Reproductive success or failure in four breed groups of beef bulls

Detalhes bibliográficos
Autor(a) principal: Menegassi,Sílvio Renato Oliveira
Data de Publicação: 2015
Outros Autores: Barcellos,Júlio Otávio Jardim, Peripolli,Vanessa, Dias,Eduardo Antunes, Costa Junior,João Batista Gonçalves, Vieira,Maitê de Moraes, Moojen,Fernanda Gomes
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista Brasileira de Zootecnia (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982015000700240
Resumo: The objective of this study was to determine the main causes of failure in bull breeding using a soundness evaluation in Rio Grande do Sul State/Brazil. We evaluated 19,836 bulls from 15 different breeds with ages ranging from two to eight years. The failures of bulls in each step were analyzed by logistic regression. The binary logistic regression was applied because the response variable had only two responses: Success (1) and Failure (0). Older bulls are more likely to be rejected than are younger bulls, regardless of their genetic group. Depending on the step of the assessment, one or another group is rejected. All steps of bull breeding soundness evaluation (BBSE) are important, with special attention to the failures of the behavioral evaluation (libido and physical ability). A BBSE performed before the breeding season reduces the risk of sub-fertile bulls in the herd.
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spelling Reproductive success or failure in four breed groups of beef bullsBBSEfertilitymounting abilityscrotal circumferenceThe objective of this study was to determine the main causes of failure in bull breeding using a soundness evaluation in Rio Grande do Sul State/Brazil. We evaluated 19,836 bulls from 15 different breeds with ages ranging from two to eight years. The failures of bulls in each step were analyzed by logistic regression. The binary logistic regression was applied because the response variable had only two responses: Success (1) and Failure (0). Older bulls are more likely to be rejected than are younger bulls, regardless of their genetic group. Depending on the step of the assessment, one or another group is rejected. All steps of bull breeding soundness evaluation (BBSE) are important, with special attention to the failures of the behavioral evaluation (libido and physical ability). A BBSE performed before the breeding season reduces the risk of sub-fertile bulls in the herd.Sociedade Brasileira de Zootecnia2015-07-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982015000700240Revista Brasileira de Zootecnia v.44 n.7 2015reponame:Revista Brasileira de Zootecnia (Online)instname:Sociedade Brasileira de Zootecnia (SBZ)instacron:SBZ10.1590/S1806-92902015000700002info:eu-repo/semantics/openAccessMenegassi,Sílvio Renato OliveiraBarcellos,Júlio Otávio JardimPeripolli,VanessaDias,Eduardo AntunesCosta Junior,João Batista GonçalvesVieira,Maitê de MoraesMoojen,Fernanda Gomeseng2015-07-24T00:00:00Zoai:scielo:S1516-35982015000700240Revistahttps://www.rbz.org.br/pt-br/https://old.scielo.br/oai/scielo-oai.php||bz@sbz.org.br|| secretariarbz@sbz.org.br1806-92901516-3598opendoar:2015-07-24T00:00Revista Brasileira de Zootecnia (Online) - Sociedade Brasileira de Zootecnia (SBZ)false
dc.title.none.fl_str_mv Reproductive success or failure in four breed groups of beef bulls
title Reproductive success or failure in four breed groups of beef bulls
spellingShingle Reproductive success or failure in four breed groups of beef bulls
Menegassi,Sílvio Renato Oliveira
BBSE
fertility
mounting ability
scrotal circumference
title_short Reproductive success or failure in four breed groups of beef bulls
title_full Reproductive success or failure in four breed groups of beef bulls
title_fullStr Reproductive success or failure in four breed groups of beef bulls
title_full_unstemmed Reproductive success or failure in four breed groups of beef bulls
title_sort Reproductive success or failure in four breed groups of beef bulls
author Menegassi,Sílvio Renato Oliveira
author_facet Menegassi,Sílvio Renato Oliveira
Barcellos,Júlio Otávio Jardim
Peripolli,Vanessa
Dias,Eduardo Antunes
Costa Junior,João Batista Gonçalves
Vieira,Maitê de Moraes
Moojen,Fernanda Gomes
author_role author
author2 Barcellos,Júlio Otávio Jardim
Peripolli,Vanessa
Dias,Eduardo Antunes
Costa Junior,João Batista Gonçalves
Vieira,Maitê de Moraes
Moojen,Fernanda Gomes
author2_role author
author
author
author
author
author
dc.contributor.author.fl_str_mv Menegassi,Sílvio Renato Oliveira
Barcellos,Júlio Otávio Jardim
Peripolli,Vanessa
Dias,Eduardo Antunes
Costa Junior,João Batista Gonçalves
Vieira,Maitê de Moraes
Moojen,Fernanda Gomes
dc.subject.por.fl_str_mv BBSE
fertility
mounting ability
scrotal circumference
topic BBSE
fertility
mounting ability
scrotal circumference
description The objective of this study was to determine the main causes of failure in bull breeding using a soundness evaluation in Rio Grande do Sul State/Brazil. We evaluated 19,836 bulls from 15 different breeds with ages ranging from two to eight years. The failures of bulls in each step were analyzed by logistic regression. The binary logistic regression was applied because the response variable had only two responses: Success (1) and Failure (0). Older bulls are more likely to be rejected than are younger bulls, regardless of their genetic group. Depending on the step of the assessment, one or another group is rejected. All steps of bull breeding soundness evaluation (BBSE) are important, with special attention to the failures of the behavioral evaluation (libido and physical ability). A BBSE performed before the breeding season reduces the risk of sub-fertile bulls in the herd.
publishDate 2015
dc.date.none.fl_str_mv 2015-07-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
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dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982015000700240
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982015000700240
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1806-92902015000700002
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
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dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Zootecnia
publisher.none.fl_str_mv Sociedade Brasileira de Zootecnia
dc.source.none.fl_str_mv Revista Brasileira de Zootecnia v.44 n.7 2015
reponame:Revista Brasileira de Zootecnia (Online)
instname:Sociedade Brasileira de Zootecnia (SBZ)
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reponame_str Revista Brasileira de Zootecnia (Online)
collection Revista Brasileira de Zootecnia (Online)
repository.name.fl_str_mv Revista Brasileira de Zootecnia (Online) - Sociedade Brasileira de Zootecnia (SBZ)
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