Protein and Energy sources with differing degradabilities for finishing steers - DOI: 10.4025/actascianimsci.v29i2.225

The objective of this study was to determine the effect of synchronization of starch (finely ground or steam-flaked corn) and protein (soybean meal or urea) rumen degradation on dry matter intake, total tract digestibility and rumen parameters of finishing Nelore steers. Four Nelore steers (300 kg L...

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Authors: Gabarra, Paola Ranzani, Santos, Flávio Augusto Portela, Bittar, Carla Maris Machado, Pires, Alexandre Vaz, Imaizumi, Hugo
Format: article
Status:Published version
Publication Date:2007
Country:Brasil
Institution:Universidade Estadual de Maringá (UEM)
Repository:Acta Scientiarum. Animal Sciences (Online)
Language:Portuguese
OAI Identifier:oai:periodicos.uem.br/ojs:article/225
Online Access:https://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/225
Access Level:Open access
Keyword:amido
floculado
milho
proteína
5 5.04.00.00-2 Zootecnia
id BR_b42bbf2fe5f21e691bc9e60cc43e4fd7
oai_identifier_str oai:periodicos.uem.br/ojs:article/225
network_acronym_str BR
network_name_str Brasil
repository_id_str
spelling Protein and Energy sources with differing degradabilities for finishing steers - DOI: 10.4025/actascianimsci.v29i2.225Fontes protéicas e energéticas com diferentes degradabilidades ruminais para novilhos de corte - DOI: 10.4025/actascianimsci.v29i2.225amidofloculadomilhoproteína5 5.04.00.00-2 ZootecniaThe objective of this study was to determine the effect of synchronization of starch (finely ground or steam-flaked corn) and protein (soybean meal or urea) rumen degradation on dry matter intake, total tract digestibility and rumen parameters of finishing Nelore steers. Four Nelore steers (300 kg LW) were utilized in a 4 x 4 Latin Square design, 2 x 2 factorial arragment: two corn processing methods (fine grinding vs. steam flaking) and two protein sources (soybean meal vs. urea). The diets contained 13% grass hay and 87% concentrate. Steam flaking decreased (p < 0.01) starch concentration in duodenal digesta, which would explain lower ruminal pH (p < 0.15) and concentration of N-NH3 (p < 0.01), plasma urea-N concentration (p < 0.01); and the increased molar concentration of ruminal propionate (p < 0.01). As compared to fine grinding, steam-flaking corn increased (p < 0.01) total tract digestibility of starch (98.8 vs. 88.6%), but decreased (p < 0.01) NDF digestibility (41.9 vs. 12.1%). Protein sources had no effect on the evaluated variables. Increasing starch degradability through steam-flaking of corn improved dietary protein utilization by beef steers.O objetivo deste trabalho foi determinar o efeito da sincronização da degradação ruminal de fontes de amido (milho moído fino ou milho floculado) e proteína (farelo de soja e uréia), no consumo de matéria seca, digestibilidade no trato total e parâmetros ruminais de novilhos Nelore em terminação. Quatro novilhos Nelore (300 kg PV) foram utilizados em delineamento do tipo Quadrado Latino 4 x 4, fatorial 2 x 2: dois métodos de processamento do milho (moagem fina x floculação) e duas fontes protéicas (farelo de soja x uréia). As rações continham 13% de feno de gramínea e 87% de concentrado. A floculação do milho reduziu a concentração de amido duodenal (p < 0,01), explicando reduções na concentração de N-NH3 (p < 0,01) e pH ruminal (p < 0,15), de Nuréico plasmático (p < 0,01) e o aumento na concentração molar de propionato no rúmen (p < 0,01). Comparando-se à moagem, a floculação aumentou (p < 0,01) a digestibilidade do amido no trato digestivo total (98,8 vs. 88,6%), mas reduziu (p < 0,01) a digestibilidade da FDN (41,9 vs. 12,1%). Não houve efeito de fonte protéica sobre as variáveis avaliadas. O aumento da degradabilidade ruminal do amido através da floculação do milho permitiu uma utilização mais eficiente da proteína da dieta por novilhos de corte.Editora da Universidade Estadual de Maringá2007-11-13info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/22510.4025/actascianimsci.v29i2.225Acta Scientiarum. Animal Sciences; Vol 29 No 2 (2007); 195-202Acta Scientiarum. Animal Sciences; v. 29 n. 2 (2007); 195-2021807-86721806-2636reponame:Acta Scientiarum. Animal Sciences (Online)instname:Universidade Estadual de Maringá (UEM)instacron:UEMporhttps://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/225/177info:eu-repo/semantics/openAccessGabarra, Paola RanzaniSantos, Flávio Augusto PortelaBittar, Carla Maris MachadoPires, Alexandre VazImaizumi, Hugo2024-05-17T13:03:05Zoai:periodicos.uem.br/ojs:article/225Revistahttp://www.periodicos.uem.br/ojs/index.php/ActaSciAnimSciPUBhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAnimSci/oaiactaanim@uem.br||actaanim@uem.br|| rev.acta@gmail.com1807-86721806-2636opendoar:2024-05-17T13:03:05Acta Scientiarum. Animal Sciences (Online) - Universidade Estadual de Maringá (UEM)false
dc.title.none.fl_str_mv Protein and Energy sources with differing degradabilities for finishing steers - DOI: 10.4025/actascianimsci.v29i2.225
Fontes protéicas e energéticas com diferentes degradabilidades ruminais para novilhos de corte - DOI: 10.4025/actascianimsci.v29i2.225
title Protein and Energy sources with differing degradabilities for finishing steers - DOI: 10.4025/actascianimsci.v29i2.225
spellingShingle Protein and Energy sources with differing degradabilities for finishing steers - DOI: 10.4025/actascianimsci.v29i2.225
Gabarra, Paola Ranzani
amido
floculado
milho
proteína
5 5.04.00.00-2 Zootecnia
title_short Protein and Energy sources with differing degradabilities for finishing steers - DOI: 10.4025/actascianimsci.v29i2.225
title_full Protein and Energy sources with differing degradabilities for finishing steers - DOI: 10.4025/actascianimsci.v29i2.225
title_fullStr Protein and Energy sources with differing degradabilities for finishing steers - DOI: 10.4025/actascianimsci.v29i2.225
title_full_unstemmed Protein and Energy sources with differing degradabilities for finishing steers - DOI: 10.4025/actascianimsci.v29i2.225
title_sort Protein and Energy sources with differing degradabilities for finishing steers - DOI: 10.4025/actascianimsci.v29i2.225
dc.creator.none.fl_str_mv Gabarra, Paola Ranzani
Santos, Flávio Augusto Portela
Bittar, Carla Maris Machado
Pires, Alexandre Vaz
Imaizumi, Hugo
author Gabarra, Paola Ranzani
author_facet Gabarra, Paola Ranzani
Santos, Flávio Augusto Portela
Bittar, Carla Maris Machado
Pires, Alexandre Vaz
Imaizumi, Hugo
author_role author
author2 Santos, Flávio Augusto Portela
Bittar, Carla Maris Machado
Pires, Alexandre Vaz
Imaizumi, Hugo
author2_role author
author
author
author
dc.subject.por.fl_str_mv amido
floculado
milho
proteína
5 5.04.00.00-2 Zootecnia
topic amido
floculado
milho
proteína
5 5.04.00.00-2 Zootecnia
description The objective of this study was to determine the effect of synchronization of starch (finely ground or steam-flaked corn) and protein (soybean meal or urea) rumen degradation on dry matter intake, total tract digestibility and rumen parameters of finishing Nelore steers. Four Nelore steers (300 kg LW) were utilized in a 4 x 4 Latin Square design, 2 x 2 factorial arragment: two corn processing methods (fine grinding vs. steam flaking) and two protein sources (soybean meal vs. urea). The diets contained 13% grass hay and 87% concentrate. Steam flaking decreased (p < 0.01) starch concentration in duodenal digesta, which would explain lower ruminal pH (p < 0.15) and concentration of N-NH3 (p < 0.01), plasma urea-N concentration (p < 0.01); and the increased molar concentration of ruminal propionate (p < 0.01). As compared to fine grinding, steam-flaking corn increased (p < 0.01) total tract digestibility of starch (98.8 vs. 88.6%), but decreased (p < 0.01) NDF digestibility (41.9 vs. 12.1%). Protein sources had no effect on the evaluated variables. Increasing starch degradability through steam-flaking of corn improved dietary protein utilization by beef steers.
publishDate 2007
dc.date.none.fl_str_mv 2007-11-13
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/225
10.4025/actascianimsci.v29i2.225
url https://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/225
identifier_str_mv 10.4025/actascianimsci.v29i2.225
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/225/177
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Editora da Universidade Estadual de Maringá
publisher.none.fl_str_mv Editora da Universidade Estadual de Maringá
dc.source.none.fl_str_mv Acta Scientiarum. Animal Sciences; Vol 29 No 2 (2007); 195-202
Acta Scientiarum. Animal Sciences; v. 29 n. 2 (2007); 195-202
1807-8672
1806-2636
reponame:Acta Scientiarum. Animal Sciences (Online)
instname:Universidade Estadual de Maringá (UEM)
instacron:UEM
instname_str Universidade Estadual de Maringá (UEM)
instacron_str UEM
institution UEM
reponame_str Acta Scientiarum. Animal Sciences (Online)
collection Acta Scientiarum. Animal Sciences (Online)
repository.name.fl_str_mv Acta Scientiarum. Animal Sciences (Online) - Universidade Estadual de Maringá (UEM)
repository.mail.fl_str_mv actaanim@uem.br||actaanim@uem.br|| rev.acta@gmail.com
_version_ 1853660143912222720
score 15,228081

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