Avaliação e seleção de clones de capim-elefante sob pastejo de ovinos na zona da mata de Pernambuco
Ano de defesa: | 2013 |
---|---|
Autor(a) principal: | |
Orientador(a): | |
Banca de defesa: | , , , |
Tipo de documento: | Tese |
Tipo de acesso: | Acesso aberto |
Idioma: | por |
Instituição de defesa: |
Universidade Federal Rural de Pernambuco
|
Programa de Pós-Graduação: |
Programa de Pós-Graduação em Zootecnia
|
Departamento: |
Departamento de Zootecnia
|
País: |
Brasil
|
Palavras-chave em Português: | |
Palavras-chave em Inglês: | |
Área do conhecimento CNPq: | |
Link de acesso: | http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/6686 |
Resumo: | This work aimed to evaluate the influence of morphological characteristics on tissue proportion and ruminal digestion of leaf blades of clones from elephantgrass, and also to study the genotype x environment interaction on morphological and productive characteristics, by stability and adaptability analyzing to select Pennisetum sp. clones under sheep grazing. The experiment was conducted at the Itambé Experimental Station of Pernambuco, Agricultural Research Institute - IPA, Dry Forest Zone of Pernambuco. Genotypes were managed under rotational stocking, being used 25 Santa Inês sheep in "mob grazing" to obtain residue height of 0.3 m. Morphological and productive evaluations were conducted between September 2008 and September 2010, totaling sixteen grazing cycles. There was difference among clones for nine grazing cycles to the leaf blade/stem ratio, with the dwarf clones showing a higher proportion of leaf blades. There was difference - in all grazing cycles - among the genotypes for the internode length, plant height and proportion of sclerenchyma, adaxial epidermis, bulliform cells, total vascular bundle, mesophyll, bundle sheath and number of vascular bundles of the leaf blade tissues of genotypes. The average herbage accumulation ranged from 2180 kg DM ha-1 (Taiwan 2.37) to 3383 kg DM ha-1 (Mott) and 2796 kg DM ha-1, the overall average. Dwarf genotypes Taiwan 2.27, Taiwan 2.114 and Mott showed high yielding capacity of leaves per tiller. The observed differences in morphological and anatomical characteristics among clones of different heights did not affect the rate of disappearance of leaf blade tissues after 48 h of ruminal digestion. Besides the high yielding of dwarf clones Mott and Taiwan 2.114, this accumulation of forage is represented by a greater number of leaves, and is therefore recommended for next phase of the breeding program. |
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MELLO, Alexandre Carneiro Leão deLIRA, Mário de AndradeGUIM, AdrianaANDRADE, Albérício Pereira deDUBEUX JÚNIOR, José Carlos BatistaCUNHA, Márcio Vieira daPEDREIRA, Bruno Carneiro ehttp://lattes.cnpq.br/0723462342997914VIANA, Bruno Leal2017-03-27T16:29:21Z2013-07-29VIANA, Bruno Leal. Avaliação e seleção de clones de capim-elefante sob pastejo de ovinos na zona da mata de Pernambuco. 2013. 98 f. Tese (Programa de Pós-Graduação em Zootecnia) - Universidade Federal Rural de Pernambuco, Recife.http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/6686This work aimed to evaluate the influence of morphological characteristics on tissue proportion and ruminal digestion of leaf blades of clones from elephantgrass, and also to study the genotype x environment interaction on morphological and productive characteristics, by stability and adaptability analyzing to select Pennisetum sp. clones under sheep grazing. The experiment was conducted at the Itambé Experimental Station of Pernambuco, Agricultural Research Institute - IPA, Dry Forest Zone of Pernambuco. Genotypes were managed under rotational stocking, being used 25 Santa Inês sheep in "mob grazing" to obtain residue height of 0.3 m. Morphological and productive evaluations were conducted between September 2008 and September 2010, totaling sixteen grazing cycles. There was difference among clones for nine grazing cycles to the leaf blade/stem ratio, with the dwarf clones showing a higher proportion of leaf blades. There was difference - in all grazing cycles - among the genotypes for the internode length, plant height and proportion of sclerenchyma, adaxial epidermis, bulliform cells, total vascular bundle, mesophyll, bundle sheath and number of vascular bundles of the leaf blade tissues of genotypes. The average herbage accumulation ranged from 2180 kg DM ha-1 (Taiwan 2.37) to 3383 kg DM ha-1 (Mott) and 2796 kg DM ha-1, the overall average. Dwarf genotypes Taiwan 2.27, Taiwan 2.114 and Mott showed high yielding capacity of leaves per tiller. The observed differences in morphological and anatomical characteristics among clones of different heights did not affect the rate of disappearance of leaf blade tissues after 48 h of ruminal digestion. Besides the high yielding of dwarf clones Mott and Taiwan 2.114, this accumulation of forage is represented by a greater number of leaves, and is therefore recommended for next phase of the breeding program.O trabalho objetivou avaliar a influência de características morfológicas sobre a proporção de tecidos e a digestão ruminal de lâminas foliares de clones de capim-elefante, além de estudar a interação genótipo x ambiente sobre características produtivas e morfológicas, por meio de análise de adaptabilidade e estabilidade para selecionar clones de Pennisetum sp. sob pastejo de ovinos. O experimento foi realizado na Estação Experimental do Instituto Agronômico de Pernambuco, no Município de Itambé, Zona da Mata Seca de Pernambuco (IPA). Os genótipos foram manejados sob lotação intermitente, sendo utilizados 25 ovinos da raça Santa Inês, como animais pastejadores em “mob grazing”, para se obter altura de resíduo de 0,3 m. As avaliações morfológicas e produtivas foram realizadas entre setembro de 2008 e setembro de 2010, totalizando dezesseis ciclos de pastejo. Houve diferença entre os clones durante nove ciclos de pastejo para relação lâmina foliar/colmo, com os clones de porte baixo apresentando maior proporção de lâminas foliares. Em todos os ciclos de pastejo houve diferença entre os genótipos quanto ao comprimento de entrenó, altura de plantas e na proporção de esclerênquima, epiderme adaxial, células buliformes, feixe vascular total, mesofilo, bainha vascular e número de feixes vasculares dos tecidos de lâminas foliares dos genótipos estudados. O acúmulo de forragem médio variou de 2180 kg de MS ha-1 (Taiwan - 2.37) a 3383 kg de MS ha-1 (Mott), sendo 2796 kg de MS ha-1, a média geral. Os genótipos de porte baixo Taiwan - 2.27, Taiwan - 2.114 e Mott apresentaram alta capacidade produtiva de folhas por perfilho. As diferenças observadas nas características morfológicas e anatômicas entre os clones de diferentes portes não influenciaram a taxa de desaparecimento de tecidos de lâminas foliares após 48 h de digestão ruminal. Além do alto potencial produtivo dos clones de porte baixo Mott e Taiwan - 2.114, esse acúmulo de forragem é representado por uma maior quantidade de folhas, sendo, portanto, recomendado para próxima fase do programa de melhoramento.Submitted by (edna.saturno@ufrpe.br) on 2017-03-27T16:29:21Z No. of bitstreams: 1 Bruno Leal Viana.pdf: 1085124 bytes, checksum: 87401ed6ddb809c4c68fac536b835e79 (MD5)Made available in DSpace on 2017-03-27T16:29:21Z (GMT). No. of bitstreams: 1 Bruno Leal Viana.pdf: 1085124 bytes, checksum: 87401ed6ddb809c4c68fac536b835e79 (MD5) Previous issue date: 2013-07-29application/pdfporUniversidade Federal Rural de PernambucoPrograma de Pós-Graduação em ZootecniaUFRPEBrasilDepartamento de ZootecniaOvinoAnatomiaPastejoAdaptabilidadeAnatomyAdaptabilitySheepGrazingCIENCIAS AGRARIAS::ZOOTECNIAAvaliação e seleção de clones de capim-elefante sob pastejo de ovinos na zona da mata de Pernambucoinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesis-3881065194686295060600600600-76856541506829724321346858981270845602info:eu-repo/semantics/openAccessreponame:Biblioteca Digital de Teses e Dissertações da UFRPEinstname:Universidade Federal Rural de Pernambuco (UFRPE)instacron:UFRPELICENSElicense.txtlicense.txttext/plain; charset=utf-82165http://www.tede2.ufrpe.br:8080/tede2/bitstream/tede2/6686/1/license.txtbd3efa91386c1718a7f26a329fdcb468MD51ORIGINALBruno Leal Viana.pdfBruno Leal Viana.pdfapplication/pdf1085124http://www.tede2.ufrpe.br:8080/tede2/bitstream/tede2/6686/2/Bruno+Leal+Viana.pdf87401ed6ddb809c4c68fac536b835e79MD52tede2/66862017-03-27 13:29:21.082oai:tede2: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Biblioteca Digital de Teses e Dissertaçõeshttp://www.tede2.ufrpe.br:8080/tede/PUBhttp://www.tede2.ufrpe.br:8080/oai/requestbdtd@ufrpe.br ||bdtd@ufrpe.bropendoar:2017-03-27T16:29:21Biblioteca Digital de Teses e Dissertações da UFRPE - Universidade Federal Rural de Pernambuco (UFRPE)false |
dc.title.por.fl_str_mv |
Avaliação e seleção de clones de capim-elefante sob pastejo de ovinos na zona da mata de Pernambuco |
title |
Avaliação e seleção de clones de capim-elefante sob pastejo de ovinos na zona da mata de Pernambuco |
spellingShingle |
Avaliação e seleção de clones de capim-elefante sob pastejo de ovinos na zona da mata de Pernambuco VIANA, Bruno Leal Ovino Anatomia Pastejo Adaptabilidade Anatomy Adaptability Sheep Grazing CIENCIAS AGRARIAS::ZOOTECNIA |
title_short |
Avaliação e seleção de clones de capim-elefante sob pastejo de ovinos na zona da mata de Pernambuco |
title_full |
Avaliação e seleção de clones de capim-elefante sob pastejo de ovinos na zona da mata de Pernambuco |
title_fullStr |
Avaliação e seleção de clones de capim-elefante sob pastejo de ovinos na zona da mata de Pernambuco |
title_full_unstemmed |
Avaliação e seleção de clones de capim-elefante sob pastejo de ovinos na zona da mata de Pernambuco |
title_sort |
Avaliação e seleção de clones de capim-elefante sob pastejo de ovinos na zona da mata de Pernambuco |
author |
VIANA, Bruno Leal |
author_facet |
VIANA, Bruno Leal |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
MELLO, Alexandre Carneiro Leão de |
dc.contributor.advisor-co1.fl_str_mv |
LIRA, Mário de Andrade |
dc.contributor.advisor-co2.fl_str_mv |
GUIM, Adriana |
dc.contributor.referee1.fl_str_mv |
ANDRADE, Albérício Pereira de |
dc.contributor.referee2.fl_str_mv |
DUBEUX JÚNIOR, José Carlos Batista |
dc.contributor.referee3.fl_str_mv |
CUNHA, Márcio Vieira da |
dc.contributor.referee4.fl_str_mv |
PEDREIRA, Bruno Carneiro e |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/0723462342997914 |
dc.contributor.author.fl_str_mv |
VIANA, Bruno Leal |
contributor_str_mv |
MELLO, Alexandre Carneiro Leão de LIRA, Mário de Andrade GUIM, Adriana ANDRADE, Albérício Pereira de DUBEUX JÚNIOR, José Carlos Batista CUNHA, Márcio Vieira da PEDREIRA, Bruno Carneiro e |
dc.subject.por.fl_str_mv |
Ovino Anatomia Pastejo Adaptabilidade |
topic |
Ovino Anatomia Pastejo Adaptabilidade Anatomy Adaptability Sheep Grazing CIENCIAS AGRARIAS::ZOOTECNIA |
dc.subject.eng.fl_str_mv |
Anatomy Adaptability Sheep Grazing |
dc.subject.cnpq.fl_str_mv |
CIENCIAS AGRARIAS::ZOOTECNIA |
description |
This work aimed to evaluate the influence of morphological characteristics on tissue proportion and ruminal digestion of leaf blades of clones from elephantgrass, and also to study the genotype x environment interaction on morphological and productive characteristics, by stability and adaptability analyzing to select Pennisetum sp. clones under sheep grazing. The experiment was conducted at the Itambé Experimental Station of Pernambuco, Agricultural Research Institute - IPA, Dry Forest Zone of Pernambuco. Genotypes were managed under rotational stocking, being used 25 Santa Inês sheep in "mob grazing" to obtain residue height of 0.3 m. Morphological and productive evaluations were conducted between September 2008 and September 2010, totaling sixteen grazing cycles. There was difference among clones for nine grazing cycles to the leaf blade/stem ratio, with the dwarf clones showing a higher proportion of leaf blades. There was difference - in all grazing cycles - among the genotypes for the internode length, plant height and proportion of sclerenchyma, adaxial epidermis, bulliform cells, total vascular bundle, mesophyll, bundle sheath and number of vascular bundles of the leaf blade tissues of genotypes. The average herbage accumulation ranged from 2180 kg DM ha-1 (Taiwan 2.37) to 3383 kg DM ha-1 (Mott) and 2796 kg DM ha-1, the overall average. Dwarf genotypes Taiwan 2.27, Taiwan 2.114 and Mott showed high yielding capacity of leaves per tiller. The observed differences in morphological and anatomical characteristics among clones of different heights did not affect the rate of disappearance of leaf blade tissues after 48 h of ruminal digestion. Besides the high yielding of dwarf clones Mott and Taiwan 2.114, this accumulation of forage is represented by a greater number of leaves, and is therefore recommended for next phase of the breeding program. |
publishDate |
2013 |
dc.date.issued.fl_str_mv |
2013-07-29 |
dc.date.accessioned.fl_str_mv |
2017-03-27T16:29:21Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/doctoralThesis |
format |
doctoralThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
VIANA, Bruno Leal. Avaliação e seleção de clones de capim-elefante sob pastejo de ovinos na zona da mata de Pernambuco. 2013. 98 f. Tese (Programa de Pós-Graduação em Zootecnia) - Universidade Federal Rural de Pernambuco, Recife. |
dc.identifier.uri.fl_str_mv |
http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/6686 |
identifier_str_mv |
VIANA, Bruno Leal. Avaliação e seleção de clones de capim-elefante sob pastejo de ovinos na zona da mata de Pernambuco. 2013. 98 f. Tese (Programa de Pós-Graduação em Zootecnia) - Universidade Federal Rural de Pernambuco, Recife. |
url |
http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/6686 |
dc.language.iso.fl_str_mv |
por |
language |
por |
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dc.relation.confidence.fl_str_mv |
600 600 600 |
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dc.relation.cnpq.fl_str_mv |
1346858981270845602 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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application/pdf |
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Universidade Federal Rural de Pernambuco |
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Programa de Pós-Graduação em Zootecnia |
dc.publisher.initials.fl_str_mv |
UFRPE |
dc.publisher.country.fl_str_mv |
Brasil |
dc.publisher.department.fl_str_mv |
Departamento de Zootecnia |
publisher.none.fl_str_mv |
Universidade Federal Rural de Pernambuco |
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