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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
01/02/2017 |
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Data da última atualização: |
23/01/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
COLE, J. B.; SILVA, M. V. G. B. |
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Afiliação: |
John Bruce Cole, Animal Genomics and Improvement Laboratory, Beltsville, Maryland, USA; MARCOS VINICIUS GUALBERTO B SILVA, CNPGL. |
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Título: |
Genomic selection in multi-breed dairy cattle populations. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Revista Brasileira de Zootecnia, v. 45, n. 4, p. 195-202, 2016. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract Genomic selection has been a valuable tool for increasing the rate of genetic improvement in purebred dairy cattle populations. However, there also are many large populations of crossbred dairy cattle in the world, and multi-breed genomic evaluations may be a valuable tool for improving rates of genetic gain in those populations. Multi-breed models are an extension of single-breed genomic models in which a genomic relationship matrix is used to account for the breed origin of alleles in the population, as well as allele frequency differences between breeds. Most studies have found little benefit from multi-breed evaluations for pure breeds that have large reference populations. However, breeds with small reference populations may benefit from inclusion in a multi-breed evaluation without adversely affecting evaluations for purebred performance. Most research has been conducted in taurine breeds, so additional research is needed to determine the value of multi-breed reference populations for composite and synthetic breeds that include both indicine and taurine cattle adapted to tropical climates. |
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Palavras-Chave: |
Crossbred cattle; Crossbreeding; Genomic evaluation; Multi-breed populations. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/154551/1/Cnpgl-2016-RevBrasZoot-Genomic.pdf
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Marc: |
LEADER 01660naa a2200181 a 4500
001 2062494
005 2023-01-23
008 2016 bl uuuu u00u1 u #d
100 1 $aCOLE, J. B.
245 $aGenomic selection in multi-breed dairy cattle populations.$h[electronic resource]
260 $c2016
520 $aAbstract Genomic selection has been a valuable tool for increasing the rate of genetic improvement in purebred dairy cattle populations. However, there also are many large populations of crossbred dairy cattle in the world, and multi-breed genomic evaluations may be a valuable tool for improving rates of genetic gain in those populations. Multi-breed models are an extension of single-breed genomic models in which a genomic relationship matrix is used to account for the breed origin of alleles in the population, as well as allele frequency differences between breeds. Most studies have found little benefit from multi-breed evaluations for pure breeds that have large reference populations. However, breeds with small reference populations may benefit from inclusion in a multi-breed evaluation without adversely affecting evaluations for purebred performance. Most research has been conducted in taurine breeds, so additional research is needed to determine the value of multi-breed reference populations for composite and synthetic breeds that include both indicine and taurine cattle adapted to tropical climates.
653 $aCrossbred cattle
653 $aCrossbreeding
653 $aGenomic evaluation
653 $aMulti-breed populations
700 1 $aSILVA, M. V. G. B.
773 $tRevista Brasileira de Zootecnia$gv. 45, n. 4, p. 195-202, 2016.
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Embrapa Gado de Leite (CNPGL) |
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