Determination of protein and carbohydrate fractions of Cynodon grasses in different cut age

Detalhes bibliográficos
Autor(a) principal: Gonçalves, Geane Dias
Data de Publicação: 2008
Outros Autores: Santos, Geraldo Tadeu dos, Jobim, Clóves Cabreira, Cecato, Ulysses, Damasceno, Júlio César, Branco, Antônio Ferriani, Silva, Karina Toledo da
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/2590
Resumo: Three Cynodon grasses (Poaceae) (Tifton 85, Tifton 44 and Coast-cross) harvested at ages 21, 42 and 63 days in the summer were evaluated for protein and carbohydrate fractions composition. Crude protein was divided into 5 fractions: A (non-protein nitrogen), B1 (soluble protein with fast rumen degradability), B2 (insoluble protein with intermediate rumen degradability), B3 (insoluble protein with slow rumen degradability) and C (indigestible protein). Carbohydrates were divided into 3 fractions: A + B1 (fast and intermediate rumen digestibility), B2 (slow rumen digestibility) and C (indigestible fiber). Experimental design consisted of a split-plot (grasses as plots and cut age as sub-plots) with three repetitions. Cut age was analyzed by regression and models were chosen on the analysis of identity. There were no differences (p> 0,05) among grasses with regard to protein and carbohydrate fractions composition. C fraction of protein showed linear increase (p < 0.05) with cut age, ranging from 22.77 to 25.79%. A + B1 fraction decreased (p < 0.05) from 16.27 to 7.03% and B2 and C fractions increased (p < 0.05) from 76.86 to 79.42% and 6.83 to 13.55%, respectively, between cuts at 21 and 63 days old.
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spelling Determination of protein and carbohydrate fractions of Cynodon grasses in different cut ageDeterminação das frações de proteína e de carboidratos de gramíneas do gênero Cynodon em idades ao corteCynodonligninaproteínaTifton 44Tifton 855.04.00.00-2 ZootecniaThree Cynodon grasses (Poaceae) (Tifton 85, Tifton 44 and Coast-cross) harvested at ages 21, 42 and 63 days in the summer were evaluated for protein and carbohydrate fractions composition. Crude protein was divided into 5 fractions: A (non-protein nitrogen), B1 (soluble protein with fast rumen degradability), B2 (insoluble protein with intermediate rumen degradability), B3 (insoluble protein with slow rumen degradability) and C (indigestible protein). Carbohydrates were divided into 3 fractions: A + B1 (fast and intermediate rumen digestibility), B2 (slow rumen digestibility) and C (indigestible fiber). Experimental design consisted of a split-plot (grasses as plots and cut age as sub-plots) with three repetitions. Cut age was analyzed by regression and models were chosen on the analysis of identity. There were no differences (p> 0,05) among grasses with regard to protein and carbohydrate fractions composition. C fraction of protein showed linear increase (p < 0.05) with cut age, ranging from 22.77 to 25.79%. A + B1 fraction decreased (p < 0.05) from 16.27 to 7.03% and B2 and C fractions increased (p < 0.05) from 76.86 to 79.42% and 6.83 to 13.55%, respectively, between cuts at 21 and 63 days old.O experimento teve por objetivos quantificar as frações de proteína e de carboidratos de três cultivares de Cynodon (Poaceae) (Tifton 85, Tifton 44 e Coast-cross), colhidos com idades ao corte de 21, 42 e 63 dias no verão. Para a proteína bruta (PB), determinou-se a fração A (nitrogênio não-protéico), fração B1 (proteína solúvel de rápida degradabilidade no rúmen), fração B2 (proteína insolúvel com taxa de degradação intermediária), fração B3 (proteína com taxa de degradação lenta) e fração C (proteína indigestível). Para os carboidratos, determinaram-se as frações A+B1 (frações de rápida e média degradação ruminal), fração B2 (fração lentamente degradada no rúmen) e a fração C (carboidratos não digeríveis no rúmen). Utilizou-se o delineamento experimental de parcelas subdivididas (cultivares como parcelas e idade ao corte como subparcelas) com três repetições. Para o fator idade ao corte, foi usada regressão, e os modelos foram escolhidos baseados na análise de identidade. Não houve diferença (P > 0,05) entre os cultivares avaliados, tanto para as frações de PB, como de carboidratos. As frações de PB apresentaram poucas diferenças com o aumento na idade ao corte. Porém, a fração C apresentou incremento linear (P < 0,05), à medida que se alongou a idade ao corte, com médias de 22,77 a 25,79%. Houve acréscimo e decréscimo linear (P < 0,05) para todas as frações de carboidratos, apresentando decréscimo de 16,27 a 7,03% para as frações A+B1 e acréscimo para as frações B2 e C de 76,86 a 79,42% e 6,83 a 13,55%, respectivamente, para 21 e 63 dias de idade ao corte.Editora da Universidade Estadual de Maringá2008-05-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/259010.4025/actascianimsci.v23i0.2590Acta Scientiarum. Animal Sciences; Vol 23 (2001); 789-794Acta Scientiarum. Animal Sciences; v. 23 (2001); 789-7941807-86721806-2636reponame:Acta Scientiarum. Animal Sciences (Online)instname:Universidade Estadual de Maringá (UEM)instacron:UEMporhttps://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/2590/2147Gonçalves, Geane DiasSantos, Geraldo Tadeu dosJobim, Clóves CabreiraCecato, UlyssesDamasceno, Júlio CésarBranco, Antônio FerrianiSilva, Karina Toledo dainfo:eu-repo/semantics/openAccess2024-05-17T13:03:46Zoai:periodicos.uem.br/ojs:article/2590Revistahttp://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:2024-05-17T13:03:46Acta Scientiarum. Animal Sciences (Online) - Universidade Estadual de Maringá (UEM)false
dc.title.none.fl_str_mv Determination of protein and carbohydrate fractions of Cynodon grasses in different cut age
Determinação das frações de proteína e de carboidratos de gramíneas do gênero Cynodon em idades ao corte
title Determination of protein and carbohydrate fractions of Cynodon grasses in different cut age
spellingShingle Determination of protein and carbohydrate fractions of Cynodon grasses in different cut age
Gonçalves, Geane Dias
Cynodon
lignina
proteína
Tifton 44
Tifton 85
5.04.00.00-2 Zootecnia
title_short Determination of protein and carbohydrate fractions of Cynodon grasses in different cut age
title_full Determination of protein and carbohydrate fractions of Cynodon grasses in different cut age
title_fullStr Determination of protein and carbohydrate fractions of Cynodon grasses in different cut age
title_full_unstemmed Determination of protein and carbohydrate fractions of Cynodon grasses in different cut age
title_sort Determination of protein and carbohydrate fractions of Cynodon grasses in different cut age
author Gonçalves, Geane Dias
author_facet Gonçalves, Geane Dias
Santos, Geraldo Tadeu dos
Jobim, Clóves Cabreira
Cecato, Ulysses
Damasceno, Júlio César
Branco, Antônio Ferriani
Silva, Karina Toledo da
author_role author
author2 Santos, Geraldo Tadeu dos
Jobim, Clóves Cabreira
Cecato, Ulysses
Damasceno, Júlio César
Branco, Antônio Ferriani
Silva, Karina Toledo da
author2_role author
author
author
author
author
author
dc.contributor.author.fl_str_mv Gonçalves, Geane Dias
Santos, Geraldo Tadeu dos
Jobim, Clóves Cabreira
Cecato, Ulysses
Damasceno, Júlio César
Branco, Antônio Ferriani
Silva, Karina Toledo da
dc.subject.por.fl_str_mv Cynodon
lignina
proteína
Tifton 44
Tifton 85
5.04.00.00-2 Zootecnia
topic Cynodon
lignina
proteína
Tifton 44
Tifton 85
5.04.00.00-2 Zootecnia
description Three Cynodon grasses (Poaceae) (Tifton 85, Tifton 44 and Coast-cross) harvested at ages 21, 42 and 63 days in the summer were evaluated for protein and carbohydrate fractions composition. Crude protein was divided into 5 fractions: A (non-protein nitrogen), B1 (soluble protein with fast rumen degradability), B2 (insoluble protein with intermediate rumen degradability), B3 (insoluble protein with slow rumen degradability) and C (indigestible protein). Carbohydrates were divided into 3 fractions: A + B1 (fast and intermediate rumen digestibility), B2 (slow rumen digestibility) and C (indigestible fiber). Experimental design consisted of a split-plot (grasses as plots and cut age as sub-plots) with three repetitions. Cut age was analyzed by regression and models were chosen on the analysis of identity. There were no differences (p> 0,05) among grasses with regard to protein and carbohydrate fractions composition. C fraction of protein showed linear increase (p < 0.05) with cut age, ranging from 22.77 to 25.79%. A + B1 fraction decreased (p < 0.05) from 16.27 to 7.03% and B2 and C fractions increased (p < 0.05) from 76.86 to 79.42% and 6.83 to 13.55%, respectively, between cuts at 21 and 63 days old.
publishDate 2008
dc.date.none.fl_str_mv 2008-05-09
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/2590
10.4025/actascianimsci.v23i0.2590
url https://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/2590
identifier_str_mv 10.4025/actascianimsci.v23i0.2590
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/2590/2147
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 23 (2001); 789-794
Acta Scientiarum. Animal Sciences; v. 23 (2001); 789-794
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
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