Feed additives for methane mitigation: A guideline to uncover the mode of action of antimethanogenic feed additives for ruminants

This publication aims to provide guidelines of the knowledge required and the potential research to be conducted in order to understand the mode of action of antimethanogenic feed additives (AMFA). In the first part of the paper, we classify AMFA into 4 categories according to their mode of action:...

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Detalles Bibliográficos
Autores: Belanche, A., Bannink, A., Dijkstra, J., Durmic, Z., Garcia, F., Santos, F.G., Huws, S., Jeyanathan, J., Lund, P., Mackie, R.I., McAllister, T.A., Morgavi, Diego P., Muetzel, S., Pitta, D.W., Yáñez Ruiz, David R., Ungerfeld, E.M.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2025
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/388233
Acceso en línea:http://hdl.handle.net/10261/388233
Access Level:acceso abierto
Palabra clave:Methanogens
Mitigation
Rumen methanogenesis
Rumen microbiota
Descripción
Sumario:This publication aims to provide guidelines of the knowledge required and the potential research to be conducted in order to understand the mode of action of antimethanogenic feed additives (AMFA). In the first part of the paper, we classify AMFA into 4 categories according to their mode of action: (1) lowering dihydrogen (H) production; (2) inhibiting methanogens; (3) promoting alternative H-incorporating pathways; and (4) oxidizing methane (CH). The second part of the paper presents questions that guide the research to identify the mode of action of an AMFA on the rumen CH production from 5 different perspectives: (1) microbiology; (2) cell and molecular biochemistry; (3) microbial ecology; (4) animal metabolism; and (5) cross-cutting aspects. Recommendations are provided to address various research questions within each perspective, along with examples of how aspects of the mode of action of AMFA have been elucidated before. In summary, this paper offers timely and comprehensive guidelines to better understand and reveal the mode of action of current and emerging AMFA.

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