Macromineral requirements by beef cattle under pasture supplementation

Detalhes bibliográficos
Autor(a) principal: Sales,Maykel Franklin Lima
Data de Publicação: 2011
Outros Autores: Paulino,Mário Fonseca, Valadares Filho,Sebastião de Campos, Porto,Marlos Oliveira, Couto,Victor Rezende Moreira, Paulino,Pedro Veiga Rodrigues
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=S1516-35982011000200026
Resumo: The objective of this work was to determine macromineral requirements by Zebu steers grazing Brachiaria decumbens supplemented with concentrate. It was used 24 non-castrated steers, at an average age of 7 months and at initial average weight 180 kg. Eight control animals were slaughtered for determining initial body composition. The 16 remaining animals were divided in four four-animal plots, in a complete random design. Each plot received mineral mixture or supplements at the levels 0.75; 1.50 or 2.25 kg/animal/day. The right half-carcass of eight animals, two per group, was dissected in muscle, fat and bones and all body constituents were weighted for determination of empty body weight and body composition. Net requirements of calcium and phosphorus for an animal at 400 kg body weight were 11.13 g and 5.40 g, respectively. To estimate dietary requirements of maintenance and after, sum them to dietary requirements for gain in order to obtain total dietary requirements, it was adopted endogenous losses and bioavailability present in literature for each mineral macroelement. Total dietary requirement for calcium, phosphorus, magnesium, sodium and potassium for a 400-kg BW animal with 1.0-kg daily weight gain were 34.59; 17.36; 7.82; 5.19 and 41.11 g/day, respectively. Macromineral requirements by beef cattle under pasture supplementation are similar to those recommended by BR-Corte for beef cattle in feedlots.
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spelling Macromineral requirements by beef cattle under pasture supplementationcalciumnutritional requirementphosphorussupplementationZebuThe objective of this work was to determine macromineral requirements by Zebu steers grazing Brachiaria decumbens supplemented with concentrate. It was used 24 non-castrated steers, at an average age of 7 months and at initial average weight 180 kg. Eight control animals were slaughtered for determining initial body composition. The 16 remaining animals were divided in four four-animal plots, in a complete random design. Each plot received mineral mixture or supplements at the levels 0.75; 1.50 or 2.25 kg/animal/day. The right half-carcass of eight animals, two per group, was dissected in muscle, fat and bones and all body constituents were weighted for determination of empty body weight and body composition. Net requirements of calcium and phosphorus for an animal at 400 kg body weight were 11.13 g and 5.40 g, respectively. To estimate dietary requirements of maintenance and after, sum them to dietary requirements for gain in order to obtain total dietary requirements, it was adopted endogenous losses and bioavailability present in literature for each mineral macroelement. Total dietary requirement for calcium, phosphorus, magnesium, sodium and potassium for a 400-kg BW animal with 1.0-kg daily weight gain were 34.59; 17.36; 7.82; 5.19 and 41.11 g/day, respectively. Macromineral requirements by beef cattle under pasture supplementation are similar to those recommended by BR-Corte for beef cattle in feedlots.Sociedade Brasileira de Zootecnia2011-02-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011000200026Revista Brasileira de Zootecnia v.40 n.2 2011reponame:Revista Brasileira de Zootecnia (Online)instname:Sociedade Brasileira de Zootecnia (SBZ)instacron:SBZ10.1590/S1516-35982011000200026info:eu-repo/semantics/openAccessSales,Maykel Franklin LimaPaulino,Mário FonsecaValadares Filho,Sebastião de CamposPorto,Marlos OliveiraCouto,Victor Rezende MoreiraPaulino,Pedro Veiga Rodrigueseng2011-03-02T00:00:00Zoai:scielo:S1516-35982011000200026Revistahttps://www.rbz.org.br/pt-br/https://old.scielo.br/oai/scielo-oai.php||bz@sbz.org.br|| secretariarbz@sbz.org.br1806-92901516-3598opendoar:2011-03-02T00:00Revista Brasileira de Zootecnia (Online) - Sociedade Brasileira de Zootecnia (SBZ)false
dc.title.none.fl_str_mv Macromineral requirements by beef cattle under pasture supplementation
title Macromineral requirements by beef cattle under pasture supplementation
spellingShingle Macromineral requirements by beef cattle under pasture supplementation
Sales,Maykel Franklin Lima
calcium
nutritional requirement
phosphorus
supplementation
Zebu
title_short Macromineral requirements by beef cattle under pasture supplementation
title_full Macromineral requirements by beef cattle under pasture supplementation
title_fullStr Macromineral requirements by beef cattle under pasture supplementation
title_full_unstemmed Macromineral requirements by beef cattle under pasture supplementation
title_sort Macromineral requirements by beef cattle under pasture supplementation
author Sales,Maykel Franklin Lima
author_facet Sales,Maykel Franklin Lima
Paulino,Mário Fonseca
Valadares Filho,Sebastião de Campos
Porto,Marlos Oliveira
Couto,Victor Rezende Moreira
Paulino,Pedro Veiga Rodrigues
author_role author
author2 Paulino,Mário Fonseca
Valadares Filho,Sebastião de Campos
Porto,Marlos Oliveira
Couto,Victor Rezende Moreira
Paulino,Pedro Veiga Rodrigues
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Sales,Maykel Franklin Lima
Paulino,Mário Fonseca
Valadares Filho,Sebastião de Campos
Porto,Marlos Oliveira
Couto,Victor Rezende Moreira
Paulino,Pedro Veiga Rodrigues
dc.subject.por.fl_str_mv calcium
nutritional requirement
phosphorus
supplementation
Zebu
topic calcium
nutritional requirement
phosphorus
supplementation
Zebu
description The objective of this work was to determine macromineral requirements by Zebu steers grazing Brachiaria decumbens supplemented with concentrate. It was used 24 non-castrated steers, at an average age of 7 months and at initial average weight 180 kg. Eight control animals were slaughtered for determining initial body composition. The 16 remaining animals were divided in four four-animal plots, in a complete random design. Each plot received mineral mixture or supplements at the levels 0.75; 1.50 or 2.25 kg/animal/day. The right half-carcass of eight animals, two per group, was dissected in muscle, fat and bones and all body constituents were weighted for determination of empty body weight and body composition. Net requirements of calcium and phosphorus for an animal at 400 kg body weight were 11.13 g and 5.40 g, respectively. To estimate dietary requirements of maintenance and after, sum them to dietary requirements for gain in order to obtain total dietary requirements, it was adopted endogenous losses and bioavailability present in literature for each mineral macroelement. Total dietary requirement for calcium, phosphorus, magnesium, sodium and potassium for a 400-kg BW animal with 1.0-kg daily weight gain were 34.59; 17.36; 7.82; 5.19 and 41.11 g/day, respectively. Macromineral requirements by beef cattle under pasture supplementation are similar to those recommended by BR-Corte for beef cattle in feedlots.
publishDate 2011
dc.date.none.fl_str_mv 2011-02-01
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dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011000200026
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dc.language.iso.fl_str_mv eng
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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.40 n.2 2011
reponame:Revista Brasileira de Zootecnia (Online)
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