Sward structure and livestock performance in guinea grass cv: Tanzania pastures managed by rotational stocking strategies

Sward structure and livestock performance in guinea grass cv: Tanzania pastures managed by rotational stocking strategies

Grazing strategy is a key element in the determination of sward structure, herbage nutritive value and animal performance. We aimed to compare the herbage characteristics and performance of livestock in pastures of Panicum maximum cv. Tanzania managed, using two rotational stocking strategies, which provided either a fixed-length rest period (FRP) of 35 days in the spring and fall and 30 days in the summer, or a variable-length rest period (VRP), determined by the time required for the canopy to achieve 70 cm in height. The pastures were evaluated in the pregrazing condition for forage mass (FM); leaf (LP), stem (SP) and dead matter (DP) percentages; and nutritive value (NV). The animals were weighed every 28 days. Pastures managed with the FRPs exhibited greater FMs, SPs and DPs and lower LPs and NVs than those managed with the VRPs. The average daily livestock weight gain was greater during the spring and summer for the VRP than for the FRP pastures, resulting in an average animal weight gain per area of 990 and 860 kg ha−¹ wet period−¹ for the pastures managed with the VRPs and FRPs, respectively. Thus, pasture rest periods that were maintained after the sward reached 70 cm in height reduced the animal performance on Tanzania guinea grass.

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Main Authors: Euclides,Valéria Pacheco Batista, Montagner,Denise Bataglin, Difante,Gelson dos Santos, Barbosa,Rodrigo Amorim, Fernandes,Wellington Souza
Format: Digital revista
Language:English
Published: Escola Superior de Agricultura "Luiz de Queiroz" 2014
Online Access:http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162014000600002
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spelling oai:scielo:S0103-901620140006000022014-12-15Sward structure and livestock performance in guinea grass cv: Tanzania pastures managed by rotational stocking strategiesEuclides,Valéria Pacheco BatistaMontagner,Denise BataglinDifante,Gelson dos SantosBarbosa,Rodrigo AmorimFernandes,Wellington Souza Panicum maximum canopy height nutritive value savannah stocking rate Grazing strategy is a key element in the determination of sward structure, herbage nutritive value and animal performance. We aimed to compare the herbage characteristics and performance of livestock in pastures of Panicum maximum cv. Tanzania managed, using two rotational stocking strategies, which provided either a fixed-length rest period (FRP) of 35 days in the spring and fall and 30 days in the summer, or a variable-length rest period (VRP), determined by the time required for the canopy to achieve 70 cm in height. The pastures were evaluated in the pregrazing condition for forage mass (FM); leaf (LP), stem (SP) and dead matter (DP) percentages; and nutritive value (NV). The animals were weighed every 28 days. Pastures managed with the FRPs exhibited greater FMs, SPs and DPs and lower LPs and NVs than those managed with the VRPs. The average daily livestock weight gain was greater during the spring and summer for the VRP than for the FRP pastures, resulting in an average animal weight gain per area of 990 and 860 kg ha−¹ wet period−¹ for the pastures managed with the VRPs and FRPs, respectively. Thus, pasture rest periods that were maintained after the sward reached 70 cm in height reduced the animal performance on Tanzania guinea grass.info:eu-repo/semantics/openAccessEscola Superior de Agricultura "Luiz de Queiroz"Scientia Agricola v.71 n.6 20142014-12-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162014000600002en10.1590/0103-9016-2013-0272
institution SCIELO
collection OJS
country Brasil
countrycode BR
component Revista
access En linea
databasecode rev-scielo-br
tag revista
region America del Sur
libraryname SciELO
language English
format Digital
author Euclides,Valéria Pacheco Batista
Montagner,Denise Bataglin
Difante,Gelson dos Santos
Barbosa,Rodrigo Amorim
Fernandes,Wellington Souza
spellingShingle Euclides,Valéria Pacheco Batista
Montagner,Denise Bataglin
Difante,Gelson dos Santos
Barbosa,Rodrigo Amorim
Fernandes,Wellington Souza
Sward structure and livestock performance in guinea grass cv: Tanzania pastures managed by rotational stocking strategies
author_facet Euclides,Valéria Pacheco Batista
Montagner,Denise Bataglin
Difante,Gelson dos Santos
Barbosa,Rodrigo Amorim
Fernandes,Wellington Souza
author_sort Euclides,Valéria Pacheco Batista
title Sward structure and livestock performance in guinea grass cv: Tanzania pastures managed by rotational stocking strategies
title_short Sward structure and livestock performance in guinea grass cv: Tanzania pastures managed by rotational stocking strategies
title_full Sward structure and livestock performance in guinea grass cv: Tanzania pastures managed by rotational stocking strategies
title_fullStr Sward structure and livestock performance in guinea grass cv: Tanzania pastures managed by rotational stocking strategies
title_full_unstemmed Sward structure and livestock performance in guinea grass cv: Tanzania pastures managed by rotational stocking strategies
title_sort sward structure and livestock performance in guinea grass cv: tanzania pastures managed by rotational stocking strategies
description Grazing strategy is a key element in the determination of sward structure, herbage nutritive value and animal performance. We aimed to compare the herbage characteristics and performance of livestock in pastures of Panicum maximum cv. Tanzania managed, using two rotational stocking strategies, which provided either a fixed-length rest period (FRP) of 35 days in the spring and fall and 30 days in the summer, or a variable-length rest period (VRP), determined by the time required for the canopy to achieve 70 cm in height. The pastures were evaluated in the pregrazing condition for forage mass (FM); leaf (LP), stem (SP) and dead matter (DP) percentages; and nutritive value (NV). The animals were weighed every 28 days. Pastures managed with the FRPs exhibited greater FMs, SPs and DPs and lower LPs and NVs than those managed with the VRPs. The average daily livestock weight gain was greater during the spring and summer for the VRP than for the FRP pastures, resulting in an average animal weight gain per area of 990 and 860 kg ha−¹ wet period−¹ for the pastures managed with the VRPs and FRPs, respectively. Thus, pasture rest periods that were maintained after the sward reached 70 cm in height reduced the animal performance on Tanzania guinea grass.
publisher Escola Superior de Agricultura "Luiz de Queiroz"
publishDate 2014
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162014000600002
work_keys_str_mv AT euclidesvaleriapachecobatista swardstructureandlivestockperformanceinguineagrasscvtanzaniapasturesmanagedbyrotationalstockingstrategies
AT montagnerdenisebataglin swardstructureandlivestockperformanceinguineagrasscvtanzaniapasturesmanagedbyrotationalstockingstrategies
AT difantegelsondossantos swardstructureandlivestockperformanceinguineagrasscvtanzaniapasturesmanagedbyrotationalstockingstrategies
AT barbosarodrigoamorim swardstructureandlivestockperformanceinguineagrasscvtanzaniapasturesmanagedbyrotationalstockingstrategies
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