Características morfogênicas da pastagem de sorgo forrageiro submetido ao pastejo contínuo de novilhos de corte suplementados
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Biblioteca Digital de Teses e Dissertações do UFSM |
Texto Completo: | http://repositorio.ufsm.br/handle/1/10886 |
Resumo: | Feed supplementation of the animals affects the pasture intake and may influence its productive and structural characteristics. Morphogenesis is a valuable tool for the dynamics understanding of the pasture, however the morphogenetic studies related to sorghum culture are still scarce as well as the evaluation of the supplementation effects on these characteristics. The objective of the present study was to evaluate the effects of the different levels of supplementation on the morphogenetic characteristics of sorghum forage (Sorghum bicolor (L.) Moench) submitted to continuous grazing of beef steers. The experiment was performed at the Beef Cattle Laboratory of UFSM from January to April, 2013. Morphogenetic measures were taken by the marked tiller technique in order to determine the morphogenetic variables of sorghum forage. The completely randomized experimental design was used, with measures repeated in time, with three treatments and two repetitions (area) for the morphogenetic characteristics. The results of the morphogenetic variables were submitted to variance analysis with 5% of significance level using PROC MIXED. The analyses were performed with the assistance of the statistical package SAS 9.1.3 (2009). By increasing the supplementation level offered to the animals it was observed a lower value for the Number of Live Leafs (2.77, 3.34 and 3.55) and Leaf Elongation Rate (0.06, 0.09 and 0.08) characteristics. The variables Leaf Appearance Rate (0.0041, 0.0043 and 0.039), Leaf Senescence Rate (0.05, 0.06 and 0.11) and Phyllochron (283.96, 265.21 and 278.62) were not influenced by the different supplementation levels. There was a difference among the evaluation periods for the characteristics Leaf Life Span (1081.1, 986.25 and 788.79) and Leaf Elongation Length (350.58, 312.83 and 326.36). For the characteristics Canopy Height, Pseudo Stem Length, and Final Length of Blades there was an interaction between treatment and period. |
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2017-06-052017-06-052015-02-27MARTINI, Ana Paula Machado. Morphogenetic characteristics of sorghum forage submitted to the grazing continuous supplemented beef steers. 2015. 58 f. Dissertação (Mestrado em Zootecnia) - Universidade Federal de Santa Maria, Santa Maria, 2015.http://repositorio.ufsm.br/handle/1/10886Feed supplementation of the animals affects the pasture intake and may influence its productive and structural characteristics. Morphogenesis is a valuable tool for the dynamics understanding of the pasture, however the morphogenetic studies related to sorghum culture are still scarce as well as the evaluation of the supplementation effects on these characteristics. The objective of the present study was to evaluate the effects of the different levels of supplementation on the morphogenetic characteristics of sorghum forage (Sorghum bicolor (L.) Moench) submitted to continuous grazing of beef steers. The experiment was performed at the Beef Cattle Laboratory of UFSM from January to April, 2013. Morphogenetic measures were taken by the marked tiller technique in order to determine the morphogenetic variables of sorghum forage. The completely randomized experimental design was used, with measures repeated in time, with three treatments and two repetitions (area) for the morphogenetic characteristics. The results of the morphogenetic variables were submitted to variance analysis with 5% of significance level using PROC MIXED. The analyses were performed with the assistance of the statistical package SAS 9.1.3 (2009). By increasing the supplementation level offered to the animals it was observed a lower value for the Number of Live Leafs (2.77, 3.34 and 3.55) and Leaf Elongation Rate (0.06, 0.09 and 0.08) characteristics. The variables Leaf Appearance Rate (0.0041, 0.0043 and 0.039), Leaf Senescence Rate (0.05, 0.06 and 0.11) and Phyllochron (283.96, 265.21 and 278.62) were not influenced by the different supplementation levels. There was a difference among the evaluation periods for the characteristics Leaf Life Span (1081.1, 986.25 and 788.79) and Leaf Elongation Length (350.58, 312.83 and 326.36). For the characteristics Canopy Height, Pseudo Stem Length, and Final Length of Blades there was an interaction between treatment and period.A suplementação alimentar dos animais afeta o consumo do pasto e pode influenciar suas caraterísticas produtivas e estruturais. A morfogênese é uma valiosa ferramenta para a compreensão da dinâmica do pasto, porém os estudos morfogênicos referentes à cultura do sorgo ainda são escassos, bem como a avaliação dos efeitos da suplementação sobre estas características. O objetivo do presente estudo foi avaliar os efeitos de diferentes níveis de suplementação sobre as características morfogênicas do sorgo forrageiro (Sorghum bicolor (L.) Moench) submetido ao pastejo contínuo de novilhos de corte. O experimento foi conduzido no Laboratório de Bovinocultura de Corte da UFSM no período de janeiro a abril de 2013. Foram tomadas medidas morfogênicas pela técnica de perfilhos marcados para determinação das variáveis morfogênicas do sorgo forrageiro. O delineamento experimental foi inteiramente casualizado, com medidas repetidas no tempo, com três tratamentos e duas repetições (área) para as características morfogênicas. Os resultados das variáveis morfogênicas foram submetidos à análise de variância em nível de 5% de significância, utilizando o PROC MIXED. As análises foram realizadas com auxílio do pacote estatístico SAS 9.1.3 (2009). Ao aumentar o nível de suplementação ofertado aos animais, observou-se menor valor para as características de Folhas Vivas (2,77, 3,34 e 3,55) e Taxa de Alongamento Foliar (0,06 0,09 e 0,08). Não foram influenciadas pelos diferentes níveis de suplementação as variáveis Taxa de Aparecimento Foliar (0,0041, 0,0043 e 0,039), Taxa de Senescência Foliar (0,05, 0,06 e 0,11), Filocrono (283,96, 265,21 e 278,62). Para as características Duração de Vida da Folha (1081,1, 986,25 e 788,79) e Duração de Elongação Foliar (350,58, 312,83 e 326,36) houve diferença entre os períodos de avaliação. Para as características Altura de Dossel, Comprimento de Pseudocolmo e Comprimento Final de Laminas houve interação entre tratamento e período.Coordenação de Aperfeiçoamento de Pessoal de Nível Superiorapplication/pdfporUniversidade Federal de Santa MariaPrograma de Pós-Graduação em ZootecniaUFSMBRZootecniaFilocronoPastagem de clima tropicalDosselDuração de vida da folhaMorfogênesePhyllochronMorphogenesisTropical pasturesLeaf life spanCanopyCNPQ::CIENCIAS AGRARIAS::ZOOTECNIACaracterísticas morfogênicas da pastagem de sorgo forrageiro submetido ao pastejo contínuo de novilhos de corte suplementadosMorphogenetic characteristics of sorghum forage submitted to the grazing continuous supplemented beef steersinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisBrondani, Ivan Luizhttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4780102Z0Alves Filho, Dari Celestinohttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4728123E5Segabinazzi, Luciane Rumpelhttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4210149Y8http://lattes.cnpq.br/7616014173878018Martini, Ana Paula Machado500400000002400500300500500734f41d9-cb39-4ca4-81e7-b1d776cdc0db2d7bd6ae-090b-4d64-b1fd-c482714c335ce5834d46-c91a-4bed-a42a-b8fbc60b47ef151d6833-bfe6-465b-8fd6-5deef2ff16d4info:eu-repo/semantics/openAccessreponame:Biblioteca Digital de Teses e Dissertações do UFSMinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMORIGINALMARTINI, ANA PAULA MACHADO.pdfapplication/pdf1347128http://repositorio.ufsm.br/bitstream/1/10886/1/MARTINI%2c%20ANA%20PAULA%20MACHADO.pdf6cb87efc3e4f78ab3c1eea71570caca2MD51TEXTMARTINI, ANA PAULA MACHADO.pdf.txtMARTINI, ANA PAULA MACHADO.pdf.txtExtracted texttext/plain98512http://repositorio.ufsm.br/bitstream/1/10886/2/MARTINI%2c%20ANA%20PAULA%20MACHADO.pdf.txta33448cfa8058628b50c0cceec910fb4MD52THUMBNAILMARTINI, ANA PAULA MACHADO.pdf.jpgMARTINI, ANA PAULA MACHADO.pdf.jpgIM Thumbnailimage/jpeg5315http://repositorio.ufsm.br/bitstream/1/10886/3/MARTINI%2c%20ANA%20PAULA%20MACHADO.pdf.jpga50bd178915aed84c7a995095c973acdMD531/108862022-08-05 12:07:28.13oai:repositorio.ufsm.br:1/10886Biblioteca Digital de Teses e Dissertaçõeshttps://repositorio.ufsm.br/ONGhttps://repositorio.ufsm.br/oai/requestatendimento.sib@ufsm.br||tedebc@gmail.comopendoar:2022-08-05T15:07:28Biblioteca Digital de Teses e Dissertações do UFSM - Universidade Federal de Santa Maria (UFSM)false |
dc.title.por.fl_str_mv |
Características morfogênicas da pastagem de sorgo forrageiro submetido ao pastejo contínuo de novilhos de corte suplementados |
dc.title.alternative.eng.fl_str_mv |
Morphogenetic characteristics of sorghum forage submitted to the grazing continuous supplemented beef steers |
title |
Características morfogênicas da pastagem de sorgo forrageiro submetido ao pastejo contínuo de novilhos de corte suplementados |
spellingShingle |
Características morfogênicas da pastagem de sorgo forrageiro submetido ao pastejo contínuo de novilhos de corte suplementados Martini, Ana Paula Machado Filocrono Pastagem de clima tropical Dossel Duração de vida da folha Morfogênese Phyllochron Morphogenesis Tropical pastures Leaf life span Canopy CNPQ::CIENCIAS AGRARIAS::ZOOTECNIA |
title_short |
Características morfogênicas da pastagem de sorgo forrageiro submetido ao pastejo contínuo de novilhos de corte suplementados |
title_full |
Características morfogênicas da pastagem de sorgo forrageiro submetido ao pastejo contínuo de novilhos de corte suplementados |
title_fullStr |
Características morfogênicas da pastagem de sorgo forrageiro submetido ao pastejo contínuo de novilhos de corte suplementados |
title_full_unstemmed |
Características morfogênicas da pastagem de sorgo forrageiro submetido ao pastejo contínuo de novilhos de corte suplementados |
title_sort |
Características morfogênicas da pastagem de sorgo forrageiro submetido ao pastejo contínuo de novilhos de corte suplementados |
author |
Martini, Ana Paula Machado |
author_facet |
Martini, Ana Paula Machado |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Brondani, Ivan Luiz |
dc.contributor.advisor1Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4780102Z0 |
dc.contributor.referee1.fl_str_mv |
Alves Filho, Dari Celestino |
dc.contributor.referee1Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4728123E5 |
dc.contributor.referee2.fl_str_mv |
Segabinazzi, Luciane Rumpel |
dc.contributor.referee2Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4210149Y8 |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/7616014173878018 |
dc.contributor.author.fl_str_mv |
Martini, Ana Paula Machado |
contributor_str_mv |
Brondani, Ivan Luiz Alves Filho, Dari Celestino Segabinazzi, Luciane Rumpel |
dc.subject.por.fl_str_mv |
Filocrono Pastagem de clima tropical Dossel Duração de vida da folha Morfogênese |
topic |
Filocrono Pastagem de clima tropical Dossel Duração de vida da folha Morfogênese Phyllochron Morphogenesis Tropical pastures Leaf life span Canopy CNPQ::CIENCIAS AGRARIAS::ZOOTECNIA |
dc.subject.eng.fl_str_mv |
Phyllochron Morphogenesis Tropical pastures Leaf life span Canopy |
dc.subject.cnpq.fl_str_mv |
CNPQ::CIENCIAS AGRARIAS::ZOOTECNIA |
description |
Feed supplementation of the animals affects the pasture intake and may influence its productive and structural characteristics. Morphogenesis is a valuable tool for the dynamics understanding of the pasture, however the morphogenetic studies related to sorghum culture are still scarce as well as the evaluation of the supplementation effects on these characteristics. The objective of the present study was to evaluate the effects of the different levels of supplementation on the morphogenetic characteristics of sorghum forage (Sorghum bicolor (L.) Moench) submitted to continuous grazing of beef steers. The experiment was performed at the Beef Cattle Laboratory of UFSM from January to April, 2013. Morphogenetic measures were taken by the marked tiller technique in order to determine the morphogenetic variables of sorghum forage. The completely randomized experimental design was used, with measures repeated in time, with three treatments and two repetitions (area) for the morphogenetic characteristics. The results of the morphogenetic variables were submitted to variance analysis with 5% of significance level using PROC MIXED. The analyses were performed with the assistance of the statistical package SAS 9.1.3 (2009). By increasing the supplementation level offered to the animals it was observed a lower value for the Number of Live Leafs (2.77, 3.34 and 3.55) and Leaf Elongation Rate (0.06, 0.09 and 0.08) characteristics. The variables Leaf Appearance Rate (0.0041, 0.0043 and 0.039), Leaf Senescence Rate (0.05, 0.06 and 0.11) and Phyllochron (283.96, 265.21 and 278.62) were not influenced by the different supplementation levels. There was a difference among the evaluation periods for the characteristics Leaf Life Span (1081.1, 986.25 and 788.79) and Leaf Elongation Length (350.58, 312.83 and 326.36). For the characteristics Canopy Height, Pseudo Stem Length, and Final Length of Blades there was an interaction between treatment and period. |
publishDate |
2015 |
dc.date.issued.fl_str_mv |
2015-02-27 |
dc.date.accessioned.fl_str_mv |
2017-06-05 |
dc.date.available.fl_str_mv |
2017-06-05 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
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info:eu-repo/semantics/masterThesis |
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masterThesis |
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publishedVersion |
dc.identifier.citation.fl_str_mv |
MARTINI, Ana Paula Machado. Morphogenetic characteristics of sorghum forage submitted to the grazing continuous supplemented beef steers. 2015. 58 f. Dissertação (Mestrado em Zootecnia) - Universidade Federal de Santa Maria, Santa Maria, 2015. |
dc.identifier.uri.fl_str_mv |
http://repositorio.ufsm.br/handle/1/10886 |
identifier_str_mv |
MARTINI, Ana Paula Machado. Morphogenetic characteristics of sorghum forage submitted to the grazing continuous supplemented beef steers. 2015. 58 f. Dissertação (Mestrado em Zootecnia) - Universidade Federal de Santa Maria, Santa Maria, 2015. |
url |
http://repositorio.ufsm.br/handle/1/10886 |
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por |
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UFSM |
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Universidade Federal de Santa Maria |
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