Chapter 66
AAFCO 2024 Chapter 6 Ingredient Definitions - Chapter 66
Total ingredients in this chapter: 5
Chapter Overview
AAFCO Official Publication Chapter 6 contains ingredient definitions for animal feed and pet food. Chapter 66 covers 5 specific ingredients.
Ingredient List
66.1 Urea
is predominantly urea but may contain other non-toxic nitrogenous compounds which are present as by-products from the commercial synthesis and processing of Urea. It must contain not less than 45% nitrogen (equivalent to 281.25% crude protein). If it contains less than 45% N but 41% or more N, it must be designated as “Urea and Conditioner(s).” If the name of the conditioner(s) does not appear in the product name, the ingredient listing must contain the specific name of the conditioner(s). If t
66.2 Feed Grade Biuret
is predominantly composed of biuret (55% minimum) together with related non-toxic nitrogenous compounds resulting from the controlled pyrolysis of urea and subsequent processing. It must contain not less than 35% nitrogen (equivalent to 218.7% crude protein) with not more than 15% nitrogen (equivalent to 93.75% crude protein) being from urea. It shall not contain more than 0.5% mineral oil. The label of the additive and of any feed additive supplement, feed additive concentrate, feed additive p
66.3 Gelatinized Starch-Urea Product
is obtained by processing a mixture of finely ground grains or other carbohydrate containing materials with urea under regulated conditions of temperature (250 to 250°F), moisture (15 to 30%) and pressure (400 to 500 p.s.i.). It is to be used in the feed of ruminants as a source of protein and/or as the sole source of non-protein nitrogen in an amount not to exceed 25% of the total ration. The label of the additive and of any feed additive supplement, feed additive concentrate, or feed additive
66.4 Liquid Starch-Controlled Urea Product
is obtained by processing a slurry of finely ground grains or other carbohydrate-containing materials with urea in a hydroheater under regulated conditions of temperature (250 to 350°F), moisture (50 to 70%) and pressure (15 to 150 p.s.i.). It is to be used in the feed of ruminants as a source of protein and/or as the sole source of non-protein nitrogen in an amount not to exceed 25% of the total ration. The label of the additive and of any feed additive supplement, feed additive concentrate or
66.5 Fermented Ammoniated Condensed Whey
is the product produced by the Lactobacillus bulgaricus or Lactobacillus delbrueckii fermentation of whey with the addition of ammonia. It must contain 35% to 55% crude protein and not more than 42% equivalent crude protein from non-protein nitrogen. It is to be used as a source of crude protein and non-protein nitrogen for cattle. The label of the additive and of any feed additive supplement, feed additive concentrate or feed additive premix prepared therefrom must contain the following inform