Herbage accumulation and grazing losses on Mulato grass subjected to strategies of rotational stocking management

Herbage accumulation and grazing losses on Mulato grass subjected to strategies of rotational stocking management

Grazing management strategies affect not only herbage accumulation but also the efficiency of grazing. This study aimed to evaluate herbage accumulation (leaf, stem and dead material), grazing efficiency and losses of mulato grass (a Brachiaria ruziziensis × Brachiaria brizantha cv. Marandu hybrid) subjected to strategies of rotational stocking management. Treatments consisted of combinations between two post-grazing heights (15 and 20 cm) and two pre-grazing conditions (95 % and maximum canopy light interception (LI)) assigned to experimental units (1200-m² paddocks) according to a 2 × 2 factorial arrangement and a randomized complete block design, with four replications. The experiment was carried out from Jan 2008 to Mar 2009. Season of the year influenced almost all studied variables, resulting in a common pattern of response that was determined by pre- and post-grazing management targets. Herbage accumulation was greater on swards managed at 95 %, with higher accumulation of leaves and lower accumulation of stem and dead material in relation to those managed at maximum LI (99 %) during the entire experimental period. On the other hand, herbage removal by grazing was larger on swards managed at 99 % LI, which was compensated for by the smaller number of grazing cycles and larger losses due to grazing under those circumstances. Under rotational stocking, the pre-grazing LI of 95 % and post-grazing height of 20 cm resulted in efficient grazing and high producing leafy pastures, highlighting the potential of Mulato grass pastures for animal production.

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Main Authors: Silveira,Márcia Cristina Teixeira da, Silva,Sila Carneiro Da, Souza Júnior,Salim Jacaúna de, Barbero,Leandro Martins, Rodrigues,Carlindo Santos, Limão,Veridiana Aparecida, Pena,Karine da Silva, Nascimento Júnior,Domicio do
Format: Digital revista
Language:English
Published: Escola Superior de Agricultura "Luiz de Queiroz" 2013
Online Access:http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162013000400004
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spelling oai:scielo:S0103-901620130004000042013-07-29Herbage accumulation and grazing losses on Mulato grass subjected to strategies of rotational stocking managementSilveira,Márcia Cristina Teixeira daSilva,Sila Carneiro DaSouza Júnior,Salim Jacaúna deBarbero,Leandro MartinsRodrigues,Carlindo SantosLimão,Veridiana AparecidaPena,Karine da SilvaNascimento Júnior,Domicio do Brachiaria spp. grazing efficiency light interception grazing management Grazing management strategies affect not only herbage accumulation but also the efficiency of grazing. This study aimed to evaluate herbage accumulation (leaf, stem and dead material), grazing efficiency and losses of mulato grass (a Brachiaria ruziziensis × Brachiaria brizantha cv. Marandu hybrid) subjected to strategies of rotational stocking management. Treatments consisted of combinations between two post-grazing heights (15 and 20 cm) and two pre-grazing conditions (95 % and maximum canopy light interception (LI)) assigned to experimental units (1200-m² paddocks) according to a 2 × 2 factorial arrangement and a randomized complete block design, with four replications. The experiment was carried out from Jan 2008 to Mar 2009. Season of the year influenced almost all studied variables, resulting in a common pattern of response that was determined by pre- and post-grazing management targets. Herbage accumulation was greater on swards managed at 95 %, with higher accumulation of leaves and lower accumulation of stem and dead material in relation to those managed at maximum LI (99 %) during the entire experimental period. On the other hand, herbage removal by grazing was larger on swards managed at 99 % LI, which was compensated for by the smaller number of grazing cycles and larger losses due to grazing under those circumstances. Under rotational stocking, the pre-grazing LI of 95 % and post-grazing height of 20 cm resulted in efficient grazing and high producing leafy pastures, highlighting the potential of Mulato grass pastures for animal production.info:eu-repo/semantics/openAccessEscola Superior de Agricultura "Luiz de Queiroz"Scientia Agricola v.70 n.4 20132013-08-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162013000400004en10.1590/S0103-90162013000400004
institution SCIELO
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country Brasil
countrycode BR
component Revista
access En linea
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region America del Sur
libraryname SciELO
language English
format Digital
author Silveira,Márcia Cristina Teixeira da
Silva,Sila Carneiro Da
Souza Júnior,Salim Jacaúna de
Barbero,Leandro Martins
Rodrigues,Carlindo Santos
Limão,Veridiana Aparecida
Pena,Karine da Silva
Nascimento Júnior,Domicio do
spellingShingle Silveira,Márcia Cristina Teixeira da
Silva,Sila Carneiro Da
Souza Júnior,Salim Jacaúna de
Barbero,Leandro Martins
Rodrigues,Carlindo Santos
Limão,Veridiana Aparecida
Pena,Karine da Silva
Nascimento Júnior,Domicio do
Herbage accumulation and grazing losses on Mulato grass subjected to strategies of rotational stocking management
author_facet Silveira,Márcia Cristina Teixeira da
Silva,Sila Carneiro Da
Souza Júnior,Salim Jacaúna de
Barbero,Leandro Martins
Rodrigues,Carlindo Santos
Limão,Veridiana Aparecida
Pena,Karine da Silva
Nascimento Júnior,Domicio do
author_sort Silveira,Márcia Cristina Teixeira da
title Herbage accumulation and grazing losses on Mulato grass subjected to strategies of rotational stocking management
title_short Herbage accumulation and grazing losses on Mulato grass subjected to strategies of rotational stocking management
title_full Herbage accumulation and grazing losses on Mulato grass subjected to strategies of rotational stocking management
title_fullStr Herbage accumulation and grazing losses on Mulato grass subjected to strategies of rotational stocking management
title_full_unstemmed Herbage accumulation and grazing losses on Mulato grass subjected to strategies of rotational stocking management
title_sort herbage accumulation and grazing losses on mulato grass subjected to strategies of rotational stocking management
description Grazing management strategies affect not only herbage accumulation but also the efficiency of grazing. This study aimed to evaluate herbage accumulation (leaf, stem and dead material), grazing efficiency and losses of mulato grass (a Brachiaria ruziziensis × Brachiaria brizantha cv. Marandu hybrid) subjected to strategies of rotational stocking management. Treatments consisted of combinations between two post-grazing heights (15 and 20 cm) and two pre-grazing conditions (95 % and maximum canopy light interception (LI)) assigned to experimental units (1200-m² paddocks) according to a 2 × 2 factorial arrangement and a randomized complete block design, with four replications. The experiment was carried out from Jan 2008 to Mar 2009. Season of the year influenced almost all studied variables, resulting in a common pattern of response that was determined by pre- and post-grazing management targets. Herbage accumulation was greater on swards managed at 95 %, with higher accumulation of leaves and lower accumulation of stem and dead material in relation to those managed at maximum LI (99 %) during the entire experimental period. On the other hand, herbage removal by grazing was larger on swards managed at 99 % LI, which was compensated for by the smaller number of grazing cycles and larger losses due to grazing under those circumstances. Under rotational stocking, the pre-grazing LI of 95 % and post-grazing height of 20 cm resulted in efficient grazing and high producing leafy pastures, highlighting the potential of Mulato grass pastures for animal production.
publisher Escola Superior de Agricultura "Luiz de Queiroz"
publishDate 2013
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162013000400004
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