Data/hora: 04/06/2024 14:54:12

Provedor de dados: | 96
País: | Brazil
Título: | Methane emissions and estimates of ruminal fermentation parameters in beef cattle fed different dietary concentrate levels
Autores: | Pedreira,Márcio dos Santos; Oliveira,Simone Gisele de; Primavesi,Odo; Lima,Magda Aparecida de; Frighetto,Rosa Toyoko Shiraishi; Berchielli,Telma Teresinha.
Data: | 2013-08-01
Ano: | 2013
Palavras-chave: | Global greenhouse gases; Nutritional value; Rumen fermentation; SF6.
Resumo: | 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.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013000800009
Editor: | Sociedade Brasileira de Zootecnia
Relação: | 10.1590/S1516-35982013000800009
Formato: | text/html
Fonte: | Revista Brasileira de Zootecnia  v.42 n.8 2013
Fonte: | info:eu-repo/semantics/openAccess