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Provedor de dados:  Repositório Alice
País:  Brazil
Título:  Grazing management strategies for massaigrass-forage peanut pastures. 2. Productivity, utilization and sward structure.
Autores:  ANDRADE, C. M. S. de
GARCIA, R.
VALENTIM, J. F.
PEREIRA, O. G.
Data:  2006-04-17
Ano:  2006
Palavras-chave:  Capim massai
Panicum maximum x P infestum cv Massai
Mixed massaigrass
Amendoim forrageiro
Arachis pintoi
Forage peanut
Profundidade do pastejo
Grazing depht
Profundidad de pastoreo
Pastagem consorciada
Leguminosa forrageira
Híbrido
Características agronômicas
Morfologia vegetal
Matéria seca
Desfolha
Pastejo
Mixed grazing
Forage legumes
Hybrids
Agronomic traits
Pastoreo mixto
Plant morphology
Dry matter accumulation
Defoliation
Leguminosas forrajeras
Híbridos
Características agronómicas
Morfología de las plantas
Acumulación de materia seca
Defoliación
Resumo:  This study was carried out to evaluate the productivity, utilization and sward structure of a mixed massaigrass (Panicum maximum x P. infestum, cv. Massai) and forage peanut (Arachis pintoi Ac 01) pasture, intermittently stocked at three daily herbage allowance levels (9.0, 14.5 and 18.4% of live weight). In each grazing cycle, dry matter (DM) accumulation rates, defoliation intensity (%), grazing depth (%) and grazed horizon (cm) were evaluated. The structure of massaigrass tussocks was characterized in both dry and rainy seasons by measuring its pre-grazing morphological composition and postgrazing height and density (tussocks/m). Pastures submitted to higher herbage allowance (HA) levels showed higher productivity, but were less efficiently utilized. On average, over the experimental period, DM accumulation rates increased linearly from 56.8 to 81.3 kg/ha/day as HA levels increased from 9.0 to 18.4% of live weight. However, defoliation intensity and grazing depth declined linearly with increasing HA levels. During the dry season, pre-grazing morphological composition of massaigrass was characterized by 41% of green leaf blades, 10% of pseudostems and 49% of dead material, irrespective of HA levels. In the rainy season, however, it showed higher percentage of green leaf blades and lower percentage of pseudostems when submitted to lower HA levels, although there were not differences in relation to percentage of dead material. The structure of massaigrass tussocks tended to deteriorate at high HA levels.

2006
Tipo:  Artigo em periódico indexado (ALICE)
Idioma:  Inglês
Identificador:  1806-9290 (online)

12926

http://www.alice.cnptia.embrapa.br/handle/doc/504051

http://ainfo.cnptia.embrapa.br/digital/bitstream/item/112581/1/12926.pdf

10.1590/S1516-35982006000200003.
Editor:  Revista Brasileira de Zootecnia, Viçosa, MG, v. 35, n. 2, p. 334-342, 2006.
Relação:  Embrapa Acre - Artigo em periódico indexado (ALICE)
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