§ 186.1400 - Cyromazine.

The additive cyromazine (N-cyclo-propyl-1,3,5-triazine-2,4,6-triamine) may be safety used in accordance with the following prescribed conditions:

(a) It is used as a feed additive only in the feed for chicken layer hens and chicken breeder hens at the rate of not more than 0.01 pound of cyromazine per ton of poultry feed.

(b) It is used for control of flies in manure of treated chicken layer hens and chicken breeder hens.

(c) Feeding of cyromazine-treated feed must stop at least 3 days (72 hours) before slaughter. If the feed is formulated by any person other than the end user, the formulator must inform the end user, in writing, of the 3-day (72 hours) preslaughter interval.

(d) To ensure safe use of the additive, the labeling of the pesticide formulation containing the feed additive shall conform to the labeling which is registered by the U.S. Environmental Protection Agency, and the additive shall be used in accordance with this registered labeling.

(e) Residues of cyromazine are not to exceed 5.0 parts per million (ppm) in poultry feed.