Home Itens selecionados Provedores de dados OAI Créditos Sobre Ajuda

			Busca avançada
	Provedor de dados Arq. Bras. Med. Vet. Zootec. (2) Autor Aello,M.S. (2) Di Marco,O.N. (2) Arias,S. (1) Palavra-chave Activity cost (1) Cattle (1) Corn silage (1) Energy (1) Grazing cost (1) In situ (1) In vitro and in vivo digestibility (1) Maintenance requirement (1) Ruminal kinetics (1) Walking cost (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2005 (1) 2001 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Energy expenditure due to forage intake and walking of grazing cattle Arq. Bras. Med. Vet. Zootec. Di Marco,O.N.; Aello,M.S.. The relative increment in daily maintenance requirement by physical activity was estimated in free-grazing cattle. The effects of forage harvesting and walking were measured and expressed as an index in relation to the value of energy expenditure of animals in corrals. All indices were obtained from experiments conducted in Balcarce (Argentina) from 1993 to 1995. Energy expenditure of Aberdeen Angus steers was estimated by the 14C-entry rate technique, on animals standing still in a corral, grazing at two different biting rates or walking at four different speeds. Information on time spent on grazing and distance traveled was obtained from the literature. These estimations indicate that the maintenance cost of cattle in corrals could be increased on... Tipo: Info:eu-repo/semantics/article Palavras-chave: Cattle; Energy; Activity cost; Maintenance requirement; Grazing cost; Walking cost. Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352001000100017 Digestibility and ruminal digestion kinetics of corn silage Arq. Bras. Med. Vet. Zootec. Di Marco,O.N.; Aello,M.S.; Arias,S.. The in situ dry matter (DM) disappearance of corn silages in two maturity stages (milk grain and half milk line) of known in vivo and in vitro digestibility was determined, with the main purpose of comparing digestibility values with the ruminal disappearance at 24 and 48h of incubation. A secondary goal was the description of their ruminal digestion kinetics, from which the effective degradability was calculated at an assumed passage rate of 4%/h. Data of in vivo, in vitro and in situ degradability at 24 and 48-h were analyzed with a linear model that included as fixed effects the maturity and the methodology of evaluation, and the kinetic data were described by the exponential model of McDonald. There was a significant effect (P<0.05) of methodology... Tipo: Info:eu-repo/semantics/article Palavras-chave: Corn silage; In situ; In vitro and in vivo digestibility; Ruminal kinetics. Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352005000200014 Registros recuperados: 2 Primeira ... 1 ... Última

Empresa Brasileira de Pesquisa Agropecuária - Embrapa Todos os direitos reservados, conforme Lei n° 9.610 Política de Privacidade Área restrita		Embrapa Parque Estação Biológica - PqEB s/n° Brasília, DF - Brasil - CEP 70770-901 Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco