• Each sample was tested for 6 major mycotoxin groups including,
• A-Trichothecenes (A-Trich): T-2 toxin, HT-2 toxin, Neosolaniol*, Diacetoxyscirpenol
• B-Trichothecenes (B-Trich): Deoxynivalenol (DON/Vomitoxin), 3-Acetyl-deoxynivalenol, 15-Acetyl-deoxynivalenol, Nivalenol*, Fusarenon X*
• Fumonisins (FUM): B1, B2, B3*
• Zearalenone (ZEN)
• Aflatoxins (Afla): B1, B2, G1, and G2
• Ochratoxin A (OTA)
• In Canada, samples are also routinely screened for Mycophenolic Acid (MPA) and Sterigmatocystin (STC).

*Not screened for in Canada

• The survey results represent samples sent in for surveillance testing only and does not include any sample submitted following clinical signs.
• Below we discuss trends of each of these feed ingredients regarding mycotoxin occurrence. Additional details including mean contamination levels and risk by state or province can be found by downloading the full report.

• Based on the 185 corn grain samples tested to date, surveillance of 2024 crop suggests a slight increase in occurrence of B-Trichothecenes (+4% points) while Zearalenone and A-Trichothecenes occurrence is similar (-1% points and -3% points, respectively) and occurrence of Fumonisins and Aflatoxins appears to be down (-23% points and -7% points, respectively) vs. 2023 crop year results.
• It is important to keep in mind that as of August 1, 2023, Romer Labs implemented the updated PLUS Method featuring enhanced sensitivity. Changes in laboratory methods including lowered limits of detection (LOD) may influence historical comparisons vs. 2023 and 2024 survey results.

• Based on the 54 corn silage samples tested to date, surveillance of 2024 crop suggests a decrease in the occurrence of B-Trichothecenes (-10% points) and Zearalenone (-4% points) with increased occurrence of Fumonisins (+17% points) and A-Trichothecenes (+3% points) vs. 2023 crop year results.

Mycotoxin Services & Tools