Genetic parameters for reproductive and longevity traits in Bísaro pigs
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , |
Tipo de documento: | Artigo de conferência |
Idioma: | por |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10174/26291 https://doi.org/10.3920/978-90-8686-890-2 |
Resumo: | The Bísaro pig has gained popularity in recent years reflecting the success of the conservation program. Nevertheless,no data is available for animal genetic evaluation in this breed. Therefore, this study aimed to estimate genetic parameters and trends for reproduction related traits in Bísaro pigs. Through a REML procedure applied to mixed linear models, 27,844 farrowing records, from 1995 to 2017, were used to analyse total number of pigs born per litter (NBT), number of pigs born alive (NBA), number of stillborn (NSB), number of pigs weaned per litter (NBW), age at first farrowing (AFF), farrowing interval (FIT), length of productive life (LPL), lifetime number of litters (LNL), lifetime pig production (LTP) and lifetime efficiency (LTP365). The heritability estimates for litter size traits were low and ranged from 0.007±0.004 to 0.015±0.006. Differently, the heritabilities for traits related to longevity and lifetime production traits were moderate (0.078±0.026 to 0.121±0.030). AFF registered the highest heritability value (0.345±0.028). NSB and FIT presented high values of additive genetic coefficient of variation (0.177 and 0.271) in contrast with low heritability estimates (0.007±0.004 and 0.002±0.005). Very tight genetic correlations were found between NBT and NBA (0.968), NBW and NBT (0.974), and NBW and NBA (0.945). Weak genetic correlations were found between both NBT and NSB (0.352) and between NBA and NSB (0.107). Longevity andlifetime production traits presented high positive genetic correlations (0.811-0.969) and moderate to high phenotypic correlations (0.266-0.946). No major genetic changes were registered over time for most of the analysed traits, except for AFF and LPL, having registered an overall decreased of mean estimated breeding values (21.3 and 17.5) and negative genetic trends of -0.6 and -0.4 (P<0.001), respectively. |
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Genetic parameters for reproductive and longevity traits in Bísaro pigsThe Bísaro pig has gained popularity in recent years reflecting the success of the conservation program. Nevertheless,no data is available for animal genetic evaluation in this breed. Therefore, this study aimed to estimate genetic parameters and trends for reproduction related traits in Bísaro pigs. Through a REML procedure applied to mixed linear models, 27,844 farrowing records, from 1995 to 2017, were used to analyse total number of pigs born per litter (NBT), number of pigs born alive (NBA), number of stillborn (NSB), number of pigs weaned per litter (NBW), age at first farrowing (AFF), farrowing interval (FIT), length of productive life (LPL), lifetime number of litters (LNL), lifetime pig production (LTP) and lifetime efficiency (LTP365). The heritability estimates for litter size traits were low and ranged from 0.007±0.004 to 0.015±0.006. Differently, the heritabilities for traits related to longevity and lifetime production traits were moderate (0.078±0.026 to 0.121±0.030). AFF registered the highest heritability value (0.345±0.028). NSB and FIT presented high values of additive genetic coefficient of variation (0.177 and 0.271) in contrast with low heritability estimates (0.007±0.004 and 0.002±0.005). Very tight genetic correlations were found between NBT and NBA (0.968), NBW and NBT (0.974), and NBW and NBA (0.945). Weak genetic correlations were found between both NBT and NSB (0.352) and between NBA and NSB (0.107). Longevity andlifetime production traits presented high positive genetic correlations (0.811-0.969) and moderate to high phenotypic correlations (0.266-0.946). No major genetic changes were registered over time for most of the analysed traits, except for AFF and LPL, having registered an overall decreased of mean estimated breeding values (21.3 and 17.5) and negative genetic trends of -0.6 and -0.4 (P<0.001), respectively.Wageninger Academic Publishers2020-01-06T16:53:49Z2020-01-062019-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjecthttp://hdl.handle.net/10174/26291http://hdl.handle.net/10174/26291https://doi.org/10.3920/978-90-8686-890-2porG. Paixão, A. Martins, A. Esteves, R. Payan-Carreira and N. Carolino (2019) Genetic parameters for reproductive and longevity traits in Bísaro pigs. In Book of Abstracts of the 70th Annual Meeting of the European Federation of Animal Science, ISBN: 978-90-8686-339-6.Pp. 411simnaonaondndndrtpayan@uevora.ptnd207Paixão, GustavoMartins, ÂngelaEsteves, AlexandraPayan-Carreira, RitaCarolino, Nunoinfo: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:RCAAP2023-08-08T04:36:17ZPortal AgregadorONG |
dc.title.none.fl_str_mv |
Genetic parameters for reproductive and longevity traits in Bísaro pigs |
title |
Genetic parameters for reproductive and longevity traits in Bísaro pigs |
spellingShingle |
Genetic parameters for reproductive and longevity traits in Bísaro pigs Paixão, Gustavo |
title_short |
Genetic parameters for reproductive and longevity traits in Bísaro pigs |
title_full |
Genetic parameters for reproductive and longevity traits in Bísaro pigs |
title_fullStr |
Genetic parameters for reproductive and longevity traits in Bísaro pigs |
title_full_unstemmed |
Genetic parameters for reproductive and longevity traits in Bísaro pigs |
title_sort |
Genetic parameters for reproductive and longevity traits in Bísaro pigs |
author |
Paixão, Gustavo |
author_facet |
Paixão, Gustavo Martins, Ângela Esteves, Alexandra Payan-Carreira, Rita Carolino, Nuno |
author_role |
author |
author2 |
Martins, Ângela Esteves, Alexandra Payan-Carreira, Rita Carolino, Nuno |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Paixão, Gustavo Martins, Ângela Esteves, Alexandra Payan-Carreira, Rita Carolino, Nuno |
description |
The Bísaro pig has gained popularity in recent years reflecting the success of the conservation program. Nevertheless,no data is available for animal genetic evaluation in this breed. Therefore, this study aimed to estimate genetic parameters and trends for reproduction related traits in Bísaro pigs. Through a REML procedure applied to mixed linear models, 27,844 farrowing records, from 1995 to 2017, were used to analyse total number of pigs born per litter (NBT), number of pigs born alive (NBA), number of stillborn (NSB), number of pigs weaned per litter (NBW), age at first farrowing (AFF), farrowing interval (FIT), length of productive life (LPL), lifetime number of litters (LNL), lifetime pig production (LTP) and lifetime efficiency (LTP365). The heritability estimates for litter size traits were low and ranged from 0.007±0.004 to 0.015±0.006. Differently, the heritabilities for traits related to longevity and lifetime production traits were moderate (0.078±0.026 to 0.121±0.030). AFF registered the highest heritability value (0.345±0.028). NSB and FIT presented high values of additive genetic coefficient of variation (0.177 and 0.271) in contrast with low heritability estimates (0.007±0.004 and 0.002±0.005). Very tight genetic correlations were found between NBT and NBA (0.968), NBW and NBT (0.974), and NBW and NBA (0.945). Weak genetic correlations were found between both NBT and NSB (0.352) and between NBA and NSB (0.107). Longevity andlifetime production traits presented high positive genetic correlations (0.811-0.969) and moderate to high phenotypic correlations (0.266-0.946). No major genetic changes were registered over time for most of the analysed traits, except for AFF and LPL, having registered an overall decreased of mean estimated breeding values (21.3 and 17.5) and negative genetic trends of -0.6 and -0.4 (P<0.001), respectively. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-01-01T00:00:00Z 2020-01-06T16:53:49Z 2020-01-06 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/conferenceObject |
format |
conferenceObject |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10174/26291 http://hdl.handle.net/10174/26291 https://doi.org/10.3920/978-90-8686-890-2 |
url |
http://hdl.handle.net/10174/26291 https://doi.org/10.3920/978-90-8686-890-2 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
G. Paixão, A. Martins, A. Esteves, R. Payan-Carreira and N. Carolino (2019) Genetic parameters for reproductive and longevity traits in Bísaro pigs. In Book of Abstracts of the 70th Annual Meeting of the European Federation of Animal Science, ISBN: 978-90-8686-339-6.Pp. 411 sim nao nao nd nd nd rtpayan@uevora.pt nd 207 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Wageninger Academic Publishers |
publisher.none.fl_str_mv |
Wageninger Academic Publishers |
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 |
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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) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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