Reproductive deficiency in bulls from synthetic breeds according to the type of crossbreed and the morphology of the Y chromosome
Autor(a) principal: | |
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Data de Publicação: | 2005 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/19961 |
Resumo: | We used 550 Braford and 214 Brangus-lbagé bulls to study the association between Y chromosome morphology and the evaluation of breeding-soundness, karyotyping and breeding records were used to assess Y chromosome morphology. In general, no direct association was detected between the individual type of Y chromosome and reproductive fitness as previously estimated through breeding soundness examination. The type of breeding strategy used to form the synthetic breeds was also analyzed. The Braford breed is about 3/8 Zebu (Bos taurus indicus) and 5/8 Hereford (Bos taurus taurus) but when the breeding strategy used 1/4 Zebu animals to produce Braford bulls which were 3/8 Zebu a greater percentage of the bulls had to be culled due to reproductive problems. Our study shows that certain interactions between genotypes can be detrimental to the reproductive efficiency of 3/8 Zebu animals and that breeding strategies avoiding or favoring certain genotypes can be used to reduce the percentage of bulls from synthetic breeds that are culled due to problems with semen quality. |
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Mesquita, Marilise OliveiraMoraes, José Carlos Ferrugem deJaume, Carlos M.Edelweiss, Maria Isabel AlbanoRosado, Adriano2010-04-16T09:12:24Z20051415-4757http://hdl.handle.net/10183/19961000477954We used 550 Braford and 214 Brangus-lbagé bulls to study the association between Y chromosome morphology and the evaluation of breeding-soundness, karyotyping and breeding records were used to assess Y chromosome morphology. In general, no direct association was detected between the individual type of Y chromosome and reproductive fitness as previously estimated through breeding soundness examination. The type of breeding strategy used to form the synthetic breeds was also analyzed. The Braford breed is about 3/8 Zebu (Bos taurus indicus) and 5/8 Hereford (Bos taurus taurus) but when the breeding strategy used 1/4 Zebu animals to produce Braford bulls which were 3/8 Zebu a greater percentage of the bulls had to be culled due to reproductive problems. Our study shows that certain interactions between genotypes can be detrimental to the reproductive efficiency of 3/8 Zebu animals and that breeding strategies avoiding or favoring certain genotypes can be used to reduce the percentage of bulls from synthetic breeds that are culled due to problems with semen quality.application/pdfengGenetics and molecular biology. Ribeirão Preto. Vol. 28, no. 2 (June 2005), p. 225-229SêmenCromossomo YBovinosReproduçãoModelos animaisBullsSemen qualityY chromosomeSynthetic breeds of cattleReproductive deficiency in bulls from synthetic breeds according to the type of crossbreed and the morphology of the Y chromosomeinfo: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:UFRGSORIGINAL000477954.pdf000477954.pdfTexto completo (inglês)application/pdf65714http://www.lume.ufrgs.br/bitstream/10183/19961/1/000477954.pdf1fdce21b9216df1ffcaec2e380576882MD51TEXT000477954.pdf.txt000477954.pdf.txtExtracted Texttext/plain24793http://www.lume.ufrgs.br/bitstream/10183/19961/2/000477954.pdf.txt8096e7c35dff5ae85a7b7864e0ad0df7MD52THUMBNAIL000477954.pdf.jpg000477954.pdf.jpgGenerated Thumbnailimage/jpeg1641http://www.lume.ufrgs.br/bitstream/10183/19961/3/000477954.pdf.jpg27537ad4dcd6afeac5611db5cd6d4123MD5310183/199612018-10-08 09:11:59.63oai:www.lume.ufrgs.br:10183/19961Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2018-10-08T12:11:59Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Reproductive deficiency in bulls from synthetic breeds according to the type of crossbreed and the morphology of the Y chromosome |
title |
Reproductive deficiency in bulls from synthetic breeds according to the type of crossbreed and the morphology of the Y chromosome |
spellingShingle |
Reproductive deficiency in bulls from synthetic breeds according to the type of crossbreed and the morphology of the Y chromosome Mesquita, Marilise Oliveira Sêmen Cromossomo Y Bovinos Reprodução Modelos animais Bulls Semen quality Y chromosome Synthetic breeds of cattle |
title_short |
Reproductive deficiency in bulls from synthetic breeds according to the type of crossbreed and the morphology of the Y chromosome |
title_full |
Reproductive deficiency in bulls from synthetic breeds according to the type of crossbreed and the morphology of the Y chromosome |
title_fullStr |
Reproductive deficiency in bulls from synthetic breeds according to the type of crossbreed and the morphology of the Y chromosome |
title_full_unstemmed |
Reproductive deficiency in bulls from synthetic breeds according to the type of crossbreed and the morphology of the Y chromosome |
title_sort |
Reproductive deficiency in bulls from synthetic breeds according to the type of crossbreed and the morphology of the Y chromosome |
author |
Mesquita, Marilise Oliveira |
author_facet |
Mesquita, Marilise Oliveira Moraes, José Carlos Ferrugem de Jaume, Carlos M. Edelweiss, Maria Isabel Albano Rosado, Adriano |
author_role |
author |
author2 |
Moraes, José Carlos Ferrugem de Jaume, Carlos M. Edelweiss, Maria Isabel Albano Rosado, Adriano |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Mesquita, Marilise Oliveira Moraes, José Carlos Ferrugem de Jaume, Carlos M. Edelweiss, Maria Isabel Albano Rosado, Adriano |
dc.subject.por.fl_str_mv |
Sêmen Cromossomo Y Bovinos Reprodução Modelos animais |
topic |
Sêmen Cromossomo Y Bovinos Reprodução Modelos animais Bulls Semen quality Y chromosome Synthetic breeds of cattle |
dc.subject.eng.fl_str_mv |
Bulls Semen quality Y chromosome Synthetic breeds of cattle |
description |
We used 550 Braford and 214 Brangus-lbagé bulls to study the association between Y chromosome morphology and the evaluation of breeding-soundness, karyotyping and breeding records were used to assess Y chromosome morphology. In general, no direct association was detected between the individual type of Y chromosome and reproductive fitness as previously estimated through breeding soundness examination. The type of breeding strategy used to form the synthetic breeds was also analyzed. The Braford breed is about 3/8 Zebu (Bos taurus indicus) and 5/8 Hereford (Bos taurus taurus) but when the breeding strategy used 1/4 Zebu animals to produce Braford bulls which were 3/8 Zebu a greater percentage of the bulls had to be culled due to reproductive problems. Our study shows that certain interactions between genotypes can be detrimental to the reproductive efficiency of 3/8 Zebu animals and that breeding strategies avoiding or favoring certain genotypes can be used to reduce the percentage of bulls from synthetic breeds that are culled due to problems with semen quality. |
publishDate |
2005 |
dc.date.issued.fl_str_mv |
2005 |
dc.date.accessioned.fl_str_mv |
2010-04-16T09:12:24Z |
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/10183/19961 |
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1415-4757 |
dc.identifier.nrb.pt_BR.fl_str_mv |
000477954 |
identifier_str_mv |
1415-4757 000477954 |
url |
http://hdl.handle.net/10183/19961 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Genetics and molecular biology. Ribeirão Preto. Vol. 28, no. 2 (June 2005), p. 225-229 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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application/pdf |
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reponame:Repositório Institucional da UFRGS instname:Universidade Federal do Rio Grande do Sul (UFRGS) instacron:UFRGS |
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Repositório Institucional da UFRGS |
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