Estimates of genetic and phenotypic parameters for feeding behaviour and feed efficiency-related traits in Nelore cattle
Autor(a) principal: | |
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Data de Publicação: | 2023 |
Outros Autores: | , , , , , , , , |
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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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 |
|
_version_ |
1808129258370891776 |