Aflatoxin

FDA has established Action Levels on the amount of aflatoxin allowable in corn.  The maximum legal level of aflatoxin in feed grains for interstate commerce is 20 ppb.

End use of grain

Aflatoxin action level
(parts per billion)

Corn for animal feed and feed ingredients for dairy animals

20

Corn for human consumption

20

Corn grain for breeding cattle, swine and mature poultry 

100

Corn grain intended for finishing swine of 100 lbs.  or greater

200

Corn grain intended for finishing beef cattle 

300

Source: FDA Regulatory Guidance for Toxins and Contaminants.

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