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BIOMIN Mycotoxin Survey in US & Canada Corn Silage Update: April 2022 Update

Our latest update from the annual Biomin® PROcheck mycotoxin survey comprising 109 samples of corn silage from the US and Canada is here.

US & Canada Silage Report

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
Ocharatoxin A (OTA)

BIOMIN Mycotoxin Survey in US & Canada Corn Silage Update: April 2022

Summary

    The survey results represent samples sent in for surveillance testing only and does not include any sample submitted following clinical signs. Below we discuss preliminary trends of each of these feed ingredients regarding mycotoxin prevalence and contamination levels.

    USA Corn Silage

    • Overall occurrence for corn silage samples:

    Occurrence

    2021

    2020

    Total positive

    95%

    99%

    >1 Mycotoxin/sample

    69%

    46%

    • Occurrence status by mycotoxin group:

    Mycotoxins

    2021

    2020

    A-Trichothecenes

    2%

    11%

    B-Trichothecenes

    89%

    99%

    Fumonisins

    20%

    23%

    Zearalenone

    67%

    31%

    Aflatoxins

    0%

    0%

    Ochratoxin A

    0%

    0%

    • Of the 64 corn silage samples tested, surveillance suggests that mycotoxin occurrence is relatively similar to 2020 other than a substantial increase in Zearalenone occurrence (+36% points).

    Canadian Corn Silage

    • Overall occurrence for corn silage samples:

    Occurrence

    2021

    2020

    Total positive

    96%

    94%

    >1 Mycotoxin/sample

    78%

    84%

    • Occurrence status by mycotoxin group:

    Mycotoxins

    2021

    2020

    A-Trichothecenes

    13%

    78%

    B-Trichothecenes

    96%

    94%

    Fumonisins

    44%

    51%

    Zearalenone

    60%

    25%

    Aflatoxins

    0%

    0%

    Ochratoxin A

    0%

    1%

    • Of the 45 corn silage samples tested, surveillance suggests that mycotoxin occurrence is relatively similar for B-Trichothecenes and Fumonisins with substantial changes in the occurrence of Zearalenone (+35% points) and A-Trichothecenes (-65% points).

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