Estimates of genetic and phenotypic parameters for feeding behaviour and feed efficiency-related traits in Nelore cattle

Detalhes bibliográficos
Autor(a) principal: Kava, Rafaela [UNESP]
Data de Publicação: 2023
Outros Autores: Peripolli, Elisa, Brunes, Ludmilla C., Espigolan, Rafael, Mendes, Egleu D. M., da Silva Neto, João Barbosa [UNESP], Londoño-Gil, Marisol [UNESP], Sainz, Roberto D., Lobo, Raysildo B., Baldi, Fernando [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1111/jbg.12756
http://hdl.handle.net/11449/246647
Resumo: The objective of this study was to obtain (co)variance components, heritability, and genetic and phenotypic correlation estimates for feed efficiency and feed behaviour-related indicator traits. Further, it aimed to predict the direct and correlated responses for feed efficiency traits when selection was applied for feeding behaviour-related traits in Nelore cattle. Phenotypic records (n = 4840) from 125 feed efficiency tests (RFI: Residual feed intake and DMI: Dry matter intake) carried out between 2011 and 2018 were considered in this study. Animals belonged to five farms located in two Brazilian geographical regions (Midwest and Southeast). Animals under similar management and environmental conditions in the feedlot were evaluated when they attained an average of 13.5 ± 4.15 months of age. Feed behaviour-related traits were also obtained, including meal criteria (MC), meal frequency (MF), average meal duration (AMD), meal duration (MD), average consumption per meal (ACM), and consumption rate (CR) through the GrowSafe System® electronic bunk system. The contemporary groups for all traits were composed of farm, management group, feed efficiency test, sex, and birth year. The (co)variance components were estimated using the restricted maximum likelihood method considering a multi-trait (n = 8) animal model. The heritability estimates for RFI (0.23 ± 0.02), DMI (0.31 ± 0.02), MF (0.65 ± 0.02), AMD (0.29 ± 0.02), ACM (0.24 ± 0.02), MD (0.41 ± 0.02), MC (0.48 ± 0.02), and CR (0.42 ± 0.02) were moderate to high. The highest genetic correlation was obtained between CR and MD (−0.91 ± 0.04), MD and AMD (0.73 ± 0.03), CR and AMD (−0.68 ± 0.04), and RFI and DMI (0.81 ± 0.02). The highest phenotypic correlation was between ACM and AMD (0.76 ± 0.02), DMI and MD (0.77 ± 0.02), and DMI and RFI (0.77 ± 0.02). Genetic improvement for feed efficiency and feeding behaviour-related traits is feasible and the results obtained herein provided valuable information regarding the genetic background of Nelore feeding behaviour-related traits. The genetic association between feeding behaviour and feed efficiency-related traits suggested that animals spending less time feeding at a low feeding rate also had lower DMI and higher feed efficiency (RFI), and likely had lower energy maintenance requirements. The relative efficiency of selection showed that feeding behaviour-related traits were not adequate indicator traits to improve RFI and DMI. The DMI might be an effective selection criterion to improve RFI and reduce the herd's maintenance requirements.
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spelling Estimates of genetic and phenotypic parameters for feeding behaviour and feed efficiency-related traits in Nelore cattlegenetic correlationheritabilityphenotypic correlationresidual feed intakezebu cattleThe objective of this study was to obtain (co)variance components, heritability, and genetic and phenotypic correlation estimates for feed efficiency and feed behaviour-related indicator traits. Further, it aimed to predict the direct and correlated responses for feed efficiency traits when selection was applied for feeding behaviour-related traits in Nelore cattle. Phenotypic records (n = 4840) from 125 feed efficiency tests (RFI: Residual feed intake and DMI: Dry matter intake) carried out between 2011 and 2018 were considered in this study. Animals belonged to five farms located in two Brazilian geographical regions (Midwest and Southeast). Animals under similar management and environmental conditions in the feedlot were evaluated when they attained an average of 13.5 ± 4.15 months of age. Feed behaviour-related traits were also obtained, including meal criteria (MC), meal frequency (MF), average meal duration (AMD), meal duration (MD), average consumption per meal (ACM), and consumption rate (CR) through the GrowSafe System® electronic bunk system. The contemporary groups for all traits were composed of farm, management group, feed efficiency test, sex, and birth year. The (co)variance components were estimated using the restricted maximum likelihood method considering a multi-trait (n = 8) animal model. The heritability estimates for RFI (0.23 ± 0.02), DMI (0.31 ± 0.02), MF (0.65 ± 0.02), AMD (0.29 ± 0.02), ACM (0.24 ± 0.02), MD (0.41 ± 0.02), MC (0.48 ± 0.02), and CR (0.42 ± 0.02) were moderate to high. The highest genetic correlation was obtained between CR and MD (−0.91 ± 0.04), MD and AMD (0.73 ± 0.03), CR and AMD (−0.68 ± 0.04), and RFI and DMI (0.81 ± 0.02). The highest phenotypic correlation was between ACM and AMD (0.76 ± 0.02), DMI and MD (0.77 ± 0.02), and DMI and RFI (0.77 ± 0.02). Genetic improvement for feed efficiency and feeding behaviour-related traits is feasible and the results obtained herein provided valuable information regarding the genetic background of Nelore feeding behaviour-related traits. The genetic association between feeding behaviour and feed efficiency-related traits suggested that animals spending less time feeding at a low feeding rate also had lower DMI and higher feed efficiency (RFI), and likely had lower energy maintenance requirements. The relative efficiency of selection showed that feeding behaviour-related traits were not adequate indicator traits to improve RFI and DMI. The DMI might be an effective selection criterion to improve RFI and reduce the herd's maintenance requirements.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Department of Animal Science São Paulo State University –Júlio de Mesquita Filho (UNESP) Prof. Paulo Donato CastelaneDepartment of Veterinary Medicine Faculty of Animal Science and Food Engineering University of Sao PauloEmbrapa Rice and BeansDepartment of Animal Science Texas A&M UniversityDepartment of Animal Science University of CaliforniaNational Association of Breeders and Researchers (ANCP)Department of Animal Science São Paulo State University –Júlio de Mesquita Filho (UNESP) Prof. Paulo Donato CastelaneUniversidade Estadual Paulista (UNESP)Universidade de São Paulo (USP)Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA)Texas A&M UniversityUniversity of CaliforniaNational Association of Breeders and Researchers (ANCP)Kava, Rafaela [UNESP]Peripolli, ElisaBrunes, Ludmilla C.Espigolan, RafaelMendes, Egleu D. M.da Silva Neto, João Barbosa [UNESP]Londoño-Gil, Marisol [UNESP]Sainz, Roberto D.Lobo, Raysildo B.Baldi, Fernando [UNESP]2023-07-29T12:46:38Z2023-07-29T12:46:38Z2023-05-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article264-275http://dx.doi.org/10.1111/jbg.12756Journal of Animal Breeding and Genetics, v. 140, n. 3, p. 264-275, 2023.1439-03880931-2668http://hdl.handle.net/11449/24664710.1111/jbg.127562-s2.0-85146258495Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of Animal Breeding and Geneticsinfo:eu-repo/semantics/openAccess2023-07-29T12:46:38Zoai:repositorio.unesp.br:11449/246647Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T20:51:23.633821Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Estimates of genetic and phenotypic parameters for feeding behaviour and feed efficiency-related traits in Nelore cattle
title Estimates of genetic and phenotypic parameters for feeding behaviour and feed efficiency-related traits in Nelore cattle
spellingShingle Estimates of genetic and phenotypic parameters for feeding behaviour and feed efficiency-related traits in Nelore cattle
Kava, Rafaela [UNESP]
genetic correlation
heritability
phenotypic correlation
residual feed intake
zebu cattle
title_short Estimates of genetic and phenotypic parameters for feeding behaviour and feed efficiency-related traits in Nelore cattle
title_full Estimates of genetic and phenotypic parameters for feeding behaviour and feed efficiency-related traits in Nelore cattle
title_fullStr Estimates of genetic and phenotypic parameters for feeding behaviour and feed efficiency-related traits in Nelore cattle
title_full_unstemmed Estimates of genetic and phenotypic parameters for feeding behaviour and feed efficiency-related traits in Nelore cattle
title_sort Estimates of genetic and phenotypic parameters for feeding behaviour and feed efficiency-related traits in Nelore cattle
author Kava, Rafaela [UNESP]
author_facet Kava, Rafaela [UNESP]
Peripolli, Elisa
Brunes, Ludmilla C.
Espigolan, Rafael
Mendes, Egleu D. M.
da Silva Neto, João Barbosa [UNESP]
Londoño-Gil, Marisol [UNESP]
Sainz, Roberto D.
Lobo, Raysildo B.
Baldi, Fernando [UNESP]
author_role author
author2 Peripolli, Elisa
Brunes, Ludmilla C.
Espigolan, Rafael
Mendes, Egleu D. M.
da Silva Neto, João Barbosa [UNESP]
Londoño-Gil, Marisol [UNESP]
Sainz, Roberto D.
Lobo, Raysildo B.
Baldi, Fernando [UNESP]
author2_role author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (UNESP)
Universidade de São Paulo (USP)
Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA)
Texas A&M University
University of California
National Association of Breeders and Researchers (ANCP)
dc.contributor.author.fl_str_mv Kava, Rafaela [UNESP]
Peripolli, Elisa
Brunes, Ludmilla C.
Espigolan, Rafael
Mendes, Egleu D. M.
da Silva Neto, João Barbosa [UNESP]
Londoño-Gil, Marisol [UNESP]
Sainz, Roberto D.
Lobo, Raysildo B.
Baldi, Fernando [UNESP]
dc.subject.por.fl_str_mv genetic correlation
heritability
phenotypic correlation
residual feed intake
zebu cattle
topic genetic correlation
heritability
phenotypic correlation
residual feed intake
zebu cattle
description The objective of this study was to obtain (co)variance components, heritability, and genetic and phenotypic correlation estimates for feed efficiency and feed behaviour-related indicator traits. Further, it aimed to predict the direct and correlated responses for feed efficiency traits when selection was applied for feeding behaviour-related traits in Nelore cattle. Phenotypic records (n = 4840) from 125 feed efficiency tests (RFI: Residual feed intake and DMI: Dry matter intake) carried out between 2011 and 2018 were considered in this study. Animals belonged to five farms located in two Brazilian geographical regions (Midwest and Southeast). Animals under similar management and environmental conditions in the feedlot were evaluated when they attained an average of 13.5 ± 4.15 months of age. Feed behaviour-related traits were also obtained, including meal criteria (MC), meal frequency (MF), average meal duration (AMD), meal duration (MD), average consumption per meal (ACM), and consumption rate (CR) through the GrowSafe System® electronic bunk system. The contemporary groups for all traits were composed of farm, management group, feed efficiency test, sex, and birth year. The (co)variance components were estimated using the restricted maximum likelihood method considering a multi-trait (n = 8) animal model. The heritability estimates for RFI (0.23 ± 0.02), DMI (0.31 ± 0.02), MF (0.65 ± 0.02), AMD (0.29 ± 0.02), ACM (0.24 ± 0.02), MD (0.41 ± 0.02), MC (0.48 ± 0.02), and CR (0.42 ± 0.02) were moderate to high. The highest genetic correlation was obtained between CR and MD (−0.91 ± 0.04), MD and AMD (0.73 ± 0.03), CR and AMD (−0.68 ± 0.04), and RFI and DMI (0.81 ± 0.02). The highest phenotypic correlation was between ACM and AMD (0.76 ± 0.02), DMI and MD (0.77 ± 0.02), and DMI and RFI (0.77 ± 0.02). Genetic improvement for feed efficiency and feeding behaviour-related traits is feasible and the results obtained herein provided valuable information regarding the genetic background of Nelore feeding behaviour-related traits. The genetic association between feeding behaviour and feed efficiency-related traits suggested that animals spending less time feeding at a low feeding rate also had lower DMI and higher feed efficiency (RFI), and likely had lower energy maintenance requirements. The relative efficiency of selection showed that feeding behaviour-related traits were not adequate indicator traits to improve RFI and DMI. The DMI might be an effective selection criterion to improve RFI and reduce the herd's maintenance requirements.
publishDate 2023
dc.date.none.fl_str_mv 2023-07-29T12:46:38Z
2023-07-29T12:46:38Z
2023-05-01
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/10.1111/jbg.12756
Journal of Animal Breeding and Genetics, v. 140, n. 3, p. 264-275, 2023.
1439-0388
0931-2668
http://hdl.handle.net/11449/246647
10.1111/jbg.12756
2-s2.0-85146258495
url http://dx.doi.org/10.1111/jbg.12756
http://hdl.handle.net/11449/246647
identifier_str_mv Journal of Animal Breeding and Genetics, v. 140, n. 3, p. 264-275, 2023.
1439-0388
0931-2668
10.1111/jbg.12756
2-s2.0-85146258495
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Journal of Animal Breeding and Genetics
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 264-275
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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