An anticoccidial disinfection formulation containing a compound represented by general formula (I) below as an active ingredient:R1—；N═；C═；S ； ；(I)[In formula (I), R1 represents an alkenyl group having 2 to 8 carbon atoms or the like] This compound has a high sporulation inhibitory activity against coccidian oocysts and is thus effective for eradicating coccidians and for disinfecting rearing facilities and rooms of host animals, such as a livestock barn and a poultry house.
