Production indices for dual purpose cattle in central Brazil
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/98423 |
Resumo: | This study examined the effects of crossbreeding low genetic potential cows of Bos indicus origin characterized by Gyr crossed with Holstein-Friesian and Simmental bulls to produce animals in a low input dual purpose system. The farm is situated near Brasilia, in the savannah region of Brazil. The climate of the region is classified as Aw by Köppen. Data was available on 1580 calvings and completed lactations of cows with three genetic types: Gyr, Holstein-Friesian × Gyr and Simmental × Gyr. The bulls ran with the cows all year round and the diet comprised of pasture (mainly Brachiaria and Andropogon) during the summer (rainy season) and milled sugar cane with added urea during the winter (dry season). A mineral salt mixture was available ad libitum. Data was analysed using Statistical Analysis System. The results show that, under low input management conditions, the crossbred cows produce approximately twice the volume of milk per lactation, calve at a younger age and have a shorter open period, but there are no significant differences between crosses for growth rates of the calves or body condition of the cows. In this system, crossbred cows had production higher indices than zebu cattle. The best indices were found for cows calving in the rainy season (September to December) and thinner cows (with body condition 3-5 on a scale of 9). |
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Pimentel, Concepta Margaret McManusLouvandini, HelderCarneiro, Helena CristinaLima, Paulo Ricardo MartinsBraccini Neto, José2014-07-23T02:05:55Z20111516-3598http://hdl.handle.net/10183/98423000865977This study examined the effects of crossbreeding low genetic potential cows of Bos indicus origin characterized by Gyr crossed with Holstein-Friesian and Simmental bulls to produce animals in a low input dual purpose system. The farm is situated near Brasilia, in the savannah region of Brazil. The climate of the region is classified as Aw by Köppen. Data was available on 1580 calvings and completed lactations of cows with three genetic types: Gyr, Holstein-Friesian × Gyr and Simmental × Gyr. The bulls ran with the cows all year round and the diet comprised of pasture (mainly Brachiaria and Andropogon) during the summer (rainy season) and milled sugar cane with added urea during the winter (dry season). A mineral salt mixture was available ad libitum. Data was analysed using Statistical Analysis System. The results show that, under low input management conditions, the crossbred cows produce approximately twice the volume of milk per lactation, calve at a younger age and have a shorter open period, but there are no significant differences between crosses for growth rates of the calves or body condition of the cows. In this system, crossbred cows had production higher indices than zebu cattle. The best indices were found for cows calving in the rainy season (September to December) and thinner cows (with body condition 3-5 on a scale of 9).application/pdfengRevista brasileira de zootecnia= Brazilian journal of animal science [recurso eletrônico]. Viçosa, MG. Vol. 40, n.7 (jul. 2011), p.1576-1586Produção animalBeef cattleCrossbreedingMilkProductivityRatiosReal fertilityProduction indices for dual purpose cattle in central Brazilinfo: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:UFRGSORIGINAL000865977.pdf000865977.pdfTexto completo (inglês)application/pdf106274http://www.lume.ufrgs.br/bitstream/10183/98423/1/000865977.pdf698d0aaa9446e54925cd5b9d92d9636eMD51TEXT000865977.pdf.txt000865977.pdf.txtExtracted Texttext/plain54718http://www.lume.ufrgs.br/bitstream/10183/98423/2/000865977.pdf.txt48fa062bf2561ff1febd6d3b1a7447a0MD52THUMBNAIL000865977.pdf.jpg000865977.pdf.jpgGenerated Thumbnailimage/jpeg2023http://www.lume.ufrgs.br/bitstream/10183/98423/3/000865977.pdf.jpgc0530755975530a24a820dc416a4dcdeMD5310183/984232021-07-09 04:32:10.741676oai:www.lume.ufrgs.br:10183/98423Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2021-07-09T07:32:10Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Production indices for dual purpose cattle in central Brazil |
title |
Production indices for dual purpose cattle in central Brazil |
spellingShingle |
Production indices for dual purpose cattle in central Brazil Pimentel, Concepta Margaret McManus Produção animal Beef cattle Crossbreeding Milk Productivity Ratios Real fertility |
title_short |
Production indices for dual purpose cattle in central Brazil |
title_full |
Production indices for dual purpose cattle in central Brazil |
title_fullStr |
Production indices for dual purpose cattle in central Brazil |
title_full_unstemmed |
Production indices for dual purpose cattle in central Brazil |
title_sort |
Production indices for dual purpose cattle in central Brazil |
author |
Pimentel, Concepta Margaret McManus |
author_facet |
Pimentel, Concepta Margaret McManus Louvandini, Helder Carneiro, Helena Cristina Lima, Paulo Ricardo Martins Braccini Neto, José |
author_role |
author |
author2 |
Louvandini, Helder Carneiro, Helena Cristina Lima, Paulo Ricardo Martins Braccini Neto, José |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Pimentel, Concepta Margaret McManus Louvandini, Helder Carneiro, Helena Cristina Lima, Paulo Ricardo Martins Braccini Neto, José |
dc.subject.por.fl_str_mv |
Produção animal |
topic |
Produção animal Beef cattle Crossbreeding Milk Productivity Ratios Real fertility |
dc.subject.eng.fl_str_mv |
Beef cattle Crossbreeding Milk Productivity Ratios Real fertility |
description |
This study examined the effects of crossbreeding low genetic potential cows of Bos indicus origin characterized by Gyr crossed with Holstein-Friesian and Simmental bulls to produce animals in a low input dual purpose system. The farm is situated near Brasilia, in the savannah region of Brazil. The climate of the region is classified as Aw by Köppen. Data was available on 1580 calvings and completed lactations of cows with three genetic types: Gyr, Holstein-Friesian × Gyr and Simmental × Gyr. The bulls ran with the cows all year round and the diet comprised of pasture (mainly Brachiaria and Andropogon) during the summer (rainy season) and milled sugar cane with added urea during the winter (dry season). A mineral salt mixture was available ad libitum. Data was analysed using Statistical Analysis System. The results show that, under low input management conditions, the crossbred cows produce approximately twice the volume of milk per lactation, calve at a younger age and have a shorter open period, but there are no significant differences between crosses for growth rates of the calves or body condition of the cows. In this system, crossbred cows had production higher indices than zebu cattle. The best indices were found for cows calving in the rainy season (September to December) and thinner cows (with body condition 3-5 on a scale of 9). |
publishDate |
2011 |
dc.date.issued.fl_str_mv |
2011 |
dc.date.accessioned.fl_str_mv |
2014-07-23T02:05:55Z |
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 |
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publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10183/98423 |
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1516-3598 |
dc.identifier.nrb.pt_BR.fl_str_mv |
000865977 |
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1516-3598 000865977 |
url |
http://hdl.handle.net/10183/98423 |
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. 40, n.7 (jul. 2011), p.1576-1586 |
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info:eu-repo/semantics/openAccess |
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openAccess |
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application/pdf |
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Repositório Institucional da UFRGS |
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