Composi??o qu?mico bromatol?gica do capim Tifton 85 e sua rela??o com os teores de clorofila
Autor(a) principal: | |
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Data de Publicação: | 2009 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Biblioteca Digital de Teses e Dissertações da UFRRJ |
Texto Completo: | https://tede.ufrrj.br/jspui/handle/tede/597 |
Resumo: | The purpose of this work was to evaluate the nutritional value of Tifton 85 (Cynodon spp) in response to nitrogen fertilization, in terms of bromatological composition and the nitrogen and carbohydrate fractions as defined by the Cornell University model. It also assessed the performace of a chlorophyll meter, as an indirect estimate of green dry matter production, and chemical bromatological traits fo the grass. This study was carried out during the period of november 2008 to january 2009, on Haplic Planosol at the campus of the Rural Federal University of Rio de Janeiro. Experimental design was a randomized block desing with four repetitions. Main treatments consisted of N rates allocated in the plots and cutting number were allocated in the sbplots. There are three levels of N soil : low N; represented by soil N, medium N: 75 N / ha / cut, and high N: 150 kg N / ha / cut. Herbage harvested twice, the first on November 30 and the second 29 days later. Cutting dates were determined according to data from canopy light interception. In the first study results showed that N rates increased green dry matter and the crude protein CP per cent in the forage and decreased asid detergent fibrous fraction contents. It was also verified the feasibility of using a chlorophyll meter as a probe for CP content and forage availability. In a second study it was verified that N fertilization showed no consistent results in regard to crude protein fractions with the sole exception of C fraction (%CP), that increased with increasing N availability. |
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Rossiello, Roberto Oscar Pereyra562.215.927-04http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4788100H6Morenz, Mirton Jos? Frota033.667.877-08http://lattes.cnpq.br/8377813112549146104.755.847-59http://lattes.cnpq.br/9560631911725654Silva, Rosani Val?ria Marcelina Matoso2016-04-28T14:59:49Z2011-02-152009-12-16SILVA, Rosani Val?ria Marcelina Matoso. Composi??o qu?mico bromatol?gica do capim Tifton 85 e sua rela??o com os teores de clorofila. 2009. 50 f. Disserta??o (Mestrado em Zootecnia) - Instituto de Zootecnia, Universidade Federal Rural do Rio de Janeiro, Serop?dica - RJ, 2009.https://tede.ufrrj.br/jspui/handle/tede/597The purpose of this work was to evaluate the nutritional value of Tifton 85 (Cynodon spp) in response to nitrogen fertilization, in terms of bromatological composition and the nitrogen and carbohydrate fractions as defined by the Cornell University model. It also assessed the performace of a chlorophyll meter, as an indirect estimate of green dry matter production, and chemical bromatological traits fo the grass. This study was carried out during the period of november 2008 to january 2009, on Haplic Planosol at the campus of the Rural Federal University of Rio de Janeiro. Experimental design was a randomized block desing with four repetitions. Main treatments consisted of N rates allocated in the plots and cutting number were allocated in the sbplots. There are three levels of N soil : low N; represented by soil N, medium N: 75 N / ha / cut, and high N: 150 kg N / ha / cut. Herbage harvested twice, the first on November 30 and the second 29 days later. Cutting dates were determined according to data from canopy light interception. In the first study results showed that N rates increased green dry matter and the crude protein CP per cent in the forage and decreased asid detergent fibrous fraction contents. It was also verified the feasibility of using a chlorophyll meter as a probe for CP content and forage availability. In a second study it was verified that N fertilization showed no consistent results in regard to crude protein fractions with the sole exception of C fraction (%CP), that increased with increasing N availability.Objetivou-se com este experimento avaliar o valor nutritivo do capim Tifton-85 (Cynodon spp) em resposta ? aplica??o de diferentes n?veis de nitrog?nio (N), com base na composi??o qu?mico bromatol?gica e nas fra??es nitrogenadas e de carboidratos, utilizando-se o sistema desenvolvido na Universidade de Cornell (The Cornell Net Carbohydrate and Protein System - CNCPS). Avaliou-se tamb?m o desempenho de um clorofilometro, como estimador indireto das disponibilidades de forragem, e das caracter?sticas qu?mico bromatol?gicas do capim. O experimento foi realizado durante o per?odo novembro de 2008 a janeiro de 2009, no campus da Universidade Federal Rural do Rio de Janeiro, utilizando-se um Planossolo H?plico. Os tratamentos constitu?ram-se de doses de N, na forma de ur?ia e de n?mero de cortes. Foram definidos tr?s n?veis de N: baixo, representado pelo N do solo; m?dio: 75 de N/ha/corte; e alto: 150 kg de N/ha/corte. Foram realizados dois cortes, o primeiro em 30/11/2008 e o segundo 29 dias ap?s. As datas dos cortes foram determinadas de acordo com dados de intercepta??o luminosa dos doss?is. O delineamento experimental foi em blocos casualizados, com quatro repeti??es, em esquema de parcelas subdivididas, com as doses de N alocadas nas parcelas e a seq??ncia de cortes na subparcela. No primeiro estudo, verificou-se que a aduba??o nitrogenada aumentou a produ??o de massa verde seca e os teores de PB da forragem e reduziu os teores das fra??es fibrosas em detergente ?cido, mostrando ainda a factibilidade do uso do clorofil?metro como um estimador indireto da produ??o de forragem e dos teores de PB na mesma. No segundo estudo, verificou-se que a aduba??o nitrogenada n?o apresentou resultados consistentes quando relacionada ?s fra??es prot?icas e nitrogenadas, com a exce??o da fra??o C (%PB) que respondeu positivamente.Made available in DSpace on 2016-04-28T14:59:49Z (GMT). No. of bitstreams: 1 2009 - Rosani Val?ria Marcelina Matoso Silva.pdf: 2493800 bytes, checksum: c274b76a31f58fe821a3f98f2cabee11 (MD5) Previous issue date: 2009-12-16Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico - CNPqapplication/pdfhttps://tede.ufrrj.br/retrieve/57074/2009%20-%20Rosani%20Val%c3%a9ria%20Marcelina%20Matoso%20Silva.pdf.jpgporUniversidade Federal Rural do Rio de JaneiroPrograma de P?s-Gradua??o em ZootecniaUFRRJBrasilInstituto de Zootecniaaduba??o nitrogenadaclorofil?metroCynodon sppfra??es de carboidratosfra??es nitrogenadaschlorophyll meter Nitrogen fertilizationprotein fractiontotal carboydrate fractionsZootecniaComposi??o qu?mico bromatol?gica do capim Tifton 85 e sua rela??o com os teores de clorofilainfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisinfo:eu-repo/semantics/openAccessreponame:Biblioteca Digital de Teses e Dissertações da UFRRJinstname:Universidade Federal Rural do Rio de Janeiro (UFRRJ)instacron:UFRRJTHUMBNAIL2009 - Rosani Val?ria Marcelina Matoso Silva.pdf.jpg2009 - Rosani Val?ria Marcelina Matoso Silva.pdf.jpgimage/jpeg3471http://localhost:8080/tede/bitstream/tede/597/17/2009+-+Rosani+Val%C3%A9ria+Marcelina+Matoso+Silva.pdf.jpg07d01f18e5c453ccb459002de084b6abMD517TEXT2009 - Rosani Val?ria Marcelina Matoso Silva.pdf.txt2009 - Rosani Val?ria Marcelina Matoso Silva.pdf.txttext/plain96253http://localhost:8080/tede/bitstream/tede/597/16/2009+-+Rosani+Val%C3%A9ria+Marcelina+Matoso+Silva.pdf.txtad88bb389ba48a11c4a2a4817f951d2cMD516ORIGINAL2009 - Rosani Val?ria Marcelina Matoso Silva.pdf2009 - Rosani Val?ria Marcelina Matoso Silva.pdfapplication/pdf2493985http://localhost:8080/tede/bitstream/tede/597/1/2009+-+Rosani+Val%C3%A9ria+Marcelina+Matoso+Silva.pdf5cd3b9e1163c8318ec7bcd59afc24150MD51tede/5972022-06-22 12:48:42.935oai:localhost:tede/597Biblioteca Digital de Teses e Dissertaçõeshttps://tede.ufrrj.br/PUBhttps://tede.ufrrj.br/oai/requestbibliot@ufrrj.br||bibliot@ufrrj.bropendoar:2022-06-22T15:48:42Biblioteca Digital de Teses e Dissertações da UFRRJ - Universidade Federal Rural do Rio de Janeiro (UFRRJ)false |
dc.title.por.fl_str_mv |
Composi??o qu?mico bromatol?gica do capim Tifton 85 e sua rela??o com os teores de clorofila |
title |
Composi??o qu?mico bromatol?gica do capim Tifton 85 e sua rela??o com os teores de clorofila |
spellingShingle |
Composi??o qu?mico bromatol?gica do capim Tifton 85 e sua rela??o com os teores de clorofila Silva, Rosani Val?ria Marcelina Matoso aduba??o nitrogenada clorofil?metro Cynodon spp fra??es de carboidratos fra??es nitrogenadas chlorophyll meter Nitrogen fertilization protein fraction total carboydrate fractions Zootecnia |
title_short |
Composi??o qu?mico bromatol?gica do capim Tifton 85 e sua rela??o com os teores de clorofila |
title_full |
Composi??o qu?mico bromatol?gica do capim Tifton 85 e sua rela??o com os teores de clorofila |
title_fullStr |
Composi??o qu?mico bromatol?gica do capim Tifton 85 e sua rela??o com os teores de clorofila |
title_full_unstemmed |
Composi??o qu?mico bromatol?gica do capim Tifton 85 e sua rela??o com os teores de clorofila |
title_sort |
Composi??o qu?mico bromatol?gica do capim Tifton 85 e sua rela??o com os teores de clorofila |
author |
Silva, Rosani Val?ria Marcelina Matoso |
author_facet |
Silva, Rosani Val?ria Marcelina Matoso |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Rossiello, Roberto Oscar Pereyra |
dc.contributor.advisor1ID.fl_str_mv |
562.215.927-04 |
dc.contributor.advisor1Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4788100H6 |
dc.contributor.advisor-co1.fl_str_mv |
Morenz, Mirton Jos? Frota |
dc.contributor.advisor-co1ID.fl_str_mv |
033.667.877-08 |
dc.contributor.advisor-co1Lattes.fl_str_mv |
http://lattes.cnpq.br/8377813112549146 |
dc.contributor.authorID.fl_str_mv |
104.755.847-59 |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/9560631911725654 |
dc.contributor.author.fl_str_mv |
Silva, Rosani Val?ria Marcelina Matoso |
contributor_str_mv |
Rossiello, Roberto Oscar Pereyra Morenz, Mirton Jos? Frota |
dc.subject.por.fl_str_mv |
aduba??o nitrogenada clorofil?metro Cynodon spp fra??es de carboidratos fra??es nitrogenadas |
topic |
aduba??o nitrogenada clorofil?metro Cynodon spp fra??es de carboidratos fra??es nitrogenadas chlorophyll meter Nitrogen fertilization protein fraction total carboydrate fractions Zootecnia |
dc.subject.eng.fl_str_mv |
chlorophyll meter Nitrogen fertilization protein fraction total carboydrate fractions |
dc.subject.cnpq.fl_str_mv |
Zootecnia |
description |
The purpose of this work was to evaluate the nutritional value of Tifton 85 (Cynodon spp) in response to nitrogen fertilization, in terms of bromatological composition and the nitrogen and carbohydrate fractions as defined by the Cornell University model. It also assessed the performace of a chlorophyll meter, as an indirect estimate of green dry matter production, and chemical bromatological traits fo the grass. This study was carried out during the period of november 2008 to january 2009, on Haplic Planosol at the campus of the Rural Federal University of Rio de Janeiro. Experimental design was a randomized block desing with four repetitions. Main treatments consisted of N rates allocated in the plots and cutting number were allocated in the sbplots. There are three levels of N soil : low N; represented by soil N, medium N: 75 N / ha / cut, and high N: 150 kg N / ha / cut. Herbage harvested twice, the first on November 30 and the second 29 days later. Cutting dates were determined according to data from canopy light interception. In the first study results showed that N rates increased green dry matter and the crude protein CP per cent in the forage and decreased asid detergent fibrous fraction contents. It was also verified the feasibility of using a chlorophyll meter as a probe for CP content and forage availability. In a second study it was verified that N fertilization showed no consistent results in regard to crude protein fractions with the sole exception of C fraction (%CP), that increased with increasing N availability. |
publishDate |
2009 |
dc.date.issued.fl_str_mv |
2009-12-16 |
dc.date.available.fl_str_mv |
2011-02-15 |
dc.date.accessioned.fl_str_mv |
2016-04-28T14:59:49Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
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masterThesis |
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publishedVersion |
dc.identifier.citation.fl_str_mv |
SILVA, Rosani Val?ria Marcelina Matoso. Composi??o qu?mico bromatol?gica do capim Tifton 85 e sua rela??o com os teores de clorofila. 2009. 50 f. Disserta??o (Mestrado em Zootecnia) - Instituto de Zootecnia, Universidade Federal Rural do Rio de Janeiro, Serop?dica - RJ, 2009. |
dc.identifier.uri.fl_str_mv |
https://tede.ufrrj.br/jspui/handle/tede/597 |
identifier_str_mv |
SILVA, Rosani Val?ria Marcelina Matoso. Composi??o qu?mico bromatol?gica do capim Tifton 85 e sua rela??o com os teores de clorofila. 2009. 50 f. Disserta??o (Mestrado em Zootecnia) - Instituto de Zootecnia, Universidade Federal Rural do Rio de Janeiro, Serop?dica - RJ, 2009. |
url |
https://tede.ufrrj.br/jspui/handle/tede/597 |
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por |
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por |
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openAccess |
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Universidade Federal Rural do Rio de Janeiro |
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Programa de P?s-Gradua??o em Zootecnia |
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UFRRJ |
dc.publisher.country.fl_str_mv |
Brasil |
dc.publisher.department.fl_str_mv |
Instituto de Zootecnia |
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Universidade Federal Rural do Rio de Janeiro |
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