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Registro Completo |
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
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Data corrente: |
28/03/2011 |
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Data da última atualização: |
28/07/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ESPASANDIN, A. C.; URIOSTE, J. I.; CAMPOS, L. T.; ALENCAR, M. M. de. |
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Afiliação: |
ANA CAROLINA ESPASANDIN, FACULTAD DE AGRONOMIA- EEMAC-UDELAR URUGUAY; JORGE IGNACIO URIOSTE, FACULTAD DE AGRONOMIA- EEMAC-UDELAR URUGUAY; LEONARDO TALAVERA CAMPOS, UNIVERSIDADE FEDERAL DE PELOTAS; MAURICIO MELLO DE ALENCAR, CPPSE. |
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Título: |
Genotype × country interaction for weaning weight in the Angus populations of Brazil and Uruguay. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
Revista Brasileira de Zootecnia, v. 40, n. 3, p. 568-574, mar. 2011. |
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DOI: |
https://doi.org/10.1590/S1516-35982011000300014 |
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Idioma: |
Inglês |
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Conteúdo: |
It was analyzed the existence of genotype × environment interaction for weaning weight in populations of Angus from Brazil and Uruguay by using records of 73,205 animals (10,257 from Uruguay and 62,948 from Brazil) belonging to 33 and 161 farms and 13 and 34 regions in Uruguay and Brazil, respectively. It was used the one- and two-trait animal model analyses considering weight at weaning of each country as different characters. Coefficients of direct and maternal additive-genetic correlation estimated by two statistical models (including or not bull × country effect) Models included the fixed effects of contemporary group (herd-year and month of birth), sex of the calf, the covariates age of dam at calving (years) and age of calf at weaning (days), and the random effects genetic-additive maternal and direct, maternal permanent environment and residual. Herdabilidades (of direct effect) were similar in both countries and with moderate magnitude (0.35 and 0.15, respectively). Coeficients of correlation among maternal and direct genetic effects between Brazil and Uruguay were 0.77 and 0.13, respectively, and comparison among models (with and without bull × country effect) showed significant differences. Correlations among classifications (ranking of genetic values) of bulls with progenie in both countries ranged from 0.35 to 0.41 for estimations in one- and two-trait models, respectively. The results suggest the existence of genotype × environment interaction for weight at weaning of Angus populations between Brazil and Uruguay. There is a need of considering interaction in further international genetic evaluations of the breed. MenosIt was analyzed the existence of genotype × environment interaction for weaning weight in populations of Angus from Brazil and Uruguay by using records of 73,205 animals (10,257 from Uruguay and 62,948 from Brazil) belonging to 33 and 161 farms and 13 and 34 regions in Uruguay and Brazil, respectively. It was used the one- and two-trait animal model analyses considering weight at weaning of each country as different characters. Coefficients of direct and maternal additive-genetic correlation estimated by two statistical models (including or not bull × country effect) Models included the fixed effects of contemporary group (herd-year and month of birth), sex of the calf, the covariates age of dam at calving (years) and age of calf at weaning (days), and the random effects genetic-additive maternal and direct, maternal permanent environment and residual. Herdabilidades (of direct effect) were similar in both countries and with moderate magnitude (0.35 and 0.15, respectively). Coeficients of correlation among maternal and direct genetic effects between Brazil and Uruguay were 0.77 and 0.13, respectively, and comparison among models (with and without bull × country effect) showed significant differences. Correlations among classifications (ranking of genetic values) of bulls with progenie in both countries ranged from 0.35 to 0.41 for estimations in one- and two-trait models, respectively. The results suggest the existence of genotype × environment interaction for weight at wean... Mostrar Tudo |
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Palavras-Chave: |
Correlação genética; Genotype × environment interaction; Interação; International evaluation. |
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Thesagro: |
Gado de Corte; Genótipo. |
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Thesaurus Nal: |
beef cattle; genetic correlation. |
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Categoria do assunto: |
G Melhoramento Genético |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/31223/1/1130.pdf
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Marc: |
LEADER 02518naa a2200265 a 4500
001 1883143
005 2022-07-28
008 2011 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1590/S1516-35982011000300014$2DOI
100 1 $aESPASANDIN, A. C.
245 $aGenotype × country interaction for weaning weight in the Angus populations of Brazil and Uruguay.$h[electronic resource]
260 $c2011
520 $aIt was analyzed the existence of genotype × environment interaction for weaning weight in populations of Angus from Brazil and Uruguay by using records of 73,205 animals (10,257 from Uruguay and 62,948 from Brazil) belonging to 33 and 161 farms and 13 and 34 regions in Uruguay and Brazil, respectively. It was used the one- and two-trait animal model analyses considering weight at weaning of each country as different characters. Coefficients of direct and maternal additive-genetic correlation estimated by two statistical models (including or not bull × country effect) Models included the fixed effects of contemporary group (herd-year and month of birth), sex of the calf, the covariates age of dam at calving (years) and age of calf at weaning (days), and the random effects genetic-additive maternal and direct, maternal permanent environment and residual. Herdabilidades (of direct effect) were similar in both countries and with moderate magnitude (0.35 and 0.15, respectively). Coeficients of correlation among maternal and direct genetic effects between Brazil and Uruguay were 0.77 and 0.13, respectively, and comparison among models (with and without bull × country effect) showed significant differences. Correlations among classifications (ranking of genetic values) of bulls with progenie in both countries ranged from 0.35 to 0.41 for estimations in one- and two-trait models, respectively. The results suggest the existence of genotype × environment interaction for weight at weaning of Angus populations between Brazil and Uruguay. There is a need of considering interaction in further international genetic evaluations of the breed.
650 $abeef cattle
650 $agenetic correlation
650 $aGado de Corte
650 $aGenótipo
653 $aCorrelação genética
653 $aGenotype × environment interaction
653 $aInteração
653 $aInternational evaluation
700 1 $aURIOSTE, J. I.
700 1 $aCAMPOS, L. T.
700 1 $aALENCAR, M. M. de
773 $tRevista Brasileira de Zootecnia$gv. 40, n. 3, p. 568-574, mar. 2011.
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Embrapa Pecuária Sudeste (CPPSE) |
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