Reproductive success or failure in four breed groups of beef bulls

Detalhes bibliográficos
Autor(a) principal: Menegassi, Silvio Renato Oliveira
Data de Publicação: 2015
Outros Autores: Barcellos, Julio Otavio 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: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/144297
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.
id UFRGS-2_0ccdcc4045c43ee7c928b90c51ff0eb9
oai_identifier_str oai:www.lume.ufrgs.br:10183/144297
network_acronym_str UFRGS-2
network_name_str Repositório Institucional da UFRGS
repository_id_str
spelling Menegassi, Silvio Renato OliveiraBarcellos, Julio Otavio JardimPeripolli, VanessaDias, Eduardo AntunesCosta Junior, João Batista GonçalvesVieira, Maitê de MoraesMoojen, Fernanda Gomes2016-08-09T02:14:58Z20151516-3598http://hdl.handle.net/10183/144297000983726The 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.application/pdfengRevista brasileira de zootecnia= Brazilian journal of animal science [recurso eletrônico]. Viçosa, MG. Vol. 44, n. 7 (jul. 2015), p. 240-247Melhoramento genetico animalReprodução animalFertilidadeTouroBBSEFertilityMounting abilityScrotal circumferenceReproductive success or failure in four breed groups of beef bullsinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/otherinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSORIGINAL000983726.pdf000983726.pdfTexto completo (inglês)application/pdf889758http://www.lume.ufrgs.br/bitstream/10183/144297/1/000983726.pdfe1b5cbc778b979b4dd082f321e447d37MD51TEXT000983726.pdf.txt000983726.pdf.txtExtracted Texttext/plain34327http://www.lume.ufrgs.br/bitstream/10183/144297/2/000983726.pdf.txt855abb063f48de249853042c9ed76212MD52THUMBNAIL000983726.pdf.jpg000983726.pdf.jpgGenerated Thumbnailimage/jpeg2261http://www.lume.ufrgs.br/bitstream/10183/144297/3/000983726.pdf.jpg01aae83f0d6c8d472259ebc876808da6MD5310183/1442972018-10-29 07:47:46.085oai:www.lume.ufrgs.br:10183/144297Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2018-10-29T10:47:46Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.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, Silvio Renato Oliveira
Melhoramento genetico animal
Reprodução animal
Fertilidade
Touro
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, Silvio Renato Oliveira
author_facet Menegassi, Silvio Renato Oliveira
Barcellos, Julio Otavio Jardim
Peripolli, Vanessa
Dias, Eduardo Antunes
Costa Junior, João Batista Gonçalves
Vieira, Maitê de Moraes
Moojen, Fernanda Gomes
author_role author
author2 Barcellos, Julio Otavio 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, Silvio Renato Oliveira
Barcellos, Julio Otavio Jardim
Peripolli, Vanessa
Dias, Eduardo Antunes
Costa Junior, João Batista Gonçalves
Vieira, Maitê de Moraes
Moojen, Fernanda Gomes
dc.subject.por.fl_str_mv Melhoramento genetico animal
Reprodução animal
Fertilidade
Touro
topic Melhoramento genetico animal
Reprodução animal
Fertilidade
Touro
BBSE
Fertility
Mounting ability
Scrotal circumference
dc.subject.eng.fl_str_mv 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.issued.fl_str_mv 2015
dc.date.accessioned.fl_str_mv 2016-08-09T02:14:58Z
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/other
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10183/144297
dc.identifier.issn.pt_BR.fl_str_mv 1516-3598
dc.identifier.nrb.pt_BR.fl_str_mv 000983726
identifier_str_mv 1516-3598
000983726
url http://hdl.handle.net/10183/144297
dc.language.iso.fl_str_mv eng
language eng
dc.relation.ispartof.pt_BR.fl_str_mv Revista brasileira de zootecnia= Brazilian journal of animal science [recurso eletrônico]. Viçosa, MG. Vol. 44, n. 7 (jul. 2015), p. 240-247
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFRGS
instname:Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
instname_str Universidade Federal do Rio Grande do Sul (UFRGS)
instacron_str UFRGS
institution UFRGS
reponame_str Repositório Institucional da UFRGS
collection Repositório Institucional da UFRGS
bitstream.url.fl_str_mv http://www.lume.ufrgs.br/bitstream/10183/144297/1/000983726.pdf
http://www.lume.ufrgs.br/bitstream/10183/144297/2/000983726.pdf.txt
http://www.lume.ufrgs.br/bitstream/10183/144297/3/000983726.pdf.jpg
bitstream.checksum.fl_str_mv e1b5cbc778b979b4dd082f321e447d37
855abb063f48de249853042c9ed76212
01aae83f0d6c8d472259ebc876808da6
bitstream.checksumAlgorithm.fl_str_mv MD5
MD5
MD5
repository.name.fl_str_mv Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)
repository.mail.fl_str_mv
_version_ 1801224905846423552