Meta-análise de parâmetros genéticos relacionados ao consumo alimentar residual e a suas características componentes em bovinos
Autor(a) principal: | |
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Data de Publicação: | 2012 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1590/S0100-204X2012000200020 http://hdl.handle.net/11449/41939 |
Resumo: | The objective of this work was to estimate, by meta-analysis, the heritability (h(2)) and the genetic (r(g)) and phenotypic (r(f)) correlations of residual feed intake (RFI), and of its component traits in beef cattle from 19 breeds or genetic groups. Twenty-two scientific papers published from 1963 to 2011, from eight countries, totaling 52,637 cattle of ages from 28 days up to slaughter, were evaluated. The estimates of RFI, dry matter intake (DMI), average daily gain (ADG) and metabolic weight (BW0.75) were weighted by the inverse of sample variance. The variation between studies of h(2) for each trait was analyzed by weighted least squares. The effects of sex, country and breed were significant for h(2) of RFI, explaining 67% of variation between studies. For DMI, country and breed effects were significant and explained 96% of variation. Pooled estimates of h(2) were: 0.255+/-0.008, 0.278+/-0.012, 0.321+/-0.015, and 0.397+/-0.032 for RFI, DMI, ADG and BW0.75, respectively. Pooled estimates of genetic and phenotypic correlations were low between RFI and ADG and between RFI and BW0.75 (from -0.021+/-0.034 to 0.025+/-0.035), and moderate between RFI and DMI (0.636+/-0.035 and 0.698+/-0.041) and between DMI, ADG and BW0.75 (0.441+/-0.062 to 0.688+/-0.032). The trait RFI has lower heritability estimates than its components. |
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Meta-análise de parâmetros genéticos relacionados ao consumo alimentar residual e a suas características componentes em bovinosMeta-analysis of genetic parameter estimates of residual feed intake and of its component traits in cattledry matter intakegenetic correlationfeed efficiencypooled estimatesheritabilitymetabolic weightThe objective of this work was to estimate, by meta-analysis, the heritability (h(2)) and the genetic (r(g)) and phenotypic (r(f)) correlations of residual feed intake (RFI), and of its component traits in beef cattle from 19 breeds or genetic groups. Twenty-two scientific papers published from 1963 to 2011, from eight countries, totaling 52,637 cattle of ages from 28 days up to slaughter, were evaluated. The estimates of RFI, dry matter intake (DMI), average daily gain (ADG) and metabolic weight (BW0.75) were weighted by the inverse of sample variance. The variation between studies of h(2) for each trait was analyzed by weighted least squares. The effects of sex, country and breed were significant for h(2) of RFI, explaining 67% of variation between studies. For DMI, country and breed effects were significant and explained 96% of variation. Pooled estimates of h(2) were: 0.255+/-0.008, 0.278+/-0.012, 0.321+/-0.015, and 0.397+/-0.032 for RFI, DMI, ADG and BW0.75, respectively. Pooled estimates of genetic and phenotypic correlations were low between RFI and ADG and between RFI and BW0.75 (from -0.021+/-0.034 to 0.025+/-0.035), and moderate between RFI and DMI (0.636+/-0.035 and 0.698+/-0.041) and between DMI, ADG and BW0.75 (0.441+/-0.062 to 0.688+/-0.032). The trait RFI has lower heritability estimates than its components.O objetivo deste trabalho foi estimar, por meio de meta-análise, a herdabilidade (h2) e as correlações genética (rg) e fenotípica (rf) do consumo alimentar residual (CAR), e das suas características componentes, em bovinos de 19 raças ou grupamentos genéticos. Foram utilizados 22 trabalhos científicos publicados entre 1963 e 2011, de oito países, o que totalizou 52.637 bovinos com idades que variaram de 28 dias até a idade de abate. As estimativas de CAR, consumo de matéria seca (CMS), ganho médio diário (GMD) e peso metabólico (PV0, 75) foram ponderadas pelo inverso da variância amostral. A variação da h2 de cada característica entre os estudos foi analisada por quadrados mínimos ponderados. Os efeitos de sexo, país e raça foram significativos para h2 de CAR e explicaram 67% da variação entre os estudos. Para CMS, os efeitos de país e raça foram significativos e explicaram 96% da variação. As estimativas combinadas de h2 foram: 0, 255±0, 008, 0, 278±0, 012, 0, 321±0, 015 e 0, 397±0, 032 para CAR, CMS, GMD e PV0, 75, respectivamente. As estimativas combinadas de correlação genética e fenotípica foram baixas entre CAR e GMD e entre CAR e PV0, 75 (de -0, 021±0, 034 a 0, 025±0, 035), e de média magnitude entre CAR e CMS (0, 636±0, 035 a 0, 698±0, 041) e entre CMS, GMD e PV0, 75 (0, 441±0, 062 a 0, 688±0, 032). O CAR apresenta estimativa de herdabilidade menor que a de suas características componentes.Agencia Paulista Tecnol Agronegocios, Inst Zootecnia, BR-14160970 Sertaozinho, SP, BrazilUniv Estadual Paulista, Fac Med Vet & Zootecnia, BR-18618000 Botucatu, SP, BrazilUniv Estadual Paulista, Fac Med Vet & Zootecnia, BR-18618000 Botucatu, SP, BrazilEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)Agência Paulista de Tecnologia dos Agronegócios (APTA)Universidade Estadual Paulista (Unesp)Del Claro, Ana CeciliaZerlotti Mercadante, Maria EugeniaSilva, Josineudson Augusto II Vasconcelos [UNESP]2014-05-20T15:33:15Z2014-05-20T15:33:15Z2012-02-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article302-310application/pdfhttp://dx.doi.org/10.1590/S0100-204X2012000200020Pesquisa Agropecuaria Brasileira. Brasilia Df: Empresa Brasil Pesq Agropec, v. 47, n. 2, p. 302-310, 2012.0100-204Xhttp://hdl.handle.net/11449/41939S0100-204X2012000200020WOS:000303202500020S0100-204X2012000200020.pdfWeb of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporPesquisa Agropecuária Brasileira0.546info:eu-repo/semantics/openAccess2024-09-06T18:54:40Zoai:repositorio.unesp.br:11449/41939Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestrepositoriounesp@unesp.bropendoar:29462024-09-06T18:54:40Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Meta-análise de parâmetros genéticos relacionados ao consumo alimentar residual e a suas características componentes em bovinos Meta-analysis of genetic parameter estimates of residual feed intake and of its component traits in cattle |
title |
Meta-análise de parâmetros genéticos relacionados ao consumo alimentar residual e a suas características componentes em bovinos |
spellingShingle |
Meta-análise de parâmetros genéticos relacionados ao consumo alimentar residual e a suas características componentes em bovinos Del Claro, Ana Cecilia dry matter intake genetic correlation feed efficiency pooled estimates heritability metabolic weight |
title_short |
Meta-análise de parâmetros genéticos relacionados ao consumo alimentar residual e a suas características componentes em bovinos |
title_full |
Meta-análise de parâmetros genéticos relacionados ao consumo alimentar residual e a suas características componentes em bovinos |
title_fullStr |
Meta-análise de parâmetros genéticos relacionados ao consumo alimentar residual e a suas características componentes em bovinos |
title_full_unstemmed |
Meta-análise de parâmetros genéticos relacionados ao consumo alimentar residual e a suas características componentes em bovinos |
title_sort |
Meta-análise de parâmetros genéticos relacionados ao consumo alimentar residual e a suas características componentes em bovinos |
author |
Del Claro, Ana Cecilia |
author_facet |
Del Claro, Ana Cecilia Zerlotti Mercadante, Maria Eugenia Silva, Josineudson Augusto II Vasconcelos [UNESP] |
author_role |
author |
author2 |
Zerlotti Mercadante, Maria Eugenia Silva, Josineudson Augusto II Vasconcelos [UNESP] |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Agência Paulista de Tecnologia dos Agronegócios (APTA) Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Del Claro, Ana Cecilia Zerlotti Mercadante, Maria Eugenia Silva, Josineudson Augusto II Vasconcelos [UNESP] |
dc.subject.por.fl_str_mv |
dry matter intake genetic correlation feed efficiency pooled estimates heritability metabolic weight |
topic |
dry matter intake genetic correlation feed efficiency pooled estimates heritability metabolic weight |
description |
The objective of this work was to estimate, by meta-analysis, the heritability (h(2)) and the genetic (r(g)) and phenotypic (r(f)) correlations of residual feed intake (RFI), and of its component traits in beef cattle from 19 breeds or genetic groups. Twenty-two scientific papers published from 1963 to 2011, from eight countries, totaling 52,637 cattle of ages from 28 days up to slaughter, were evaluated. The estimates of RFI, dry matter intake (DMI), average daily gain (ADG) and metabolic weight (BW0.75) were weighted by the inverse of sample variance. The variation between studies of h(2) for each trait was analyzed by weighted least squares. The effects of sex, country and breed were significant for h(2) of RFI, explaining 67% of variation between studies. For DMI, country and breed effects were significant and explained 96% of variation. Pooled estimates of h(2) were: 0.255+/-0.008, 0.278+/-0.012, 0.321+/-0.015, and 0.397+/-0.032 for RFI, DMI, ADG and BW0.75, respectively. Pooled estimates of genetic and phenotypic correlations were low between RFI and ADG and between RFI and BW0.75 (from -0.021+/-0.034 to 0.025+/-0.035), and moderate between RFI and DMI (0.636+/-0.035 and 0.698+/-0.041) and between DMI, ADG and BW0.75 (0.441+/-0.062 to 0.688+/-0.032). The trait RFI has lower heritability estimates than its components. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-02-01 2014-05-20T15:33:15Z 2014-05-20T15:33:15Z |
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/10.1590/S0100-204X2012000200020 Pesquisa Agropecuaria Brasileira. Brasilia Df: Empresa Brasil Pesq Agropec, v. 47, n. 2, p. 302-310, 2012. 0100-204X http://hdl.handle.net/11449/41939 S0100-204X2012000200020 WOS:000303202500020 S0100-204X2012000200020.pdf |
url |
http://dx.doi.org/10.1590/S0100-204X2012000200020 http://hdl.handle.net/11449/41939 |
identifier_str_mv |
Pesquisa Agropecuaria Brasileira. Brasilia Df: Empresa Brasil Pesq Agropec, v. 47, n. 2, p. 302-310, 2012. 0100-204X S0100-204X2012000200020 WOS:000303202500020 S0100-204X2012000200020.pdf |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
Pesquisa Agropecuária Brasileira 0.546 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
302-310 application/pdf |
dc.publisher.none.fl_str_mv |
Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA) |
publisher.none.fl_str_mv |
Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA) |
dc.source.none.fl_str_mv |
Web of Science 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 |
repositoriounesp@unesp.br |
_version_ |
1810021314616885248 |