Each sample was tested for 6 major mycotoxin groups of:

• A-Trichothecenes (A-Trich): T-2, HT-2, 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 and contamination levels.

• Of the 185 corn samples tested, initial surveillance suggests that mycotoxin occurrence is relatively increased compared to 2020, with the greatest shifts in B-Trichothecenes (+13% points) and Zearalenone (+6% points).

• Of the 47 corn by-products samples tested (primarily DDGS and corn gluten feed), initial surveillance suggests that mycotoxin occurrence is somewhat increased compared to 2020.

• Although a small data set, based on the 9 corn samples tested, initial surveillance suggests that mycotoxin contamination is relatively lower compared to 2020.