584.725—25-Hydroxyvitamin D 3 .
(b) Conditions of use.
This substance is generally recognized as safe as a source of vitamin D3 activity in feed or drinking water of broiler chickens when used in accordance with the limitations in paragraph (c) of this section.
(c) Limitations.
(1)
Not to exceed 69 parts per billion (ppb) in feed or 34.5 ppb in drinking water. It shall be used in accordance with good manufacturing and feeding practices.
(vi)
Not more than 1.0 percent solvents and non-detectable levels of 2', 4', 5', 7'-tetraiodofluorescin.
(i)
A statement to indicate that the maximum use level of 25-hydroxyvitamin D3 must not exceed 69 ppb in feed or 34.5 ppb in drinking water.
(ii)
Adequate use directions to ensure that 25-hydroxyvitamin D3 (and all premixes) is uniformly blended throughout the feed or drinking water.
(iv)
A statement on all premix labeling (feed and drinking water forms) that 25-hydroxyvitamin D3 should not be used simultaneously in both feed and water.