Data/hora: 12/06/2024 13:48:05

Provedor de dados: 	86	
País: 	Brazil	
Título: 	Pasture characteristics of Italian ryegrass and milk production under different management strategies	
Autores: 	Miguel,Marcolino Frederico; Ribeiro Filho,Henrique Mendonça Nunes; Crestani,Steben; Ramos,Fabiana da Rocha; Genro,Tereza Cristina Moraes.	
Data: 	2012-06-01	
Ano: 	2012	
Palavras-chave: 	Lolium multiflorum; Dairy cow; Herbage intake; Sward structure.	
Resumo: 	The objective of this work was to assess the effects of the sward structure of Italian ryegrass (Lolium multiflorum), during the first grazing cycle, on its morphological and bromatological characteristics throughout the growing season, and on the performance of dairy cows. The treatments consisted of two structures obtained as a function of canopy-light interception: high-light interception (HLI) and low-light interception (LLI), with different pre-grazing heights in the first grazing cycle. Pasture was managed under rotational grazing with a herbage allowance not below 30 kg dry matter (DM) per cow per day. Three grazing cycles, with a grazing interval of 30 days, were evaluated. Pre-grazing herbage mass was greater (2,240 vs. 1,656 kg ha-1 DM), but the proportion of leaf blades was smaller (0.35 vs. 0.43) for HLI swards. Neutral detergent fiber (NDF) content and organic matter digestibility (OMD) were similar between treatments in the first grazing cycle, but in the second and third ones NDF was greater, and OMD lower, for the HLI swards. Milk yields were greater for cows grazing LLI swards (19.4 vs. 21.1 kg per day). Initial grazing with 90% of light interception promotes greater nutritional value in the subsequent cycles.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2012000600018	
Editor: 	Embrapa Secretaria de Pesquisa e Desenvolvimento

Pesquisa Agropecuária Brasileira	
Relação: 	10.1590/S0100-204X2012000600018	
Formato: 	text/html	
Fonte: 	Pesquisa Agropecuária Brasileira  v.47 n.6 2012	
Fonte: 	info:eu-repo/semantics/openAccess