Endogamy in water buffaloes of Murrah dairy breed raised in Brazil

Detalhes bibliográficos
Autor(a) principal: Malhado, C. H.M.
Data de Publicação: 2010
Outros Autores: Ramos, A. A. [UNESP], Carneiro, P. L.S., Affonso, P. R.M., Souza, J. C.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://hdl.handle.net/11449/220197
Resumo: The goal of the present study was to analyze the endogamy of Murrah buffaloes over 5 generations in 10 Brazilian herds. Pedigree information of 5,062 animals born from 1972 on were used. The mean endogamy coefficient and the percentage of endogamic animals increased from 0.33 and 1.31% in the second generation to 2.58 and 50.17% in the sixth generation, respectively. The expected endogamy increases caused by the unbalanced contribution of founders was equal to 0.48% and the founder effective number (fe) was 103. The genetic contribution of 5, 10 and 17 most influent ancestors (founders or not) explained, in the same order, 29.5, 41.13 and 50% of the genetic variability in the whole population. The mean endogamy coefficient increased over generations, what indicates that matings among closely related individuals have been allowed. Management and breeding strategies should be implemented to reduce the endogamy in the analyzed herds.
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spelling Endogamy in water buffaloes of Murrah dairy breed raised in BrazilGenetic variabilityInbreedingPedigreeThe goal of the present study was to analyze the endogamy of Murrah buffaloes over 5 generations in 10 Brazilian herds. Pedigree information of 5,062 animals born from 1972 on were used. The mean endogamy coefficient and the percentage of endogamic animals increased from 0.33 and 1.31% in the second generation to 2.58 and 50.17% in the sixth generation, respectively. The expected endogamy increases caused by the unbalanced contribution of founders was equal to 0.48% and the founder effective number (fe) was 103. The genetic contribution of 5, 10 and 17 most influent ancestors (founders or not) explained, in the same order, 29.5, 41.13 and 50% of the genetic variability in the whole population. The mean endogamy coefficient increased over generations, what indicates that matings among closely related individuals have been allowed. Management and breeding strategies should be implemented to reduce the endogamy in the analyzed herds.Universidade Estadual do Sudoeste da Bahia, Av: José Moreira Sobrinho, S/N, Jequié, CEP: 45200-000Universidade Estadual Paulista, Botucatu, SPUniversidade Federal do Mato Grosso do Sul, Aquidauana, MSUniversidade Estadual Paulista, Botucatu, SPUniversidade Estadual do Sudoeste da BahiaUniversidade Estadual Paulista (UNESP)Universidade Federal do Mato Grosso do SulMalhado, C. H.M.Ramos, A. A. [UNESP]Carneiro, P. L.S.Affonso, P. R.M.Souza, J. C.2022-04-28T19:00:04Z2022-04-28T19:00:04Z2010-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article1084-1085Revista Veterinaria, v. 21, n. SUPPL.1, p. 1084-1085, 2010.1669-68401668-4834http://hdl.handle.net/11449/2201972-s2.0-84904732795Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengRevista Veterinariainfo:eu-repo/semantics/openAccess2022-04-28T19:00:04Zoai:repositorio.unesp.br:11449/220197Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T15:22:38.887926Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Endogamy in water buffaloes of Murrah dairy breed raised in Brazil
title Endogamy in water buffaloes of Murrah dairy breed raised in Brazil
spellingShingle Endogamy in water buffaloes of Murrah dairy breed raised in Brazil
Malhado, C. H.M.
Genetic variability
Inbreeding
Pedigree
title_short Endogamy in water buffaloes of Murrah dairy breed raised in Brazil
title_full Endogamy in water buffaloes of Murrah dairy breed raised in Brazil
title_fullStr Endogamy in water buffaloes of Murrah dairy breed raised in Brazil
title_full_unstemmed Endogamy in water buffaloes of Murrah dairy breed raised in Brazil
title_sort Endogamy in water buffaloes of Murrah dairy breed raised in Brazil
author Malhado, C. H.M.
author_facet Malhado, C. H.M.
Ramos, A. A. [UNESP]
Carneiro, P. L.S.
Affonso, P. R.M.
Souza, J. C.
author_role author
author2 Ramos, A. A. [UNESP]
Carneiro, P. L.S.
Affonso, P. R.M.
Souza, J. C.
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual do Sudoeste da Bahia
Universidade Estadual Paulista (UNESP)
Universidade Federal do Mato Grosso do Sul
dc.contributor.author.fl_str_mv Malhado, C. H.M.
Ramos, A. A. [UNESP]
Carneiro, P. L.S.
Affonso, P. R.M.
Souza, J. C.
dc.subject.por.fl_str_mv Genetic variability
Inbreeding
Pedigree
topic Genetic variability
Inbreeding
Pedigree
description The goal of the present study was to analyze the endogamy of Murrah buffaloes over 5 generations in 10 Brazilian herds. Pedigree information of 5,062 animals born from 1972 on were used. The mean endogamy coefficient and the percentage of endogamic animals increased from 0.33 and 1.31% in the second generation to 2.58 and 50.17% in the sixth generation, respectively. The expected endogamy increases caused by the unbalanced contribution of founders was equal to 0.48% and the founder effective number (fe) was 103. The genetic contribution of 5, 10 and 17 most influent ancestors (founders or not) explained, in the same order, 29.5, 41.13 and 50% of the genetic variability in the whole population. The mean endogamy coefficient increased over generations, what indicates that matings among closely related individuals have been allowed. Management and breeding strategies should be implemented to reduce the endogamy in the analyzed herds.
publishDate 2010
dc.date.none.fl_str_mv 2010-01-01
2022-04-28T19:00:04Z
2022-04-28T19:00:04Z
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 Revista Veterinaria, v. 21, n. SUPPL.1, p. 1084-1085, 2010.
1669-6840
1668-4834
http://hdl.handle.net/11449/220197
2-s2.0-84904732795
identifier_str_mv Revista Veterinaria, v. 21, n. SUPPL.1, p. 1084-1085, 2010.
1669-6840
1668-4834
2-s2.0-84904732795
url http://hdl.handle.net/11449/220197
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Revista Veterinaria
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 1084-1085
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_ 1808128504028463104

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