3.1.1.87 fumonisin B1 esterase livestock farming fumonisins are among the most frequently detected mycotoxins in feedstuffs and finished feed. The use of FUMzyme as a feed additive is a promising approach. The enzyme hydrolyzes fumonisins in the gastrointestinal tract of chickens, and therefore reduces the exposure to the toxin in both systemic and intestinal tissues 3.1.1.87 fumonisin B1 esterase livestock farming suitability of the fumonisin esterase FumD as a feed additive (FUMzyme) for the prevention of fumonisin toxicity in pigs. 15 U FUMzyme per kg feed are the minimum effective concentration for detoxification for a fumonisin contamination below the EU guidance value of 5 mg/kg. Of the tested biomarkers for fumonisins, the Sa/So ratio in serum seems best suited for investigation of a fumonisin detoxification feed additive 3.1.1.87 fumonisin B1 esterase livestock farming the mycotoxin fumonisin B1 is a frequent contaminant of feed and causes various adverse health effects in domestic animals. Addition of FUMzyme results in significantly decreased levels of fumonisin B1 in excreta of turkeys and pigs. Carboxylesterase FumD represents an effective strategy to detoxify FB1 in the digestive tract of turkeys and pigs