Supplementation of suckling beef calves with different levels of crude protein on tropical pasture
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | LOCUS Repositório Institucional da UFV |
Texto Completo: | http://dx.doi.org/10.1007/s11250-013-0500-6 http://www.locus.ufv.br/handle/123456789/12912 |
Resumo: | The effects of supplementation with different levels of crude protein on performance, intake and nutrient digestibility and efficiency of microbial protein synthesis in suckling beef calves on pasture were assessed. Fifty-five calves, with an average age of 100 days and an initial average body weight of 110 ± 7.5 kg and their respective dams, were used. The experimental design was completely randomised with five treatments and 11 replications. The experimental treatments for calves were as follows: control = calves received only mineral mixture; supplementation levels = calves received supplement containing 8, 19, 30 or 41 % of crude protein (CP, at a rate of 0.5 % of body weight (BW)). The cows received only mineral mixture ad libitum. Supplemented calves had higher (P < 0.1) average daily gain (ADG). Protein levels showed a quadratic effect (P < 0.1) on average daily gain (ADG) of calves. There was no difference in total dry matter (DM) intake (P > 0.1). However, intake of dry matter forage (DMF) presented cubic profiles (P < 0.1), with CP levels in the supplements. Supplementation increased (P < 0.1) the digestibility of nutrients, except for the digestibility of neutral detergent fibre. Supplementation increased (P < 0.1) the production of microbial nitrogen and N losses in urine. It can be concluded that multiple supplementations optimise the performance of beef calves on creep feeding. The intake of supplements with CP levels between 8 and 30 % partially replaces of the pasture ingested by calves and increases the digestibility of the diet. |
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Supplementation of suckling beef calves with different levels of crude protein on tropical pastureCalvesCreep feedingDigestibilityIntakeNelloreSupplementationThe effects of supplementation with different levels of crude protein on performance, intake and nutrient digestibility and efficiency of microbial protein synthesis in suckling beef calves on pasture were assessed. Fifty-five calves, with an average age of 100 days and an initial average body weight of 110 ± 7.5 kg and their respective dams, were used. The experimental design was completely randomised with five treatments and 11 replications. The experimental treatments for calves were as follows: control = calves received only mineral mixture; supplementation levels = calves received supplement containing 8, 19, 30 or 41 % of crude protein (CP, at a rate of 0.5 % of body weight (BW)). The cows received only mineral mixture ad libitum. Supplemented calves had higher (P < 0.1) average daily gain (ADG). Protein levels showed a quadratic effect (P < 0.1) on average daily gain (ADG) of calves. There was no difference in total dry matter (DM) intake (P > 0.1). However, intake of dry matter forage (DMF) presented cubic profiles (P < 0.1), with CP levels in the supplements. Supplementation increased (P < 0.1) the digestibility of nutrients, except for the digestibility of neutral detergent fibre. Supplementation increased (P < 0.1) the production of microbial nitrogen and N losses in urine. It can be concluded that multiple supplementations optimise the performance of beef calves on creep feeding. The intake of supplements with CP levels between 8 and 30 % partially replaces of the pasture ingested by calves and increases the digestibility of the diet.Tropical Animal Health and Production2017-11-08T16:22:10Z2017-11-08T16:22:10Z2013-11-19info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlepdfapplication/pdf1573-7438http://dx.doi.org/10.1007/s11250-013-0500-6http://www.locus.ufv.br/handle/123456789/12912engVolume 46, Issue 2, p. 379–384, February 2014Lopes, Sidnei AntonioPaulino, Mário FonsecaDetmann, EdenioValadares Filho, Sebastião de CamposBarros, Lívia VieiraCardenas, Javier Enrique GarcesAlmeida, Daniel MagesteMartins, Leandro SoaresSilva, Aline GomesValente, Ériton Egídio Lisboainfo:eu-repo/semantics/openAccessreponame:LOCUS Repositório Institucional da UFVinstname:Universidade Federal de Viçosa (UFV)instacron:UFV2024-07-12T07:17:04Zoai:locus.ufv.br:123456789/12912Repositório InstitucionalPUBhttps://www.locus.ufv.br/oai/requestfabiojreis@ufv.bropendoar:21452024-07-12T07:17:04LOCUS Repositório Institucional da UFV - Universidade Federal de Viçosa (UFV)false |
dc.title.none.fl_str_mv |
Supplementation of suckling beef calves with different levels of crude protein on tropical pasture |
title |
Supplementation of suckling beef calves with different levels of crude protein on tropical pasture |
spellingShingle |
Supplementation of suckling beef calves with different levels of crude protein on tropical pasture Lopes, Sidnei Antonio Calves Creep feeding Digestibility Intake Nellore Supplementation |
title_short |
Supplementation of suckling beef calves with different levels of crude protein on tropical pasture |
title_full |
Supplementation of suckling beef calves with different levels of crude protein on tropical pasture |
title_fullStr |
Supplementation of suckling beef calves with different levels of crude protein on tropical pasture |
title_full_unstemmed |
Supplementation of suckling beef calves with different levels of crude protein on tropical pasture |
title_sort |
Supplementation of suckling beef calves with different levels of crude protein on tropical pasture |
author |
Lopes, Sidnei Antonio |
author_facet |
Lopes, Sidnei Antonio Paulino, Mário Fonseca Detmann, Edenio Valadares Filho, Sebastião de Campos Barros, Lívia Vieira Cardenas, Javier Enrique Garces Almeida, Daniel Mageste Martins, Leandro Soares Silva, Aline Gomes Valente, Ériton Egídio Lisboa |
author_role |
author |
author2 |
Paulino, Mário Fonseca Detmann, Edenio Valadares Filho, Sebastião de Campos Barros, Lívia Vieira Cardenas, Javier Enrique Garces Almeida, Daniel Mageste Martins, Leandro Soares Silva, Aline Gomes Valente, Ériton Egídio Lisboa |
author2_role |
author author author author author author author author author |
dc.contributor.author.fl_str_mv |
Lopes, Sidnei Antonio Paulino, Mário Fonseca Detmann, Edenio Valadares Filho, Sebastião de Campos Barros, Lívia Vieira Cardenas, Javier Enrique Garces Almeida, Daniel Mageste Martins, Leandro Soares Silva, Aline Gomes Valente, Ériton Egídio Lisboa |
dc.subject.por.fl_str_mv |
Calves Creep feeding Digestibility Intake Nellore Supplementation |
topic |
Calves Creep feeding Digestibility Intake Nellore Supplementation |
description |
The effects of supplementation with different levels of crude protein on performance, intake and nutrient digestibility and efficiency of microbial protein synthesis in suckling beef calves on pasture were assessed. Fifty-five calves, with an average age of 100 days and an initial average body weight of 110 ± 7.5 kg and their respective dams, were used. The experimental design was completely randomised with five treatments and 11 replications. The experimental treatments for calves were as follows: control = calves received only mineral mixture; supplementation levels = calves received supplement containing 8, 19, 30 or 41 % of crude protein (CP, at a rate of 0.5 % of body weight (BW)). The cows received only mineral mixture ad libitum. Supplemented calves had higher (P < 0.1) average daily gain (ADG). Protein levels showed a quadratic effect (P < 0.1) on average daily gain (ADG) of calves. There was no difference in total dry matter (DM) intake (P > 0.1). However, intake of dry matter forage (DMF) presented cubic profiles (P < 0.1), with CP levels in the supplements. Supplementation increased (P < 0.1) the digestibility of nutrients, except for the digestibility of neutral detergent fibre. Supplementation increased (P < 0.1) the production of microbial nitrogen and N losses in urine. It can be concluded that multiple supplementations optimise the performance of beef calves on creep feeding. The intake of supplements with CP levels between 8 and 30 % partially replaces of the pasture ingested by calves and increases the digestibility of the diet. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-11-19 2017-11-08T16:22:10Z 2017-11-08T16:22:10Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
1573-7438 http://dx.doi.org/10.1007/s11250-013-0500-6 http://www.locus.ufv.br/handle/123456789/12912 |
identifier_str_mv |
1573-7438 |
url |
http://dx.doi.org/10.1007/s11250-013-0500-6 http://www.locus.ufv.br/handle/123456789/12912 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Volume 46, Issue 2, p. 379–384, February 2014 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
pdf application/pdf |
dc.publisher.none.fl_str_mv |
Tropical Animal Health and Production |
publisher.none.fl_str_mv |
Tropical Animal Health and Production |
dc.source.none.fl_str_mv |
reponame:LOCUS Repositório Institucional da UFV instname:Universidade Federal de Viçosa (UFV) instacron:UFV |
instname_str |
Universidade Federal de Viçosa (UFV) |
instacron_str |
UFV |
institution |
UFV |
reponame_str |
LOCUS Repositório Institucional da UFV |
collection |
LOCUS Repositório Institucional da UFV |
repository.name.fl_str_mv |
LOCUS Repositório Institucional da UFV - Universidade Federal de Viçosa (UFV) |
repository.mail.fl_str_mv |
fabiojreis@ufv.br |
_version_ |
1817559915890212864 |