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|Title:||Methane emissions and estimates of ruminal fermentation parameters in beef cattle fed different dietary concentrate levels.|
|Authors:||PEDREIRA, M. dos S.|
OLIVEIRA, S. G. de
LIMA, M. A. de
FRIGHETTO, R. T. S.
BERCHIELLI, T. T.
|Affiliation:||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.|
|Citation:||Revista Brasileira de Zootecnia, Viçosa, v. 42, n. 1 , p. 592-598, 2013.|
|Description:||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.|
Gado de corte
|NAL Thesaurus:||Greenhouse gases|
|Type of Material:||Separatas|
|Appears in Collections:||Artigo em periódico indexado (CNPMA)|