The present invention relates to the field of reduction of methane emission in ruminants. Particularly, it relates to the a feed composition or a feed additive, and the use of said feed composition or a feed additive comprising at least one para nitroaniline derivative or a salt thereof and at least one organic molecule substituted at any position with at least one nitrooxy group for reducing the production of methane emanating from the digestive activities of ruminants, and/or to improve the ruminant performance.
