Intensive research in the past decade has resulted in a better understanding of factors
driving enteric methane (CH 4) emissions in ruminants. Meta-analyses of large databases …

Methanogenic archaea reside primarily in the rumen and the lower segments of the
intestines of ruminants, where they utilize the reducing equivalents derived from rumen …

A quarter of all anthropogenic methane emissions in the United States are from enteric
fermentation, primarily from ruminant livestock. This study was undertaken to test the effect of …

Ruminant production systems face significant challenges currently, driven by heightened
awareness of their negative environmental impact and the rapidly rising global population …

Enteric methane emissions from livestock are the single largest source of direct greenhouse
gas emissions (GHGs) in beef and dairy value chains and a substantial contributor to …

Increasingly countries are seeking to reduce emission of greenhouse gases from the
agricultural industries, and livestock production in particular, as part of their climate change …

Ruminants, such as cows, sheep, and goats, predominantly ferment in their rumen plant
material to acetate, propionate, butyrate, CO2, and methane. Whereas the short fatty acids …

Human activities account for approximately two-thirds of global methane emissions, wherein
the livestock sector is the single massive methane emitter. Methane is a potent greenhouse …

Globally, there are approximately one billion beef cattle, and compared with poultry and
swine, beef cattle have the poorest conversion efficiency of feed to meat. However, these …

Efforts to reduce the carbon footprint of milk production through selection and management
of low-emitting cows require accurate and large-scale measurements of methane (CH 4) …