetic parameters is needed. The aim of this study was to estimate variance components and heritability for A. hydrophila resistance in pacu, through experimental challenge performed in 36 full-sib families, resulting in the analysis of 1094 individuals. During 14 days of challenge, survival rate (TS) and time of death (TD) of fish presenting clinical signs of A. hydrophila infection were recorded. No influence of weight on TS or TD was detected. Genetic data were analyzed with two different univariate animal models using TS and TD. The total cumulative TS varied considerably among families (0 to 65.5%), which indicated a significant phenotypic variation related to resistance to A. hydrophila infection. TD ranged from 313 to 14,846 min, with an average of 1722 ± 1476 min. Low values for heritability were found for TS and TD (0.15 ± 0.05 and 0.12 ± 0.05, respectively). Our results represent the first report of genetic parameters for disease resistance in a Neotropical fish species and indicate that resistance against A. hydrophila in pacu might be improved through selection breeding. |
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Genetic parameters for resistance to Aeromonas hydrophila in the Neotropical fish pacu (Piaractus mesopotamicus)AeromoniosisAnimal breedingDisease resistanceHeritabilityPacu (Piaractus mesopotamicus) is one of the main farmed freshwater fish species of South America. Disease outbreaks caused by Aeromonas hydrophila are considered one of the major bottlenecks for the development of pacu production. Genetic selection for disease resistance may represent a sustainable and effective alternative to reduce mortality and, therefore, improve productive performance of pacu. To verify whether A. hydrophila resistance can be included in genetic selection programs, the estimation of genetic parameters is needed. The aim of this study was to estimate variance components and heritability for A. hydrophila resistance in pacu, through experimental challenge performed in 36 full-sib families, resulting in the analysis of 1094 individuals. During 14 days of challenge, survival rate (TS) and time of death (TD) of fish presenting clinical signs of A. hydrophila infection were recorded. No influence of weight on TS or TD was detected. Genetic data were analyzed with two different univariate animal models using TS and TD. The total cumulative TS varied considerably among families (0 to 65.5%), which indicated a significant phenotypic variation related to resistance to A. hydrophila infection. TD ranged from 313 to 14,846 min, with an average of 1722 ± 1476 min. Low values for heritability were found for TS and TD (0.15 ± 0.05 and 0.12 ± 0.05, respectively). Our results represent the first report of genetic parameters for disease resistance in a Neotropical fish species and indicate that resistance against A. hydrophila in pacu might be improved through selection breeding.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)São Paulo State University (Unesp) Aquaculture Center of UnespSão Paulo State University (Unesp) Campus of RegistroFacultad de Ciencias Veterinarias y Pecuarias Universidad de ChileSão Paulo State University (Unesp) Aquaculture Center of UnespSão Paulo State University (Unesp) Campus of RegistroCAPES: 001CNPq: 140740/2016-3FAPESP: 2016/18294-9FAPESP: 2016/21011-9CNPq: 311559/2018-2Universidade Estadual Paulista (Unesp)Universidad de ChileMastrochirico-Filho, Vito A. [UNESP]Ariede, Raquel B. [UNESP]Freitas, Milena V. [UNESP]Lira, Lieschen V.G. [UNESP]Agudelo, John F.G. [UNESP]Pilarski, Fabiana [UNESP]Reis Neto, Rafael V. [UNESP]Yáñez, José M.Hashimoto, Diogo T. [UNESP]2019-10-06T16:47:24Z2019-10-06T16:47:24Z2019-11-15info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.aquaculture.2019.734442Aquaculture, v. 513.0044-8486http://hdl.handle.net/11449/18964810.1016/j.aquaculture.2019.7344422-s2.0-8507216863273281779163060370000-0002-4192-3982Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengAquacultureinfo:eu-repo/semantics/openAccess2024-05-03T13:20:52Zoai:repositorio.unesp.br:11449/189648Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T22:34:22.697630Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Genetic parameters for resistance to Aeromonas hydrophila in the Neotropical fish pacu (Piaractus mesopotamicus) |
title |
Genetic parameters for resistance to Aeromonas hydrophila in the Neotropical fish pacu (Piaractus mesopotamicus) |
spellingShingle |
Genetic parameters for resistance to Aeromonas hydrophila in the Neotropical fish pacu (Piaractus mesopotamicus) Mastrochirico-Filho, Vito A. [UNESP] Aeromoniosis Animal breeding Disease resistance Heritability |
title_short |
Genetic parameters for resistance to Aeromonas hydrophila in the Neotropical fish pacu (Piaractus mesopotamicus) |
title_full |
Genetic parameters for resistance to Aeromonas hydrophila in the Neotropical fish pacu (Piaractus mesopotamicus) |
title_fullStr |
Genetic parameters for resistance to Aeromonas hydrophila in the Neotropical fish pacu (Piaractus mesopotamicus) |
title_full_unstemmed |
Genetic parameters for resistance to Aeromonas hydrophila in the Neotropical fish pacu (Piaractus mesopotamicus) |
title_sort |
Genetic parameters for resistance to Aeromonas hydrophila in the Neotropical fish pacu (Piaractus mesopotamicus) |
author |
Mastrochirico-Filho, Vito A. [UNESP] |
author_facet |
Mastrochirico-Filho, Vito A. [UNESP] Ariede, Raquel B. [UNESP] Freitas, Milena V. [UNESP] Lira, Lieschen V.G. [UNESP] Agudelo, John F.G. [UNESP] Pilarski, Fabiana [UNESP] Reis Neto, Rafael V. [UNESP] Yáñez, José M. Hashimoto, Diogo T. [UNESP] |
author_role |
author |
author2 |
Ariede, Raquel B. [UNESP] Freitas, Milena V. [UNESP] Lira, Lieschen V.G. [UNESP] Agudelo, John F.G. [UNESP] Pilarski, Fabiana [UNESP] Reis Neto, Rafael V. [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 |
Mastrochirico-Filho, Vito A. [UNESP] Ariede, Raquel B. [UNESP] Freitas, Milena V. [UNESP] Lira, Lieschen V.G. [UNESP] Agudelo, John F.G. [UNESP] Pilarski, Fabiana [UNESP] Reis Neto, Rafael V. [UNESP] Yáñez, José M. Hashimoto, Diogo T. [UNESP] |
dc.subject.por.fl_str_mv |
Aeromoniosis Animal breeding Disease resistance Heritability |
topic |
Aeromoniosis Animal breeding Disease resistance Heritability |
description |
Pacu (Piaractus mesopotamicus) is one of the main farmed freshwater fish species of South America. Disease outbreaks caused by Aeromonas hydrophila are considered one of the major bottlenecks for the development of pacu production. Genetic selection for disease resistance may represent a sustainable and effective alternative to reduce mortality and, therefore, improve productive performance of pacu. To verify whether A. hydrophila resistance can be included in genetic selection programs, the estimation of genetic parameters is needed. The aim of this study was to estimate variance components and heritability for A. hydrophila resistance in pacu, through experimental challenge performed in 36 full-sib families, resulting in the analysis of 1094 individuals. During 14 days of challenge, survival rate (TS) and time of death (TD) of fish presenting clinical signs of A. hydrophila infection were recorded. No influence of weight on TS or TD was detected. Genetic data were analyzed with two different univariate animal models using TS and TD. The total cumulative TS varied considerably among families (0 to 65.5%), which indicated a significant phenotypic variation related to resistance to A. hydrophila infection. TD ranged from 313 to 14,846 min, with an average of 1722 ± 1476 min. Low values for heritability were found for TS and TD (0.15 ± 0.05 and 0.12 ± 0.05, respectively). Our results represent the first report of genetic parameters for disease resistance in a Neotropical fish species and indicate that resistance against A. hydrophila in pacu might be improved through selection breeding. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-10-06T16:47:24Z 2019-10-06T16:47:24Z 2019-11-15 |
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.2019.734442 Aquaculture, v. 513. 0044-8486 http://hdl.handle.net/11449/189648 10.1016/j.aquaculture.2019.734442 2-s2.0-85072168632 7328177916306037 0000-0002-4192-3982 |
url |
http://dx.doi.org/10.1016/j.aquaculture.2019.734442 http://hdl.handle.net/11449/189648 |
identifier_str_mv |
Aquaculture, v. 513. 0044-8486 10.1016/j.aquaculture.2019.734442 2-s2.0-85072168632 7328177916306037 0000-0002-4192-3982 |
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) |
repository.mail.fl_str_mv |
|
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1808129438938824704 |