Meat and bone meal is a product of fresh, non-deteriorating animal waste tissue and bone after high temperature and high pressure cooking, sterilization, degumming, drying and crushing. Yellow to yellow-brown oily powder with inherent smell of meat and bone meal. No rotten smell, no peculiar smell.
Animal protein products produced in the United States must comply with the uniform standards and composition requirements established by the American Association of Feed Administrators (AAFCO). Meat and bone meal is defined by AAFCO (1996) as a product extracted from mammalian tissues including bones, and other products that do not contain any added blood, hair, hoofs, horns, skin clippings, feces, stomach and rumen meat contents, During processing, it may be unavoidable to contain certain amounts. It should contain a minimum of 4.0% phosphorus (P), and the calcium (Ca) content should not exceed 2.2 times the actual phosphorus (P) content. Among them, the pepsin residue is not more than 12%, and the crude protein in the pepsin product is not more than 9%. The standards should include the following guarantees: minimum crude protein, minimum crude fat, maximum crude fiber, minimum phosphorus (P) content, minimum and maximum calcium (Ca) content. If there is a description of the name and type, composition or place of origin in the standard, it must be consistent with the above.