The present invention relates to a tall oil fatty acid which is modified by saponification for use in the prevention of growth of harmful bacteria in the animal digestive tract and/or in the prevention of intestinal disorders. The invention further relates to a feed supplement and a feed composition comprising tall oil fatty acid which is modified by saponification.La présente invention concerne l'utilisation d'un acide gras de tallöl qui est modifié par saponification pour la modulation de la population microbienne des voies digestives d'un animal.
