| Registro completo |
| Provedor de dados: |
R. Bras. Zootec.
|
| 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
|
| Direitos: |
info:eu-repo/semantics/openAccess
|
