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), Acetyl-deoxynivalenol, Nivalenol, Fusarenon X
• Fumonisins (FUM): B1, B2, B3
• Zearalenone (ZEN)
• Aflatoxins (Afla): B1, B2, G1, and G2
• Ochratoxin A (OTA)
  

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 330 corn grain samples tested to date, surveillance of 2022 crop suggests an increase in the occurrence of Fumonisins (+12% points), Aflatoxins (+2% points), and Zearalenone (+2% points) while B-Trichothecenes occurrence remains steady vs. 2021 crop

• Based on the 91 corn by-products samples tested to date, surveillance of 2022 crop suggests a slight decrease in the occurrence of B-Trichothecenes (-2% points) and Zearalenone (-7% points) while occurrence of Fumonisins remains steady vs. 2021 crop

• Based on the 82 corn silage samples tested to date, surveillance of 2022 crop suggests an increase in the occurrence of Fumonisins (+9% points) and B-Trichothecenes (+5% points) with a decrease in occurrence of Zearalenone (-18% points) vs. 2021 crop.

• Based on the 11 corn grain samples tested to date, surveillance of 2022 crop suggests an increase in the occurrence of several major mycotoxins vs. 2021 crop. However, more sampling is suggested to better characterize this year’s contamination profile.

• Based on the 48 corn silage samples tested to date, surveillance of 2022 crop suggests a slight increase in the occurrence of B-Trichothecenes (+2% points) and A-Trichothecenes (+1% point), but a decrease in the occurrence of most other major mycotoxins vs. 2021 crop. However, more sampling is suggested to better characterize this year’s contamination profile.