Quality of the forage apparently consumed by beef calves in natural grassland under fertilization and oversown with cool season forage species
Autor(a) principal: | |
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Data de Publicação: | 2012 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1590/S1516-35982012000600007 http://hdl.handle.net/11449/30870 |
Resumo: | The objective of this study was to evaluate the chemical composition of the forage apparently consumed by steers in a natural grassland on region of Campanha, in Rio Grande do Sul, Brazil, subjected or not to different inputs: NP - natural pasture without inputs; FNP - fertilized natural pasture and INP - improved natural grassland with fertilization and over-seeded with cultivated winter species. Three Angus steers testers and a variable number of regulator animals per experimental unit were utilized in order to maintain 13 kg of DM/100 kg of live weight (LW) as forage allowance. One time at each season, hand plucking samples were performed along the daily grazing time simulating forage harvested by the animals. The collected samples after drying and grind were submitted to chemical analysis to determine the forage quality. Except in winter and spring, the values of neutral detergent fiber were higher than the critical value of 550 g/kg of DM, which could limit forage intake, demonstrating that the values of forage on offer provided (15.6; 13.7; 13.5; 15.8 kg of DM/100 kg of LW/day in summer, autumn, winter and spring, respectively) were not restrictive to intake. The oversowing of winter cultivated species or fertilization positively alter the degradable fiber content. The seasons had marked influence on the chemical composition of forage apparently consumed; positively increasing some fractions of forage chemical composition in the seasons in which native or cultivated winter species increased their participation. The forage chemical composition is the determining factor in animal performance in natural pasture. |
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Repositório Institucional da UNESP |
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spelling |
Quality of the forage apparently consumed by beef calves in natural grassland under fertilization and oversown with cool season forage speciesaverage daily weight gaingas in vitro digestibilityneutral detergent fiber corrected for ash and proteintotal digestible nutrientsThe objective of this study was to evaluate the chemical composition of the forage apparently consumed by steers in a natural grassland on region of Campanha, in Rio Grande do Sul, Brazil, subjected or not to different inputs: NP - natural pasture without inputs; FNP - fertilized natural pasture and INP - improved natural grassland with fertilization and over-seeded with cultivated winter species. Three Angus steers testers and a variable number of regulator animals per experimental unit were utilized in order to maintain 13 kg of DM/100 kg of live weight (LW) as forage allowance. One time at each season, hand plucking samples were performed along the daily grazing time simulating forage harvested by the animals. The collected samples after drying and grind were submitted to chemical analysis to determine the forage quality. Except in winter and spring, the values of neutral detergent fiber were higher than the critical value of 550 g/kg of DM, which could limit forage intake, demonstrating that the values of forage on offer provided (15.6; 13.7; 13.5; 15.8 kg of DM/100 kg of LW/day in summer, autumn, winter and spring, respectively) were not restrictive to intake. The oversowing of winter cultivated species or fertilization positively alter the degradable fiber content. The seasons had marked influence on the chemical composition of forage apparently consumed; positively increasing some fractions of forage chemical composition in the seasons in which native or cultivated winter species increased their participation. The forage chemical composition is the determining factor in animal performance in natural pasture.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Universidade Federal do Rio Grande do Sul (UFRGS) Faculdade de Agronomia Programa de Pós-Graduação em ZootecniaUniversidad de La República Del Uruguay Faculdad de AgronomíaUniversidade Estadual de São Paulo Programa de Pós-Graduação em ZootecniaUniversidade Federal do Rio Grande do Sul (UFRGS)Sociedade Brasileira de ZootecniaUniversidade Federal do Rio Grande do Sul (UFRGS)Universidad de La República Del UruguayUniversidade Estadual Paulista (Unesp)Elejalde, Denise Adelaide GomesNabinger, CarlosPascual, Mónica Graciela CadenazziFerreira, Eduardo TonetMissio, Regis Luis [UNESP]Kunrath, Taise RobinsonDevincenzi, ThaisCardoso, Raquel Rolim2014-05-20T15:18:23Z2014-05-20T15:18:23Z2012-06-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article1360-1368application/pdfhttp://dx.doi.org/10.1590/S1516-35982012000600007Revista Brasileira de Zootecnia. Sociedade Brasileira de Zootecnia, v. 41, n. 6, p. 1360-1368, 2012.1516-3598http://hdl.handle.net/11449/3087010.1590/S1516-35982012000600007S1516-35982012000600007S1516-35982012000600007.pdfSciELOreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengRevista Brasileira de Zootecnia0,337info:eu-repo/semantics/openAccess2023-10-15T06:08:24Zoai:repositorio.unesp.br:11449/30870Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T15:01:45.279295Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Quality of the forage apparently consumed by beef calves in natural grassland under fertilization and oversown with cool season forage species |
title |
Quality of the forage apparently consumed by beef calves in natural grassland under fertilization and oversown with cool season forage species |
spellingShingle |
Quality of the forage apparently consumed by beef calves in natural grassland under fertilization and oversown with cool season forage species Elejalde, Denise Adelaide Gomes average daily weight gain gas in vitro digestibility neutral detergent fiber corrected for ash and protein total digestible nutrients |
title_short |
Quality of the forage apparently consumed by beef calves in natural grassland under fertilization and oversown with cool season forage species |
title_full |
Quality of the forage apparently consumed by beef calves in natural grassland under fertilization and oversown with cool season forage species |
title_fullStr |
Quality of the forage apparently consumed by beef calves in natural grassland under fertilization and oversown with cool season forage species |
title_full_unstemmed |
Quality of the forage apparently consumed by beef calves in natural grassland under fertilization and oversown with cool season forage species |
title_sort |
Quality of the forage apparently consumed by beef calves in natural grassland under fertilization and oversown with cool season forage species |
author |
Elejalde, Denise Adelaide Gomes |
author_facet |
Elejalde, Denise Adelaide Gomes Nabinger, Carlos Pascual, Mónica Graciela Cadenazzi Ferreira, Eduardo Tonet Missio, Regis Luis [UNESP] Kunrath, Taise Robinson Devincenzi, Thais Cardoso, Raquel Rolim |
author_role |
author |
author2 |
Nabinger, Carlos Pascual, Mónica Graciela Cadenazzi Ferreira, Eduardo Tonet Missio, Regis Luis [UNESP] Kunrath, Taise Robinson Devincenzi, Thais Cardoso, Raquel Rolim |
author2_role |
author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Federal do Rio Grande do Sul (UFRGS) Universidad de La República Del Uruguay Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Elejalde, Denise Adelaide Gomes Nabinger, Carlos Pascual, Mónica Graciela Cadenazzi Ferreira, Eduardo Tonet Missio, Regis Luis [UNESP] Kunrath, Taise Robinson Devincenzi, Thais Cardoso, Raquel Rolim |
dc.subject.por.fl_str_mv |
average daily weight gain gas in vitro digestibility neutral detergent fiber corrected for ash and protein total digestible nutrients |
topic |
average daily weight gain gas in vitro digestibility neutral detergent fiber corrected for ash and protein total digestible nutrients |
description |
The objective of this study was to evaluate the chemical composition of the forage apparently consumed by steers in a natural grassland on region of Campanha, in Rio Grande do Sul, Brazil, subjected or not to different inputs: NP - natural pasture without inputs; FNP - fertilized natural pasture and INP - improved natural grassland with fertilization and over-seeded with cultivated winter species. Three Angus steers testers and a variable number of regulator animals per experimental unit were utilized in order to maintain 13 kg of DM/100 kg of live weight (LW) as forage allowance. One time at each season, hand plucking samples were performed along the daily grazing time simulating forage harvested by the animals. The collected samples after drying and grind were submitted to chemical analysis to determine the forage quality. Except in winter and spring, the values of neutral detergent fiber were higher than the critical value of 550 g/kg of DM, which could limit forage intake, demonstrating that the values of forage on offer provided (15.6; 13.7; 13.5; 15.8 kg of DM/100 kg of LW/day in summer, autumn, winter and spring, respectively) were not restrictive to intake. The oversowing of winter cultivated species or fertilization positively alter the degradable fiber content. The seasons had marked influence on the chemical composition of forage apparently consumed; positively increasing some fractions of forage chemical composition in the seasons in which native or cultivated winter species increased their participation. The forage chemical composition is the determining factor in animal performance in natural pasture. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-06-01 2014-05-20T15:18:23Z 2014-05-20T15:18:23Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1590/S1516-35982012000600007 Revista Brasileira de Zootecnia. Sociedade Brasileira de Zootecnia, v. 41, n. 6, p. 1360-1368, 2012. 1516-3598 http://hdl.handle.net/11449/30870 10.1590/S1516-35982012000600007 S1516-35982012000600007 S1516-35982012000600007.pdf |
url |
http://dx.doi.org/10.1590/S1516-35982012000600007 http://hdl.handle.net/11449/30870 |
identifier_str_mv |
Revista Brasileira de Zootecnia. Sociedade Brasileira de Zootecnia, v. 41, n. 6, p. 1360-1368, 2012. 1516-3598 10.1590/S1516-35982012000600007 S1516-35982012000600007 S1516-35982012000600007.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Revista Brasileira de Zootecnia 0,337 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
1360-1368 application/pdf |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Zootecnia |
publisher.none.fl_str_mv |
Sociedade Brasileira de Zootecnia |
dc.source.none.fl_str_mv |
SciELO reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
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1808128448836665344 |