Effect of protein levels and sources on performance and nutrient utilization by lactating dairy cows - DOI: 10.4025/actascianimsci.v29i3.570
Autor(a) principal: | |
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Data de Publicação: | 2007 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Acta Scientiarum. Animal Sciences (Online) |
Texto Completo: | https://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/570 |
Resumo: | Five ruminally cannulated lactating dairy cows, producing 27 kg day-1 of milk, were used in a 5 x 5 Latin Square design. Diets contained different protein sources: control, urea, soybean meal, roasted soybeans and corn gluten meal. The control diet featured 13.4% crude protein, and the other diets 16.5%. Dry matter intake, milk production, milk fat content and yield, and feed efficiency were not affected by the treatments. Feeding roasted soybeans decreased milk protein content (p < 0.05). The treatments had no effect on the total tract digestibilities of dry matter, organic matter, starch and neutral detergent fiber; however, crude protein digestibility was reduced with the control and roasted soybeans diets (p < 0.05). Feeding urea increased plasma urea-N (p < 0.05). The treatments had no effects on plasma glucose concentration. |
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Effect of protein levels and sources on performance and nutrient utilization by lactating dairy cows - DOI: 10.4025/actascianimsci.v29i3.570Efeito de fontes e teores de proteína sobre digestibilidade de nutrientes e desempenho de vacas em lactação - DOI: 10.4025/actascianimsci.v29i3.570farelo de glúten de milhofarelo de sojaproteína não-degradável no rúmensoja tostadauréia5.04.00.00-2 ZootecniaFive ruminally cannulated lactating dairy cows, producing 27 kg day-1 of milk, were used in a 5 x 5 Latin Square design. Diets contained different protein sources: control, urea, soybean meal, roasted soybeans and corn gluten meal. The control diet featured 13.4% crude protein, and the other diets 16.5%. Dry matter intake, milk production, milk fat content and yield, and feed efficiency were not affected by the treatments. Feeding roasted soybeans decreased milk protein content (p < 0.05). The treatments had no effect on the total tract digestibilities of dry matter, organic matter, starch and neutral detergent fiber; however, crude protein digestibility was reduced with the control and roasted soybeans diets (p < 0.05). Feeding urea increased plasma urea-N (p < 0.05). The treatments had no effects on plasma glucose concentration.Foram utilizadas cinco vacas Holandesas, providas de cânulas permanentes no rúmen, com produção de leite em torno de 27 kg dia-1, em quadrado latino 5 x 5. As dietas continham diferentes fontes protéicas: controle, uréia, farelo de soja, soja tostada e farelo de glúten de milho. A dieta controle apresentou proteína bruta de 13,4% e as demais, 16,5%. Os parâmetros ingestão de matéria seca, produção de leite, porcentagem e produção de gordura do leite e eficiência alimentar não foram afetados pelos tratamentos. A soja tostada reduziu a porcentagem de proteína do leite (p < 0,05). As digestibilidades da matéria seca, matéria orgânica, amido e fibra em detergente neutro no trato total não foram afetadas pelos tratamentos; mas o tratamento controle e soja tostada diminuíram a digestibilidade da proteína bruta (p < 0,05). A uréia aumentou (p < 0,05) as concentrações de N-uréico plasmático, enquanto a concentração glicose plasmática não foi afetada pelos tratamentos.Editora da Universidade Estadual de Maringá2007-12-14info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/57010.4025/actascianimsci.v29i3.570Acta Scientiarum. Animal Sciences; Vol 29 No 3 (2007); 325-331Acta Scientiarum. Animal Sciences; v. 29 n. 3 (2007); 325-3311807-86721806-2636reponame:Acta Scientiarum. Animal Sciences (Online)instname:Universidade Estadual de Maringá (UEM)instacron:UEMporhttps://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/570/323Guidi, Maria TeresaSantos, Flávio Augusto PortelaBittar, Carla Maris MachadoPires, Alexandre VazMenezes Júnior, Mário Procópio deImaizumi, Hugoinfo:eu-repo/semantics/openAccess2024-05-17T13:03:11Zoai:periodicos.uem.br/ojs:article/570Revistahttp://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:2024-05-17T13:03:11Acta Scientiarum. Animal Sciences (Online) - Universidade Estadual de Maringá (UEM)false |
dc.title.none.fl_str_mv |
Effect of protein levels and sources on performance and nutrient utilization by lactating dairy cows - DOI: 10.4025/actascianimsci.v29i3.570 Efeito de fontes e teores de proteína sobre digestibilidade de nutrientes e desempenho de vacas em lactação - DOI: 10.4025/actascianimsci.v29i3.570 |
title |
Effect of protein levels and sources on performance and nutrient utilization by lactating dairy cows - DOI: 10.4025/actascianimsci.v29i3.570 |
spellingShingle |
Effect of protein levels and sources on performance and nutrient utilization by lactating dairy cows - DOI: 10.4025/actascianimsci.v29i3.570 Guidi, Maria Teresa farelo de glúten de milho farelo de soja proteína não-degradável no rúmen soja tostada uréia 5.04.00.00-2 Zootecnia |
title_short |
Effect of protein levels and sources on performance and nutrient utilization by lactating dairy cows - DOI: 10.4025/actascianimsci.v29i3.570 |
title_full |
Effect of protein levels and sources on performance and nutrient utilization by lactating dairy cows - DOI: 10.4025/actascianimsci.v29i3.570 |
title_fullStr |
Effect of protein levels and sources on performance and nutrient utilization by lactating dairy cows - DOI: 10.4025/actascianimsci.v29i3.570 |
title_full_unstemmed |
Effect of protein levels and sources on performance and nutrient utilization by lactating dairy cows - DOI: 10.4025/actascianimsci.v29i3.570 |
title_sort |
Effect of protein levels and sources on performance and nutrient utilization by lactating dairy cows - DOI: 10.4025/actascianimsci.v29i3.570 |
author |
Guidi, Maria Teresa |
author_facet |
Guidi, Maria Teresa Santos, Flávio Augusto Portela Bittar, Carla Maris Machado Pires, Alexandre Vaz Menezes Júnior, Mário Procópio de Imaizumi, Hugo |
author_role |
author |
author2 |
Santos, Flávio Augusto Portela Bittar, Carla Maris Machado Pires, Alexandre Vaz Menezes Júnior, Mário Procópio de Imaizumi, Hugo |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Guidi, Maria Teresa Santos, Flávio Augusto Portela Bittar, Carla Maris Machado Pires, Alexandre Vaz Menezes Júnior, Mário Procópio de Imaizumi, Hugo |
dc.subject.por.fl_str_mv |
farelo de glúten de milho farelo de soja proteína não-degradável no rúmen soja tostada uréia 5.04.00.00-2 Zootecnia |
topic |
farelo de glúten de milho farelo de soja proteína não-degradável no rúmen soja tostada uréia 5.04.00.00-2 Zootecnia |
description |
Five ruminally cannulated lactating dairy cows, producing 27 kg day-1 of milk, were used in a 5 x 5 Latin Square design. Diets contained different protein sources: control, urea, soybean meal, roasted soybeans and corn gluten meal. The control diet featured 13.4% crude protein, and the other diets 16.5%. Dry matter intake, milk production, milk fat content and yield, and feed efficiency were not affected by the treatments. Feeding roasted soybeans decreased milk protein content (p < 0.05). The treatments had no effect on the total tract digestibilities of dry matter, organic matter, starch and neutral detergent fiber; however, crude protein digestibility was reduced with the control and roasted soybeans diets (p < 0.05). Feeding urea increased plasma urea-N (p < 0.05). The treatments had no effects on plasma glucose concentration. |
publishDate |
2007 |
dc.date.none.fl_str_mv |
2007-12-14 |
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/570 10.4025/actascianimsci.v29i3.570 |
url |
https://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/570 |
identifier_str_mv |
10.4025/actascianimsci.v29i3.570 |
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/570/323 |
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 3 (2007); 325-331 Acta Scientiarum. Animal Sciences; v. 29 n. 3 (2007); 325-331 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_ |
1799315356333899776 |