Conclusion
Multiple mycotoxins are frequently found in the forage eaten by horses with increased liver enzymes. Emerging mycotoxins were most commonly identified, type B trichothecenes were most commonly detected at levels that could be a risk to equine health. Nearly half of samples had one or more mycotoxins groups that were detected at a concentration that was ‘medium’ or ‘higher’ risk to animal health. The effects of mycotoxins in horses and synergistic effects of multiple mycotoxins in horses warrant further investigation.