Mycotoxins are toxic substances produced by naturally occurring metabolic processes in fungi. The most frequently concurrently occurring non-specific symptoms of mycotoxin contamination in fattening pigs and piglets is decreased feed intake or feed refusal – very typical for deoxynivalenol (DON) contamination and diarrhoea. O. Averkieva and R. Borutova of Nutriad International recommend applying an effective mycotoxin deactivator, which offers an opportunity to significantly improve animal health, performance, productivity and profit impaired by mycotoxins.