Performance and nutritional evaluation of beef cattle raised on pasture, castrated at different ages, with and without supplementation
Autor(a) principal: | |
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Data de Publicação: | 2012 |
Outros Autores: | , , , , , , |
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=S1516-35982012000400026 |
Resumo: | The objective of this study was to evaluate performance and nutritional traits of beef cattle raised on pastures, castrated at different ages, with and without supplementation. Forty-four crossbred young bulls with predominance of Zebu breed at initial average age of 120±30 days were used in the experiment. Animals were distributed in a completely randomized design in a factorial arrangement with four ages of castration and two supplementation systems. The animals were distributed into four groups and placed on Brachiaria decumbens Stapf pastures, where they were fed concentrate supplementation or mineral salt ad libtum (control). Animals were castrated at 120, 240 and 360 days of age with average body weight of 115, 175 and 276 kg, castrated or not, in each supplementation group. Concentrate supplement composition and the amount supplied to the animals varied according to the time of the year and development phase of the animals. Trials were carried out to evaluate nutritional variables in each of the following phases: suckling, growth in the dry season and growth in the dry/rainy transition season. Concentrate supplementation improved the use of pasture, although it may have caused substitutive effect in all seasons evaluated. Castration of the animals before the dry season impaired animal development until the following dry/rainy transition season, especially when carried out during weaning. Concentrate supply may reduce some effects of this stress. |
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Performance and nutritional evaluation of beef cattle raised on pasture, castrated at different ages, with and without supplementationcastrationdigestibilityintakesupplementationThe objective of this study was to evaluate performance and nutritional traits of beef cattle raised on pastures, castrated at different ages, with and without supplementation. Forty-four crossbred young bulls with predominance of Zebu breed at initial average age of 120±30 days were used in the experiment. Animals were distributed in a completely randomized design in a factorial arrangement with four ages of castration and two supplementation systems. The animals were distributed into four groups and placed on Brachiaria decumbens Stapf pastures, where they were fed concentrate supplementation or mineral salt ad libtum (control). Animals were castrated at 120, 240 and 360 days of age with average body weight of 115, 175 and 276 kg, castrated or not, in each supplementation group. Concentrate supplement composition and the amount supplied to the animals varied according to the time of the year and development phase of the animals. Trials were carried out to evaluate nutritional variables in each of the following phases: suckling, growth in the dry season and growth in the dry/rainy transition season. Concentrate supplementation improved the use of pasture, although it may have caused substitutive effect in all seasons evaluated. Castration of the animals before the dry season impaired animal development until the following dry/rainy transition season, especially when carried out during weaning. Concentrate supply may reduce some effects of this stress.Sociedade Brasileira de Zootecnia2012-04-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000400026Revista Brasileira de Zootecnia v.41 n.4 2012reponame:Revista Brasileira de Zootecnia (Online)instname:Sociedade Brasileira de Zootecnia (SBZ)instacron:SBZ10.1590/S1516-35982012000400026info:eu-repo/semantics/openAccessRocha,Anilza Andréia daPaulino,Mário FonsecaFernandes,Henrique JorgeBarros,Lívia Vieira deLopes,Sidnei AntonioGalon,LeandroSilva,Aline Gomes daAlmeida,Daniel Mageste deeng2012-05-23T00:00:00Zoai:scielo:S1516-35982012000400026Revistahttps://www.rbz.org.br/pt-br/https://old.scielo.br/oai/scielo-oai.php||bz@sbz.org.br|| secretariarbz@sbz.org.br1806-92901516-3598opendoar:2012-05-23T00:00Revista Brasileira de Zootecnia (Online) - Sociedade Brasileira de Zootecnia (SBZ)false |
dc.title.none.fl_str_mv |
Performance and nutritional evaluation of beef cattle raised on pasture, castrated at different ages, with and without supplementation |
title |
Performance and nutritional evaluation of beef cattle raised on pasture, castrated at different ages, with and without supplementation |
spellingShingle |
Performance and nutritional evaluation of beef cattle raised on pasture, castrated at different ages, with and without supplementation Rocha,Anilza Andréia da castration digestibility intake supplementation |
title_short |
Performance and nutritional evaluation of beef cattle raised on pasture, castrated at different ages, with and without supplementation |
title_full |
Performance and nutritional evaluation of beef cattle raised on pasture, castrated at different ages, with and without supplementation |
title_fullStr |
Performance and nutritional evaluation of beef cattle raised on pasture, castrated at different ages, with and without supplementation |
title_full_unstemmed |
Performance and nutritional evaluation of beef cattle raised on pasture, castrated at different ages, with and without supplementation |
title_sort |
Performance and nutritional evaluation of beef cattle raised on pasture, castrated at different ages, with and without supplementation |
author |
Rocha,Anilza Andréia da |
author_facet |
Rocha,Anilza Andréia da Paulino,Mário Fonseca Fernandes,Henrique Jorge Barros,Lívia Vieira de Lopes,Sidnei Antonio Galon,Leandro Silva,Aline Gomes da Almeida,Daniel Mageste de |
author_role |
author |
author2 |
Paulino,Mário Fonseca Fernandes,Henrique Jorge Barros,Lívia Vieira de Lopes,Sidnei Antonio Galon,Leandro Silva,Aline Gomes da Almeida,Daniel Mageste de |
author2_role |
author author author author author author author |
dc.contributor.author.fl_str_mv |
Rocha,Anilza Andréia da Paulino,Mário Fonseca Fernandes,Henrique Jorge Barros,Lívia Vieira de Lopes,Sidnei Antonio Galon,Leandro Silva,Aline Gomes da Almeida,Daniel Mageste de |
dc.subject.por.fl_str_mv |
castration digestibility intake supplementation |
topic |
castration digestibility intake supplementation |
description |
The objective of this study was to evaluate performance and nutritional traits of beef cattle raised on pastures, castrated at different ages, with and without supplementation. Forty-four crossbred young bulls with predominance of Zebu breed at initial average age of 120±30 days were used in the experiment. Animals were distributed in a completely randomized design in a factorial arrangement with four ages of castration and two supplementation systems. The animals were distributed into four groups and placed on Brachiaria decumbens Stapf pastures, where they were fed concentrate supplementation or mineral salt ad libtum (control). Animals were castrated at 120, 240 and 360 days of age with average body weight of 115, 175 and 276 kg, castrated or not, in each supplementation group. Concentrate supplement composition and the amount supplied to the animals varied according to the time of the year and development phase of the animals. Trials were carried out to evaluate nutritional variables in each of the following phases: suckling, growth in the dry season and growth in the dry/rainy transition season. Concentrate supplementation improved the use of pasture, although it may have caused substitutive effect in all seasons evaluated. Castration of the animals before the dry season impaired animal development until the following dry/rainy transition season, especially when carried out during weaning. Concentrate supply may reduce some effects of this stress. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-04-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000400026 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000400026 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S1516-35982012000400026 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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.41 n.4 2012 reponame:Revista Brasileira de Zootecnia (Online) instname:Sociedade Brasileira de Zootecnia (SBZ) instacron:SBZ |
instname_str |
Sociedade Brasileira de Zootecnia (SBZ) |
instacron_str |
SBZ |
institution |
SBZ |
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) |
repository.mail.fl_str_mv |
||bz@sbz.org.br|| secretariarbz@sbz.org.br |
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1750318149587173376 |