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Determination of methane yield in cattle fed tropical grasses as measured in open-circuit respiration chambers

Ku Vera, Juan Carlos [autor] | Valencia Salazar, Sara Stephanie [autora] | Piñeiro Vázquez, Ángel Trinidad [autor] | Molina Botero, Isabel C [autora] | Arroyave Jaramillo, Julián [autor] | Montoya Flores, María D [autora] | Lazos Balbuena, Freddy J [autor] | Canul Solís, Jorge Rodolfo [autor] | Arceo Castillo, Jeyder Israael [autor] | Ramírez Cancino, Laura [autora] | Escobar Restrepo, Carlos S [autor] | Alayón Gamboa, José Armando [autor] | Jiménez Ferrer, Guillermo [autor] | Zavala Escalante, Lucas M [autor] | Castelán Ortega, Octavio Alonso [autor] | Quintana Owen, Patricia [autora] | Ayala Burgos, Armín Javier [autor] | Aguilar Pérez, Carlos Fernando [autor] | Solorio Sánchez, Francisco J [autor].
Tipo de material: Artículo en línea Artículo en línea Tipo de contenido: Texto Tipo de medio: Computadora Tipo de portador: Recurso en líneaTema(s): Alimento para el ganado | Metano | Pastos | Ganado vacuno | Fermentación del rumen | Emisiones de gases de efecto invernaderoTema(s) en inglés: Livestock feeding | Methane | Grasses | Cattle | Rumen fermentation | Greenhouse gas emissionsNota de acceso: Disponible para usuarios de ECOSUR con su clave de acceso En: Agricultural and Forest Meteorology. Volumen 258 (August 2018), páginas 3-7. --ISSN: 0168-1923Número de sistema: 41289Resumen:
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The objective of this study was to determine methane (CH4) yield by crossbred cattle fed tropical grasses. A total of 66 individual determinations of dry matter intake (DMI) and 42 determinations of organic matter intake (OMI) in relation to the production of enteric CH4 were carried out. Methane measurements in heifers were performed in open-circuit respiration chambers. Heifers (Bos indicus×B. taurus) with an average live weight of 288.5 ± 55.7 kg fed tropical grasses as basal ration were used. An average intake of 8.22 and 7.80 kg of DM and OM per day were recorded. An average enteric CH4 production of 88.0 g/heifer/day was determined. It was found that DMI and OMI in relation to CH4 production have a coefficient of determination (R²) of 0.73 and 0.70 respectively, to predict CH4 emissions. It is concluded that the methane yield (18.07 g CH4/kg DM intake) predicted by regressing DM intake against methane production represents a reliable value to be used for the estimation of enteric CH4 inventories for cattle grazing in the tropical regions of Mexico.
Lista(s) en las que aparece este ítem: GANADERIA SUSTENTABLE Y CAMBIO CLIMATICO
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Disponible para usuarios de ECOSUR con su clave de acceso

The objective of this study was to determine methane (CH4) yield by crossbred cattle fed tropical grasses. A total of 66 individual determinations of dry matter intake (DMI) and 42 determinations of organic matter intake (OMI) in relation to the production of enteric CH4 were carried out. Methane measurements in heifers were performed in open-circuit respiration chambers. Heifers (Bos indicus×B. taurus) with an average live weight of 288.5 ± 55.7 kg fed tropical grasses as basal ration were used. An average intake of 8.22 and 7.80 kg of DM and OM per day were recorded. An average enteric CH4 production of 88.0 g/heifer/day was determined. It was found that DMI and OMI in relation to CH4 production have a coefficient of determination (R²) of 0.73 and 0.70 respectively, to predict CH4 emissions. It is concluded that the methane yield (18.07 g CH4/kg DM intake) predicted by regressing DM intake against methane production represents a reliable value to be used for the estimation of enteric CH4 inventories for cattle grazing in the tropical regions of Mexico. eng

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