Data/hora: 05/06/2024 02:26:05

Biblioteca(s): | Embrapa Meio Ambiente.
Data corrente: | 31/07/2013
Data da última atualização: | 31/07/2013
Autoria: | PEDREIRA, M. dos S.; OLIVEIRA, S. G. de; PRIMAVESI, O.; LIMA, M. A. de; FRIGHETTO, R. T. S.; BERCHIELLI, T. T.
Afiliação: | MÁRCIO DOS SANTOS PEDREIRA, UESB; SIMONE GISELE DE OLIVEIRA, UFPR; ODO PRIMAVESI; MAGDA APARECIDA DE LIMA, CNPMA; ROSA TOYOKO SHIRAISHI FRIGHETTO, CNPMA; TELMA TERESINHA BERCHIELLI, FCAV-UNESP.
Título: | Methane emissions and estimates of ruminal fermentation parameters in beef cattle fed different dietary concentrate levels.
Ano de publicação: | 2013
Fonte/Imprenta: | Revista Brasileira de Zootecnia, Viçosa, v. 42, n. 1 , p. 592-598, 2013.
Idioma: | Inglês
Conteúdo: | Abstract: Using sorghum silage, the effect of roughage/concentrate ratios was evaluated on nutrient intake, digestibility, ruminal parameters and methane production by beef cattle. Three treatments (0, 30 and 60% of concentrate in DM of the diet) were distributed in three Latin squares, with nine animals and three periods. Dry matter intake increased as the grain concentration in diet increased; pH showed opposite behavior. Methane emissions were lower for animals fed the diet exclusively with sorghum silage as compared with those fed 30% of concentrate, but was similar to that of animals receiving 60% of concentrate. Losses of ingested gross energy as methane were reduced by 33% when grain concentration was increased in the diet. Concentrations of propionic and butyric acids were greater in diets with grain concentrate; acetic acid concentration was not affected. Concentrate in diet increases available energy for the metabolism, measured by lower losses of ingested gross energy as ruminal methane.
Palavras-Chave: | SF6.
Thesagro: | Efeito estufa; Gado de corte; Metano; Nutrição animal; Sorgo.
Thesaurus Nal: | Greenhouse gases; Nutritive value; Rumen fermentation; Sulfur hexafluoride.
Categoria do assunto: | P Recursos Naturais, Ciências Ambientais e da Terra
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/86835/1/2013AP14.pdf
Registro original: | Embrapa Meio Ambiente (CNPMA)
Exemplares: | CNPMA - (12718-1) - UPC - AP - DD -  -  -  - DIS