Review: Fifty years of research on rumen methanogenesis: lessons learned and future challenges for mitigation
KA Beauchemin, EM Ungerfeld, RJ Eckard, M Wang
Animal | CAMBRIDGE UNIV PRESS | Published : 2020
Meat and milk from ruminants provide an important source of protein and other nutrients for human consumption. Although ruminants have a unique advantage of being able to consume forages and graze lands not suitable for arable cropping, 2% to 12% of the gross energy consumed is converted to enteric CH4 during ruminal digestion, which contributes approximately 6% of global anthropogenic greenhouse gas emissions. Thus, ruminant producers need to find cost-effective ways to reduce emissions while meeting consumer demand for food. This paper provides a critical review of the substantial amount of ruminant CH4-related research published in past decades, highlighting hydrogen flow in the rumen, th..View full abstract
Awarded by National Natural Science Foundation of China
Awarded by Comision Nacional de Investigacion Cientifica y Tecnologica, Santiago, Chile
The authors thank the organising committee of the International Symposium on Ruminant Physiology (ISRP) for their invitation and encouragement to prepare this review. We thank the anonymous reviewers whose critiques and comments greatly improved the manuscript. Dr Min Wang thanks National Natural Science Foundation of China (Grant No. 31561143009), and Dr Emilio Ungerfeld thanks Comision Nacional de Investigacion Cientifica y Tecnologica, Santiago, Chile, for financial support (project Fondecyt 1160764).