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Registros recuperados: 4
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Efeitos da eliminação das lactações curtas e do ajuste da produção de leite pela duração da lactação sobre a comparação do desempenho produtivo de vacas de seis grupos genéticos Holandês x Gir. Repositório Alice
FACO, O.; BOZZI, R.; MARTINS FILHO, R.; LOBO, R. N. B.; MALHADO, C. H. M..
2004
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Bovino de corte; Girolando; Zebu; Melhoramento genético animal; Cruzamento; Parâmetro genético; Tendência genética; Crescimento; Brasil.
Ano: 2004 URL: http://www.alice.cnptia.embrapa.br/handle/doc/534252
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Genetic improvement and population structure of the Nelore breed in Northern Brazi. Repositório Alice
MALHADO, C. H. M.; CARNEIRO, P. L. S.; MALHADO, A. C. M.; MARTINS FILHO, R.; BOZZI, R.; LADLE, R. J..
Abstract ? The objective of this work was to evaluate the population structure and the genetic and phenotypic progress of Nelore cattle in Northern Brazil. Pedigree information concerning animals born between 1942 and 2006 were analyzed. Population structure was performed using the Endog program. average relatedness coefficients were low: 0.2 and 0.13%, respectively. However,The effective number of founders was 370 and the genetic contribution of 10, 50 and 448 most influent ancestors explained 13.2, 28 and 50% of the genetic variability in the population, respectively. The genetic variability for growth traits and population structure demonstrates high probability of increasing productivity through selective breeding. Moreover, management strategies to...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Effective population size; Genetic parameters; Genetic trends; Inbreeding; Pedigree analysis; Bos taurus indicus.
Ano: 2010 URL: http://www.alice.cnptia.embrapa.br/handle/doc/877575
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Genetic improvement and population structure of the Nelore breed in Northern Brazil. Repositório Alice
MALHADO, C. H. M.; CARNEIRO, P. L. S.; MALHADO, A. C. M.; MARTINS FILHO, R.; BOZZI, R.; LADLE, R. J..
Abstract ? The objective of this work was to evaluate the population structure and the genetic and phenotypic progress of Nelore cattle in Northern Brazil. Pedigree information concerning animals born between 1942 and 2006 were analyzed. Population structure was performed using the Endog program. average relatedness coefficients were low: 0.2 and 0.13%, respectively. However,The effective number of founders was 370 and the genetic contribution of 10, 50 and 448 most influent ancestors explained 13.2, 28 and 50% of the genetic variability in the population, respectively. The genetic variability for growth traits and population structure demonstrates high probability of increasing productivity through selective breeding. Moreover, management strategies to...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Bos taurus indicus; Effective population size; Genetic parameters; Genetic trends; Pedigree analysis; Inbreeding.
Ano: 2010 URL: http://www.alice.cnptia.embrapa.br/handle/doc/873351
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Genetic variability in Mediterranean buffalos evaluated by pedigree analysis. Repositório Alice
TEIXEIRA NETO, M. R.; CRUZ, J. F. da; RAMOS, A. A.; CARNEIRO, P. L. S.; AZEVEDO, D. M. M. R.; BOZZI, R.; MALHADO, C. H. M..
The objective of this research was to study the population genetic structure of four herds of Mediterranean buffaloes in Brazil. It was used pedigree data from 6,588 buffaloes of Mediterranean breed born from 1980 to 2002. Of the total number of animals studied, 60.5, 15.3 and 2.1% had a pedigree in the first, second and third ascendancy, respectively. The effective number of herds that provided breeding males was 1.60 for parents, 1.16 for grandparents and 1.00 for greatgrandparents. There were 923 founder animals and only 71 effective founders. The effective number of ancestors explaining the genetic variability of the population was 71 and only 30 ancestors accounted for 50% of the genetic variability of the population. The average relatedness...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Bubalus bubalis; Endogamia; Estrutura genética populacional; Fundadores; Ancestrais.
Ano: 2012 URL: http://www.alice.cnptia.embrapa.br/handle/doc/950105
Registros recuperados: 4
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