Recria de bezerras de corte sob pastejo exclusivo em azevém ou em azevém consorciado com leguminosas
Main Author: | |
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Publication Date: | 2017 |
Format: | Master thesis |
Language: | por |
Source: | Manancial - Repositório Digital da UFSM |
Download full: | http://repositorio.ufsm.br/handle/1/11566 |
Summary: | The ingestive behavior and the ingestion of forage by beef heifers were evaluated in the vegetative and flowering stages of ryegrass (Lolium multiflorum L.). The treatments were: grazing exclusively on ryegrass, ryegrass intercropping with vetch (Vicia sativa L.) or red clover (Trifolium pratense L.). The grazing method was continuous with variable stocking. The experimental design was the completely randomized with repeated measures arrangement, three forage systems and three repetitions of area. For evaluations of forage intake, chromic oxide was used as an indicator of fecal production and heifers were considered as experimental units. The forage mass, allowance of forage and allowance of leaf blades were, 1596.2 kg / ha DM, 12 kg DM / 100 kg BW and 4.5 kg DM / 100 kg BW respectively. The participation of vetch and red clover in the forage mass corresponded to 13.2% and 4.5% respectively in the vegetative stage. In the flowering stage, the participation of legumes corresponded to 0.6%. In forage as grazed, crude protein (17.8%), neutral detergent fiber (55.8%) and in situ dry matter digestibility (76.7%) were similar among forage systems. These variables differed between phenological stages of ryegrass. The grazing time differed between the systems being superior in the system with vetch. The forage intake rate in the clover system was higher than the other systems. The dry matter intake was similar among forage systems and was higher in the vegetative stage compared to the flowering stage. The average daily gain was similar among forage systems and phenological stages. With little participation of red clover or vetch in the herbage mass intercropped with ryegrass, it does not modify the intake of dry matter, crude protein and neutral detergent fiber, resulting in the same performance of beef heifers. |
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2017-08-24T12:09:09Z2017-08-24T12:09:09Z2017-02-23http://repositorio.ufsm.br/handle/1/11566The ingestive behavior and the ingestion of forage by beef heifers were evaluated in the vegetative and flowering stages of ryegrass (Lolium multiflorum L.). The treatments were: grazing exclusively on ryegrass, ryegrass intercropping with vetch (Vicia sativa L.) or red clover (Trifolium pratense L.). The grazing method was continuous with variable stocking. The experimental design was the completely randomized with repeated measures arrangement, three forage systems and three repetitions of area. For evaluations of forage intake, chromic oxide was used as an indicator of fecal production and heifers were considered as experimental units. The forage mass, allowance of forage and allowance of leaf blades were, 1596.2 kg / ha DM, 12 kg DM / 100 kg BW and 4.5 kg DM / 100 kg BW respectively. The participation of vetch and red clover in the forage mass corresponded to 13.2% and 4.5% respectively in the vegetative stage. In the flowering stage, the participation of legumes corresponded to 0.6%. In forage as grazed, crude protein (17.8%), neutral detergent fiber (55.8%) and in situ dry matter digestibility (76.7%) were similar among forage systems. These variables differed between phenological stages of ryegrass. The grazing time differed between the systems being superior in the system with vetch. The forage intake rate in the clover system was higher than the other systems. The dry matter intake was similar among forage systems and was higher in the vegetative stage compared to the flowering stage. The average daily gain was similar among forage systems and phenological stages. With little participation of red clover or vetch in the herbage mass intercropped with ryegrass, it does not modify the intake of dry matter, crude protein and neutral detergent fiber, resulting in the same performance of beef heifers.Foram avaliados o comportamento ingestivo e a ingestão de forragem por bezerras de corte, nos estádios vegetativo e de florescimento do azevém (Lolium multiflorum L.). Os tratamentos foram: pastagem exclusiva de azevém, azevém consorciado com ervilhaca (Vícia sativa L.) ou com trevo vermelho (Trifolium pratense L.). O método de pastejo foi o contínuo com lotação variável. O delineamento experimental foi o inteiramente casualizado com medidas repetidas no tempo, três sistemas forrageiros e três repetições de área. Para as avaliações da estimativa de ingestão de forragem, foi utilizado o óxido de cromo como indicador da produção fecal e as bezerras foram consideradas as unidades experimentais. A massa de forragem, oferta de forragem e oferta de lâminas foliares foram: 1596,2 kg/ha de MS, 12 kg de MS/100 kg PC e 4,5 kg de MS/ 100 kg PC, respectivamente. A participação de “ervilhaca” e “trevo vermelho” na massa de forragem correspondeu a 13,2% e 4,5% respectivamente no estádio vegetativo. No estádio de florescimento o percentual das leguminosas correspondeu a 0,6%. Na forragem da simulação do pastejo, a proteína bruta (17,8%), fibra em detergente neutro (55,8%) e digestibilidade in situ da matéria seca (76,7%), foram similares entre os sistemas forrageiros. Essas variáveis diferiram entre estádios fenológicos do azevém. O tempo de pastejo diferiu entre os sistemas sendo superior no sistema com ervilhaca. A taxa de ingestão de forragem no sistema com trevo foi superior aos demais sistemas. A ingestão de matéria seca foi similar entre os sistemas forrageiros e foi maior no estádio vegetativo em relação ao estádio de florescimento. O ganho médio diário foi semelhante entre sistemas forrageiros e estádios fenológicos. Com pequena participação de “trevo vermelho” ou “ervilhaca” na massa de forragem consorciada com azevém, a ingestão de matéria seca, de proteína bruta e de fibra em detergente neutro não são modificadas resultando em mesmo desempenho de bezerras de corte.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPESporUniversidade Federal de Santa MariaCentro de Ciências RuraisPrograma de Pós-Graduação em ZootecniaUFSMBrasilZootecniaAttribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessLolium multiflorum Lam.Trifolium pratens L.Vícia sativa L.Óxido de cromoTempo de pastejoLolium multiflorum Lam.Trifolium pratense L.Vícia sativa L.Chromic oxideGrazing timeCNPQ::CIENCIAS AGRARIAS::ZOOTECNIARecria de bezerras de corte sob pastejo exclusivo em azevém ou em azevém consorciado com leguminosasRearing of beef heifers under exclusive pasture in italian ryegrass or italian ryegrass consorced with legumesinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisRocha, Marta Gomes dahttp://lattes.cnpq.br/1685524901627774Pötter, Lucianahttp://lattes.cnpq.br/0683474086643296Souza, Alexandre Nunes Motta dehttp://lattes.cnpq.br/6735931795605488http://lattes.cnpq.br/2216458527878283Vicente, Juliano Melleu50040000000260014258b2c-40f2-45c3-b57b-15e290d7d2f60529cbdc-c65b-4902-99a5-0b0738156eb90a396763-33d6-4c4b-9646-cfa9ccf2739f596bbe69-ab3f-4f87-a225-f1ad0b80fc6ereponame:Manancial - Repositório Digital da UFSMinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMORIGINALVicente, Juliano Melleu.pdfVicente, Juliano Melleu.pdfDissertação de Mestradoapplication/pdf1016059http://repositorio.ufsm.br/bitstream/1/11566/1/Vicente%2c%20Juliano%20Melleu.pdfde2c65d2766432a676c3471cde113c06MD51CC-LICENSElicense_rdflicense_rdfapplication/rdf+xml; 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dc.title.por.fl_str_mv |
Recria de bezerras de corte sob pastejo exclusivo em azevém ou em azevém consorciado com leguminosas |
dc.title.alternative.eng.fl_str_mv |
Rearing of beef heifers under exclusive pasture in italian ryegrass or italian ryegrass consorced with legumes |
title |
Recria de bezerras de corte sob pastejo exclusivo em azevém ou em azevém consorciado com leguminosas |
spellingShingle |
Recria de bezerras de corte sob pastejo exclusivo em azevém ou em azevém consorciado com leguminosas Vicente, Juliano Melleu Lolium multiflorum Lam. Trifolium pratens L. Vícia sativa L. Óxido de cromo Tempo de pastejo Lolium multiflorum Lam. Trifolium pratense L. Vícia sativa L. Chromic oxide Grazing time CNPQ::CIENCIAS AGRARIAS::ZOOTECNIA |
title_short |
Recria de bezerras de corte sob pastejo exclusivo em azevém ou em azevém consorciado com leguminosas |
title_full |
Recria de bezerras de corte sob pastejo exclusivo em azevém ou em azevém consorciado com leguminosas |
title_fullStr |
Recria de bezerras de corte sob pastejo exclusivo em azevém ou em azevém consorciado com leguminosas |
title_full_unstemmed |
Recria de bezerras de corte sob pastejo exclusivo em azevém ou em azevém consorciado com leguminosas |
title_sort |
Recria de bezerras de corte sob pastejo exclusivo em azevém ou em azevém consorciado com leguminosas |
author |
Vicente, Juliano Melleu |
author_facet |
Vicente, Juliano Melleu |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Rocha, Marta Gomes da |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/1685524901627774 |
dc.contributor.referee1.fl_str_mv |
Pötter, Luciana |
dc.contributor.referee1Lattes.fl_str_mv |
http://lattes.cnpq.br/0683474086643296 |
dc.contributor.referee2.fl_str_mv |
Souza, Alexandre Nunes Motta de |
dc.contributor.referee2Lattes.fl_str_mv |
http://lattes.cnpq.br/6735931795605488 |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/2216458527878283 |
dc.contributor.author.fl_str_mv |
Vicente, Juliano Melleu |
contributor_str_mv |
Rocha, Marta Gomes da Pötter, Luciana Souza, Alexandre Nunes Motta de |
dc.subject.por.fl_str_mv |
Lolium multiflorum Lam. Trifolium pratens L. Vícia sativa L. Óxido de cromo Tempo de pastejo |
topic |
Lolium multiflorum Lam. Trifolium pratens L. Vícia sativa L. Óxido de cromo Tempo de pastejo Lolium multiflorum Lam. Trifolium pratense L. Vícia sativa L. Chromic oxide Grazing time CNPQ::CIENCIAS AGRARIAS::ZOOTECNIA |
dc.subject.eng.fl_str_mv |
Lolium multiflorum Lam. Trifolium pratense L. Vícia sativa L. Chromic oxide Grazing time |
dc.subject.cnpq.fl_str_mv |
CNPQ::CIENCIAS AGRARIAS::ZOOTECNIA |
description |
The ingestive behavior and the ingestion of forage by beef heifers were evaluated in the vegetative and flowering stages of ryegrass (Lolium multiflorum L.). The treatments were: grazing exclusively on ryegrass, ryegrass intercropping with vetch (Vicia sativa L.) or red clover (Trifolium pratense L.). The grazing method was continuous with variable stocking. The experimental design was the completely randomized with repeated measures arrangement, three forage systems and three repetitions of area. For evaluations of forage intake, chromic oxide was used as an indicator of fecal production and heifers were considered as experimental units. The forage mass, allowance of forage and allowance of leaf blades were, 1596.2 kg / ha DM, 12 kg DM / 100 kg BW and 4.5 kg DM / 100 kg BW respectively. The participation of vetch and red clover in the forage mass corresponded to 13.2% and 4.5% respectively in the vegetative stage. In the flowering stage, the participation of legumes corresponded to 0.6%. In forage as grazed, crude protein (17.8%), neutral detergent fiber (55.8%) and in situ dry matter digestibility (76.7%) were similar among forage systems. These variables differed between phenological stages of ryegrass. The grazing time differed between the systems being superior in the system with vetch. The forage intake rate in the clover system was higher than the other systems. The dry matter intake was similar among forage systems and was higher in the vegetative stage compared to the flowering stage. The average daily gain was similar among forage systems and phenological stages. With little participation of red clover or vetch in the herbage mass intercropped with ryegrass, it does not modify the intake of dry matter, crude protein and neutral detergent fiber, resulting in the same performance of beef heifers. |
publishDate |
2017 |
dc.date.accessioned.fl_str_mv |
2017-08-24T12:09:09Z |
dc.date.available.fl_str_mv |
2017-08-24T12:09:09Z |
dc.date.issued.fl_str_mv |
2017-02-23 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://repositorio.ufsm.br/handle/1/11566 |
url |
http://repositorio.ufsm.br/handle/1/11566 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.cnpq.fl_str_mv |
500400000002 |
dc.relation.confidence.fl_str_mv |
600 |
dc.relation.authority.fl_str_mv |
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dc.rights.driver.fl_str_mv |
Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Universidade Federal de Santa Maria Centro de Ciências Rurais |
dc.publisher.program.fl_str_mv |
Programa de Pós-Graduação em Zootecnia |
dc.publisher.initials.fl_str_mv |
UFSM |
dc.publisher.country.fl_str_mv |
Brasil |
dc.publisher.department.fl_str_mv |
Zootecnia |
publisher.none.fl_str_mv |
Universidade Federal de Santa Maria Centro de Ciências Rurais |
dc.source.none.fl_str_mv |
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Universidade Federal de Santa Maria (UFSM) |
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UFSM |
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UFSM |
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