The invention relates to the use of a composition for treating the surfaces of livestock buildings and/or the material therein in order to eliminate and/or inhibit pathogenic protozoa, and in particular coccidiosis oocysts. According to the invention, said composition essentially comprises the combination of an alkylamine and of a quaternary ammonium or of a quaternary ammonium derivative.Linvention concerne lutilisation dune composition pour le traitement des surfaces des bâtiments délevage et/ou de leur matériel afin déliminer et/ou dinhiber des protozoaires pathogènes, et en particulier les oocystes de coccidiose. Selon linvention ladite composition consiste essentiellement en lassociation dune alkylamine et dun ammonium quaternaire ou dun dérivé dammonium quaternaire.
