In situ degradability of genus Cynodon grasses with or without nitrogen application
Autor(a) principal: | |
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Data de Publicação: | 2008 |
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/4327 |
Resumo: | The aim of this work was to evaluate in situ degradability of dry matter (DM), crude protein (CP), organic matter (OM) and cell wall (M) of three grasses from genus Cynodon: Tifton 44 (Cynodon dactylon (L) Pers) (T44), Tifton 85 (Cynodon spp) (T85), Estrela do Porto Rico (Cynodon nlemfuensis Vanderyst (L) Pers) (PR), with 400kg N/ha or without nitrogen application in three cows with rumen fistulas. Four cuts were performed at a 35-day interval at approximately 10cm from the soil surface. Incubation time consisted of 6, 12, 24, 48 and 96 hours respectively. Degradability rate (c) did not differ between grasses and nitrogen applications. The effective degradability of DM (EDDM) and OM (EDOM) was not affected by nitrogen applications. PR and T44 EDDM, estimated through 5%/h passage rate, was higher than that of T85, though PR potentially digestible fraction (b) was the smallest. T85 had the smallest values for crude protein effective degradability (CPED) and this same grass had the largest values for fraction “b” of CP. The grasses did not differ for effective degradability from cell wall (EDCW) at 5%/h and 8%/h. T44 showed statistical difference (p≤0,05) in response to nitrogen application. T44 and T85 grasses had larger fraction values than PR. |
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In situ degradability of genus Cynodon grasses with or without nitrogen applicationDegradabilidade in situ de gramíneas do gênero Cynodon submetidas ou não a adubação nitrogenadadegradabilidade da matéria secadegradabilidade da proteína brutadegradabilidade da matéria orgânicadegradabilidade da FDNvaca5.04.00.00-2 ZootecniaThe aim of this work was to evaluate in situ degradability of dry matter (DM), crude protein (CP), organic matter (OM) and cell wall (M) of three grasses from genus Cynodon: Tifton 44 (Cynodon dactylon (L) Pers) (T44), Tifton 85 (Cynodon spp) (T85), Estrela do Porto Rico (Cynodon nlemfuensis Vanderyst (L) Pers) (PR), with 400kg N/ha or without nitrogen application in three cows with rumen fistulas. Four cuts were performed at a 35-day interval at approximately 10cm from the soil surface. Incubation time consisted of 6, 12, 24, 48 and 96 hours respectively. Degradability rate (c) did not differ between grasses and nitrogen applications. The effective degradability of DM (EDDM) and OM (EDOM) was not affected by nitrogen applications. PR and T44 EDDM, estimated through 5%/h passage rate, was higher than that of T85, though PR potentially digestible fraction (b) was the smallest. T85 had the smallest values for crude protein effective degradability (CPED) and this same grass had the largest values for fraction “b” of CP. The grasses did not differ for effective degradability from cell wall (EDCW) at 5%/h and 8%/h. T44 showed statistical difference (p≤0,05) in response to nitrogen application. T44 and T85 grasses had larger fraction values than PR.Avaliou-se a degradabilidade in situ da matéria seca (MS), proteína bruta (PB), matéria orgânica (MO) e parede celular (PC) de três gramíneas do gênero Cynodon: Tifton 44 (Cynodon dactylon (L) Pers) (T44), Tifton 85 (Cynodon spp) (T85), Estrela de Porto Rico (Cynodon nlemfuensis Vanderyst (L) Pers) (PR), com (400kg N/ha) ou sem adubação, utilizando-se 3 vacas com fístulas ruminais. Foram realizados 4 cortes a cada 35 dias, com um nível de, aproximadamente, 10cm do nível do solo. O tempo de incubação foi de 6, 12, 24, 48 e 96 horas. A taxa de degradação (c) não diferiu entre as gramíneas e na aplicação de nitrogênio. As degradabilidades efetivas da MS (DEMS) e MO (DEMO) não diferiram para o nível de nitrogênio aplicado. A DEMS, estimada com a taxa de passagem de 5%/h, da PR e da T44 foi superior à da T85. A fração potencialmente degradável (b) da PR porém, foi de menor valor. A T85 apresentou os menores valores para a digestibilidade efetiva da proteína bruta (DEPB), mas registrou o maior valor para a fração “b”. As gramíneas não diferiram para a digestibilidade efetiva da parede celular (DEPC) a 5 e 8%/h. A T44 obteve diferença estatística (p≤0,05) em resposta à aplicação de nitrogênio. As gramíneas T44 e T85 foram superiores à PR em relação à fração “b”.Editora da Universidade Estadual de Maringá2008-07-14info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/432710.4025/actascianimsci.v21i0.4327Acta Scientiarum. Animal Sciences; Vol 21 (1999); 657-663Acta Scientiarum. Animal Sciences; v. 21 (1999); 657-6631807-86721806-2636reponame:Acta Scientiarum. Animal Sciences (Online)instname:Universidade Estadual de Maringá (UEM)instacron:UEMporhttps://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/4327/2964Assis, Marina Aparecida deSantos, Geraldo Tadeu dosCecato, UlyssesDamasceno, Júlio CésarPetit, Hélène V.Bett, VanderleiGomes, Luiz HipólitoDaniel, Merciainfo:eu-repo/semantics/openAccess2024-05-17T13:03:57Zoai:periodicos.uem.br/ojs:article/4327Revistahttp://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:2024-05-17T13:03:57Acta Scientiarum. Animal Sciences (Online) - Universidade Estadual de Maringá (UEM)false |
dc.title.none.fl_str_mv |
In situ degradability of genus Cynodon grasses with or without nitrogen application Degradabilidade in situ de gramíneas do gênero Cynodon submetidas ou não a adubação nitrogenada |
title |
In situ degradability of genus Cynodon grasses with or without nitrogen application |
spellingShingle |
In situ degradability of genus Cynodon grasses with or without nitrogen application Assis, Marina Aparecida de degradabilidade da matéria seca degradabilidade da proteína bruta degradabilidade da matéria orgânica degradabilidade da FDN vaca 5.04.00.00-2 Zootecnia |
title_short |
In situ degradability of genus Cynodon grasses with or without nitrogen application |
title_full |
In situ degradability of genus Cynodon grasses with or without nitrogen application |
title_fullStr |
In situ degradability of genus Cynodon grasses with or without nitrogen application |
title_full_unstemmed |
In situ degradability of genus Cynodon grasses with or without nitrogen application |
title_sort |
In situ degradability of genus Cynodon grasses with or without nitrogen application |
author |
Assis, Marina Aparecida de |
author_facet |
Assis, Marina Aparecida de Santos, Geraldo Tadeu dos Cecato, Ulysses Damasceno, Júlio César Petit, Hélène V. Bett, Vanderlei Gomes, Luiz Hipólito Daniel, Mercia |
author_role |
author |
author2 |
Santos, Geraldo Tadeu dos Cecato, Ulysses Damasceno, Júlio César Petit, Hélène V. Bett, Vanderlei Gomes, Luiz Hipólito Daniel, Mercia |
author2_role |
author author author author author author author |
dc.contributor.author.fl_str_mv |
Assis, Marina Aparecida de Santos, Geraldo Tadeu dos Cecato, Ulysses Damasceno, Júlio César Petit, Hélène V. Bett, Vanderlei Gomes, Luiz Hipólito Daniel, Mercia |
dc.subject.por.fl_str_mv |
degradabilidade da matéria seca degradabilidade da proteína bruta degradabilidade da matéria orgânica degradabilidade da FDN vaca 5.04.00.00-2 Zootecnia |
topic |
degradabilidade da matéria seca degradabilidade da proteína bruta degradabilidade da matéria orgânica degradabilidade da FDN vaca 5.04.00.00-2 Zootecnia |
description |
The aim of this work was to evaluate in situ degradability of dry matter (DM), crude protein (CP), organic matter (OM) and cell wall (M) of three grasses from genus Cynodon: Tifton 44 (Cynodon dactylon (L) Pers) (T44), Tifton 85 (Cynodon spp) (T85), Estrela do Porto Rico (Cynodon nlemfuensis Vanderyst (L) Pers) (PR), with 400kg N/ha or without nitrogen application in three cows with rumen fistulas. Four cuts were performed at a 35-day interval at approximately 10cm from the soil surface. Incubation time consisted of 6, 12, 24, 48 and 96 hours respectively. Degradability rate (c) did not differ between grasses and nitrogen applications. The effective degradability of DM (EDDM) and OM (EDOM) was not affected by nitrogen applications. PR and T44 EDDM, estimated through 5%/h passage rate, was higher than that of T85, though PR potentially digestible fraction (b) was the smallest. T85 had the smallest values for crude protein effective degradability (CPED) and this same grass had the largest values for fraction “b” of CP. The grasses did not differ for effective degradability from cell wall (EDCW) at 5%/h and 8%/h. T44 showed statistical difference (p≤0,05) in response to nitrogen application. T44 and T85 grasses had larger fraction values than PR. |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008-07-14 |
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/4327 10.4025/actascianimsci.v21i0.4327 |
url |
https://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/4327 |
identifier_str_mv |
10.4025/actascianimsci.v21i0.4327 |
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/4327/2964 |
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 21 (1999); 657-663 Acta Scientiarum. Animal Sciences; v. 21 (1999); 657-663 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_ |
1799315359079071744 |