Data/hora: 11/06/2024 12:45:58

Provedor de dados: 	96	
País: 	Brazil	
Título: 	Sward structural characteristics and ingestive behaviour of beef heifers in a Pearl Millet pasture	
Autores: 	Montagner,Denise Baptaglin; Rocha,Marta Gomes da; Genro,Teresa Cristina Moraes; Quadros,Fernando Luiz Ferreira de; Roman,Juliano; Roso,Dalton.	
Data: 	2009-09-01	
Ano: 	2009	
Palavras-chave: 	Bite rate; Grazing time; Leaf blade bulk density; Pennisetum americanum; Rumination time.	
Resumo: 	Ingestive behaviour of beef heifers and sward structural characteristics of Pearl Millet (Pennisetum americanum (L.) Leeke) were evaluated. The experiment was carried out in a randomized complete design following a repeated measure arrangement (three experimental periods) with three replications of two leaf blade masses (600 and 1,000 kg/ha DM), which were maintained using continuous grazing with variable stocking rate. The variables measured were sward height, herbage mass, leaf blade and stem bulk density in sward vertical strata (sward structural characteristics), grazing, idling, rumination time and bite rate of heifers (ingestive behaviour). Bite rate was modified by pasture management and was lower when the leaf blade mass was 1,000 kg/ha DM. The daily grazing, rumination and idling time of beef heifers were similar for both leaf blade masses. Structural variation of the sward, during the experimental period, altered the grazing, rumination and idling time of heifers, and affected the bite rate. In Southern Brazil, the beef heifers concentrate their grazing activities in the 12 p.m. to 6:00 p.m. period, decreasing the grazing between 12 a.m. and 6:00 a.m., even in the hottest season of the year.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982009000900005	
Editor: 	Sociedade Brasileira de Zootecnia	
Relação: 	10.1590/S1516-35982009000900005	
Formato: 	text/html	
Fonte: 	Revista Brasileira de Zootecnia  v.38 n.9 2009	
Fonte: 	info:eu-repo/semantics/openAccess