Structural and morphogenical characteristics of black oats and Italian ryegrass on pasture submitted to two grazing intensities
Autor(a) principal: | |
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Data de Publicação: | 2010 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista Brasileira de Zootecnia (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982010001100007 |
Resumo: | Morphogenical and structural characteristics of black oats (Avena strigosa Schreb.) and Italian ryegrass (Lolium multiflorum Lam.) on pastures managed under two grazing intensities were quantified by using marked tiller technique. The expected intensities of disappearance of forage mass initial value were 35% (low) and 65% (high). Experimental animals were sheep and interval among grazing was determined through 300 degree-day thermal sum. The experimental design was completely randomized with two grazing intensities and two replicates. Leaf blades of oats and ryegrass were removed at an average proportion of 57.5% of their initial length for both grazing intensities. Among the morphogenical characteristics of oats, only elongation rate of defoliate leaf differed between grazing intensities, with values of 0.059 and 0.081 cm/degree-day for low and high intensities, respectively. Grazing intensities did not alter structural characteristics of oats mixed with ryegrass and red clover. High grazing intensity enables maintenance of a higher number of ryegrass expanding leaves (1.7 leaves/tiller), thus it is suggested for management of pastures with oats mixed with Italian ryegrass and red-clover on intermittent grazing. |
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Structural and morphogenical characteristics of black oats and Italian ryegrass on pasture submitted to two grazing intensitiesintermittent grazingleaf lifespanmarked tillerssheepTrifolium pratense LMorphogenical and structural characteristics of black oats (Avena strigosa Schreb.) and Italian ryegrass (Lolium multiflorum Lam.) on pastures managed under two grazing intensities were quantified by using marked tiller technique. The expected intensities of disappearance of forage mass initial value were 35% (low) and 65% (high). Experimental animals were sheep and interval among grazing was determined through 300 degree-day thermal sum. The experimental design was completely randomized with two grazing intensities and two replicates. Leaf blades of oats and ryegrass were removed at an average proportion of 57.5% of their initial length for both grazing intensities. Among the morphogenical characteristics of oats, only elongation rate of defoliate leaf differed between grazing intensities, with values of 0.059 and 0.081 cm/degree-day for low and high intensities, respectively. Grazing intensities did not alter structural characteristics of oats mixed with ryegrass and red clover. High grazing intensity enables maintenance of a higher number of ryegrass expanding leaves (1.7 leaves/tiller), thus it is suggested for management of pastures with oats mixed with Italian ryegrass and red-clover on intermittent grazing.Sociedade Brasileira de Zootecnia2010-11-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982010001100007Revista Brasileira de Zootecnia v.39 n.11 2010reponame:Revista Brasileira de Zootecnia (Online)instname:Sociedade Brasileira de Zootecnia (SBZ)instacron:SBZ10.1590/S1516-35982010001100007info:eu-repo/semantics/openAccessConfortin,Anna Carolina CeratoRocha,Marta Gomes daQuadros,Fernando Luiz Ferreira deGlienke,Carine LiseteRossi,Guilherme EblingMoraes,Andréia Barros deeng2010-11-25T00:00:00Zoai:scielo:S1516-35982010001100007Revistahttps://www.rbz.org.br/pt-br/https://old.scielo.br/oai/scielo-oai.php||bz@sbz.org.br|| secretariarbz@sbz.org.br1806-92901516-3598opendoar:2010-11-25T00:00Revista Brasileira de Zootecnia (Online) - Sociedade Brasileira de Zootecnia (SBZ)false |
dc.title.none.fl_str_mv |
Structural and morphogenical characteristics of black oats and Italian ryegrass on pasture submitted to two grazing intensities |
title |
Structural and morphogenical characteristics of black oats and Italian ryegrass on pasture submitted to two grazing intensities |
spellingShingle |
Structural and morphogenical characteristics of black oats and Italian ryegrass on pasture submitted to two grazing intensities Confortin,Anna Carolina Cerato intermittent grazing leaf lifespan marked tillers sheep Trifolium pratense L |
title_short |
Structural and morphogenical characteristics of black oats and Italian ryegrass on pasture submitted to two grazing intensities |
title_full |
Structural and morphogenical characteristics of black oats and Italian ryegrass on pasture submitted to two grazing intensities |
title_fullStr |
Structural and morphogenical characteristics of black oats and Italian ryegrass on pasture submitted to two grazing intensities |
title_full_unstemmed |
Structural and morphogenical characteristics of black oats and Italian ryegrass on pasture submitted to two grazing intensities |
title_sort |
Structural and morphogenical characteristics of black oats and Italian ryegrass on pasture submitted to two grazing intensities |
author |
Confortin,Anna Carolina Cerato |
author_facet |
Confortin,Anna Carolina Cerato Rocha,Marta Gomes da Quadros,Fernando Luiz Ferreira de Glienke,Carine Lisete Rossi,Guilherme Ebling Moraes,Andréia Barros de |
author_role |
author |
author2 |
Rocha,Marta Gomes da Quadros,Fernando Luiz Ferreira de Glienke,Carine Lisete Rossi,Guilherme Ebling Moraes,Andréia Barros de |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Confortin,Anna Carolina Cerato Rocha,Marta Gomes da Quadros,Fernando Luiz Ferreira de Glienke,Carine Lisete Rossi,Guilherme Ebling Moraes,Andréia Barros de |
dc.subject.por.fl_str_mv |
intermittent grazing leaf lifespan marked tillers sheep Trifolium pratense L |
topic |
intermittent grazing leaf lifespan marked tillers sheep Trifolium pratense L |
description |
Morphogenical and structural characteristics of black oats (Avena strigosa Schreb.) and Italian ryegrass (Lolium multiflorum Lam.) on pastures managed under two grazing intensities were quantified by using marked tiller technique. The expected intensities of disappearance of forage mass initial value were 35% (low) and 65% (high). Experimental animals were sheep and interval among grazing was determined through 300 degree-day thermal sum. The experimental design was completely randomized with two grazing intensities and two replicates. Leaf blades of oats and ryegrass were removed at an average proportion of 57.5% of their initial length for both grazing intensities. Among the morphogenical characteristics of oats, only elongation rate of defoliate leaf differed between grazing intensities, with values of 0.059 and 0.081 cm/degree-day for low and high intensities, respectively. Grazing intensities did not alter structural characteristics of oats mixed with ryegrass and red clover. High grazing intensity enables maintenance of a higher number of ryegrass expanding leaves (1.7 leaves/tiller), thus it is suggested for management of pastures with oats mixed with Italian ryegrass and red-clover on intermittent grazing. |
publishDate |
2010 |
dc.date.none.fl_str_mv |
2010-11-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982010001100007 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982010001100007 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S1516-35982010001100007 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
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 |
Revista Brasileira de Zootecnia v.39 n.11 2010 reponame:Revista Brasileira de Zootecnia (Online) instname:Sociedade Brasileira de Zootecnia (SBZ) instacron:SBZ |
instname_str |
Sociedade Brasileira de Zootecnia (SBZ) |
instacron_str |
SBZ |
institution |
SBZ |
reponame_str |
Revista Brasileira de Zootecnia (Online) |
collection |
Revista Brasileira de Zootecnia (Online) |
repository.name.fl_str_mv |
Revista Brasileira de Zootecnia (Online) - Sociedade Brasileira de Zootecnia (SBZ) |
repository.mail.fl_str_mv |
||bz@sbz.org.br|| secretariarbz@sbz.org.br |
_version_ |
1750318146895478784 |