The present invention relates to a new class of methanogen inhibitors for ruminants. The invention also extends to the use of such compounds in ruminants to reduce methane production in the rumen and/or to enhance productivity in the ruminant.

The present invention relates to a new class of methanogen inhibitors for ruminants. The invention also extends to the use of such compounds in ruminants to reduce methane production in the rumen and/or to enhance productivity in the ruminant.