Biuret Usage Guideline
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Biuret was a hot topic of livestock research in the 60s and 70s and almost 50 research articles have been published about biuret since in 1959. Biuret is a feed ingredient that offers many benefits over the use of traditional urea. But because biuret was kept exclusively within the ruminant product portfolio of Moorman Manufacturing (now ADM) until very recently, the history of biuret was unknown to many. Below is the history of the development of feed-grade biuret. Usage Guide Benefits Biuret attracts little water, even in humid conditions, which allows for ease of manufacturing, feed ingredient stability, and good product flowabilty. Biuret is extremely safe. It has been fed at levels 20 times greater than the toxic dose of urea without causing death. Biuret’s unique chemistry makeup controls the release of ammonia which provides a large margin of safety and contributes to production inAlliance Nutrition, Inc., various Logos are © of ADM Quincy, IL 62305-3115 USA unique conditions. www.admani.com • 866-666-7626 For art questions: call Tracie Hall at 217-231-2239 or Tracie.Hall@adm.com Biuret has virtually no handling restrictions, which allows for a predictable process that does not affect the extended ammonia-release Pantone Color Swatches characteristics. 662

Urea Vs. Biuret — Urea gained 45% water vs. biuret that gained 9% water, after 48 hours in a humidity chamber. Chemical Composition Feed definition of feed-grade biuret. Biuret is a non-protein nitrogen (NPN) source for ruminants that is defined by the Code of Federal Regulations in CFR 573.220 and in AAFCO as definition 66.2. Composition and physical characteristics. Biuret typically contains 253% crude protein (38.5% minimum nitrogen guarantee) with no more than 15%' urea. Biuret is composed of small to medium granules and is white to gray in color (see Figure 1). Biuret is chemically...

Time after feeding, hours Biuret’s primary value is its highly controlled conversion to ammonia in the rumen. This provides both a large margin of safety relative to ammonia toxicity and contributes to performance under conditions in which ammonia availability may limit forage intake or rumen function. Cattle on range and lower-quality pasture: Because ammonia is a critical nutrient for fiber-digesting bacteria, insufficient rumen ammonia dramatically limits fiber digestion which reduces both forage energy value and feed intake. Because of this, crude protein (nitrogen) is typically the...

Mineral-protein lick blocks: Depending on target consumption (block hardness), biuret can be used at up to 15% of high-protein blocks. Biuret will have little impact on block hardness. Tubs (cooked or pressed): Considering target intake for most tub products, biuret inclusion will rarely need to exceed 10% of the formula. At the highest protein levels, urea can comprise up to one third of the NPN. However, during drought or any conditions where forage availability is limited, it is recommended that the urea level be reduced in these higher protein products due to the possible risk of...