Skip to main content
Animal Nutrition & Health
Search Clear search
SearchSite Search

Mycotoxin Survey in North America: April 2025 Update

Our April 2025 update from the annual PROcheck mycotoxin survey is here! Contact your dsm-firmenich representative to learn how to submit samples for analysis and contribute to the survey.

×

Trouble viewing this video? Watch it now on YouTube.

2024 US and Canada Corn Ingredient Survey Reports

  • 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.

USA Corn

  • 214 samples submitted from 13 states. 96% of samples have originated from the Midwest.
  • Overall occurrence for corn samples:

Occurrence

2024

2023

Total positive

90%

94%

>1 Mycotoxin/sample

74%

78%

  • Occurrence status by mycotoxin group:

Mycotoxins

2024

2023

A-Trichothecenes

15%

18%

B-Trichothecenes

69%

64%

Fumonisins

58%

82%

Zearalenone

71%

72%

Aflatoxins

3%

10%

Ochratoxin A

1%

1%

  • Based on the 214 corn grain samples tested to date, surveillance of 2024 crop suggests a slight increase in occurrence of B-Trichothecenes (+5% 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 (-24% 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.
Download US Corn Grain Report

USA Corn Silage

Available upon request. Contact your dsm-firmenich representative to access this report.

Canada Corn

Available upon request. Contact your dsm-firmenich representative to access this report.

Canada Corn Silage

Available upon request. Contact your dsm-firmenich representative to access this report.

Continued monitoring and surveillance of 2024 crop ingredients is warranted to provide on-going characterization of contamination patterns and trends in North America.

Results based on the samples analyzed in the region to date.

Mycotoxin Services & Tools

  • Mycotoxin PROcheck

    A 5-step comprehensive mycotoxin risk management service program designed to counteract the mycotoxins occurring in feed ingredients, and to safeguard the health and performance of your animals.

  • Mycotoxin Detection

    We offer a range of analytical services to customers to assess the mycotoxin contamination of feed materials.