CFR > Title 21 - Food and Drugs > CHAPTER I—FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES > SUBCHAPTER E—ANIMAL DRUGS, FEEDS, AND RELATED PRODUCTS (parts 500 to 590) > PART 573—FOOD ADDITIVES PERMITTED IN FEED AND DRINKING WATER OF ANIMALS > SUBPART B—Food Additive Listing (§573.120 to §573.1020) > 573.540—Hydrolyzed leather meal.

573.540—Hydrolyzed leather meal.

(a) Identity. Hydrolyzed leather meal is produced from leather scraps that are treated with steam for not less than 33 minutes at a pressure of not less than 125 pounds per square inch.
(b) Specifications. The additive shall conform to the following percent-by-weight specifications:
Moisture, not less than 5 percent nor more than 10 percent.
Crude protein, not less than 60 percent.
Crude fat, not less than 5 percent.
Crude fiber, not more than 6 percent.
Chromium, not more than 2.75 percent.
(c) Use. It is used or intended for use as a source of protein in swine feeds in an amount not to exceed 1.0 percent by weight of the finished feed.
(d) Labeling. The labels and labeling shall bear, in addition to the other information required by the Act:
(1) The name of the additive, hydrolyzed leather meal.
(2) Adequate directions to provide finished feeds complying with paragraph (c) of this section.