The study of mycological composition of feed may helpguiding the detection of toxins [33] despite the impossibil-ity to predict the amount of toxins produced, given the factthat mycotoxin production is linked to different environ-mental factors such as climate [38]. Few studies have so farfocused on the potential contamination of soy by multipletypes of mycotoxins [26]. The aim of this work was to assessthe mycotoxigenic risk of soy samples used for animal feedby a combined study of the mycological composition of soysamples and their toxin content with special attention topotential co-occurrence of fusariotoxins.