You are using an unsupported browser. This web site is designed for the current versions of Microsoft Edge, Google Chrome, Mozilla Firefox, or Safari.
The Office of the Federal Register publishes documents on behalf of Federal agencies but does not have any authority over their programs. We recommend you directly contact the agency associated with the content in question.
If you have comments or suggestions on how to improve the www.ecfr.gov website or have questions about using www.ecfr.gov, please choose the 'Website Feedback' button below.
If you would like to comment on the current content, please use the 'Content Feedback' button below for instructions on contacting the issuing agency
Enhanced content is provided to the user to provide additional context.
This content is from the eCFR and is authoritative but unofficial.
Navigate by entering citations or phrases (eg: 1 CFR 1.1 49 CFR 172.101 Organization and Purpose 1/1.1 Regulation Y FAR).
Choosing an item from citations and headings will bring you directly to the content. Choosing an item from full text search results will bring you to those results. Pressing enter in the search box will also bring you to search results.
Background and more details are available in the Search & Navigation guide.
The in-page Table of Contents is available only when multiple sections are being viewed.
Use the navigation links in the gray bar above to view the table of contents that this content belongs to.
21 U.S.C. 321, 342, 348, 371.
This content is from the eCFR and may include recent changes applied to the CFR. The official, published CFR, is updated annually and available below under "Published Edition". You can learn more about the process here.
Subscribe to: 21 CFR 584.725
No changes found for this content after 1/03/2017.
View the most recent official publication:
These links go to the official, published CFR, which is updated annually. As a result, it may not include the most recent changes applied to the CFR. Learn more.
Information and documentation can be found in our developer resources.
The Code of Federal Regulations (CFR) is the official legal print publication containing the codification of the general and permanent rules published in the Federal Register by the departments and agencies of the Federal Government. The Electronic Code of Federal Regulations (eCFR) is a continuously updated online version of the CFR. It is not an official legal edition of the CFR.
Learn more about the eCFR, its status, and the editorial process.
(a) Product. 25-Hydroxyvitamin D3 (9,10-secocholesta-5,7,10(19)-triene-3β, 25-diol).
(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.
(2) The product must comply with the following specifications:
(i) Not less than 94.0 percent 25-hydroxyvitamin D3.
(ii) Not more than 1 percent of any individual sterol.
(iii) Not more than 5 percent water.
(iv) Not more than 20 parts per million (ppm) lead.
(v) Not more than 20 ppm aluminum.
(vi) Not more than 1.0 percent solvents and non-detectable levels of 2′. 4′. 5′. 7′-tetraiodofluorescin.
(3) Product labeling shall bear the following:
(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.
(iii) An expiration date on all premix labeling.
(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.
[72 FR 12564, Mar. 16, 2007]