dsm-firmenich has released the results of its World Mycotoxin Survey covering January to September 2025. The survey shows 82% of all samples contained more than one mycotoxin.
Mycotoxins are naturally produced by the fungi that can contaminate feed raw materials in the field and during storage. When ingested by animals, mycotoxins have a wide range of negative effects such as impaired reproduction, digestive disorders, carcinogenicity and reduced performance, the company says.
“The 2025 results reveal a worrying escalation in both mycotoxin prevalence and co-contamination worldwide,” says Ursula Hofstetter, head of mycotoxin risk management at dsm-firmenich. “With over 80% of samples containing multiple toxins, the risks to animal health, productivity and welfare are intensifying. These insights reinforce the urgent need for continuous monitoring, advanced detection and effective mitigation strategies to protect livestock and ensure a safe global food supply chain.”
In the survey, 19,051 samples were analyzed and 105,079 single analyses conducted across 85+ countries. The report delivers critical insights into contamination levels, co-occurrence patterns and regional risk profiles, the company explains.
“Whether in feed production, animal nutrition or food safety, these findings equip professionals with the data needed to safeguard animal health and product integrity,” dsm-firmenich says.
Key highlights in the latest report:
• North America: Livestock faces severe mycotoxin risk with 84% total risk
• DON: 73% occurrence
• ZEN: 79% occurrence
• Central & South America:FUM contamination averages 1,800 ppb
• ZEN hits 94% occurrence in Central America
• South Asia & China/Taiwan:Aflatoxins detected in 85% of South Asian samples
China/Taiwan: DON found in 93% of samples
• East Asia: FUM dominates with 97% occurrence
• Europe: Central Europe: DON at 76%
• Southern Europe: Aflatoxins (44%) and ZEN (60%) pose significant threats
Each year since 2004, dsm-firmenich has analyzed a large number of feed samples from all around the world to understand and monitor contamination levels of the different mycotoxins in a variety of feed ingredients. This information is shared in the annual dsm-firmenich World Mycotoxin Survey.
To download to the dsm-firmenich World Mycotoxin Survey from January to March 2024, follow the link here.


