RG-8 Regulatory Guidance:
Contaminants in Feed (formerly RG-1, Chapter 7)
Section 3: Gentian Violet for Use in Livestock Feeds
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The Animal Feed Division has reviewed the safety of gentian violet when used in livestock feeds.
Based on the information available, it has been decided to revoke the approval of this ingredient. The information reviewed did not satisfactorily substantiate the safety of gentian violet when used at 4 ppm in livestock feeds.
Since gentian violet will be removed from our list of acceptable ingredients for use in livestock feed, registration of all products containing gentian violet are cancelled. Regulatory action will be undertaken if gentian violet is found in the marketplace after June 30, 1992.
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