CFR
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556.428—Narasin.
(a) Acceptable daily intake (ADI).
The ADI for total residues of narasin is 5 micrograms per kilogram of body weight per day.
(b) Tolerances—
(1)
Chickens (abdominal fat ). The tolerance for parent narasin (the marker residue) is 480 parts per billion.
Code of Federal Regulations
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