Data/hora: 03/06/2024 18:27:16

Provedor de dados: 	96	
País: 	Brazil	
Título: 	Grazing management strategies for massaigrass-forage peanut pastures: 2. productivity, utilization and sward structure	
Autores: 	Andrade,Carlos Mauricio Soares de; Garcia,Rasmo; Valentim,Judson Ferreira; Pereira,Odilon Gomes.	
Data: 	2006-04-01	
Ano: 	2006	
Palavras-chave: 	Arachis pintoi; Defoliation intensity; Grazing depth; Legume; Morphological composition; Western Amazon.	
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 post-grazing 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.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982006000200003	
Editor: 	Sociedade Brasileira de Zootecnia	
Relação: 	10.1590/S1516-35982006000200003	
Formato: 	text/html	
Fonte: 	Revista Brasileira de Zootecnia  v.35 n.2 2006	
Fonte: 	info:eu-repo/semantics/openAccess