Classification of feed ingredients

• Feed ingredients are classified into one of eight classes depending on their proximate chemical composition and intended dietary use.

1. Class 1: Dry forages and roughages, including hay, straw, fodder (aerial part), stover, hulls, and other products with more than 18 % crude fiber ( i.e. rice bran, seed coats, pods, etc)
2. Class 2: Concentrates, which are less bulky contain less than 18% crude fiber and are rich in energy and protein.
3. Class 3: Silages, including only ensiled forages ( i.e. maize, alfalfa, grass, etc.) and excluding ensiled fish, grain, roots, and tubers.
4. Class 4: Energy feeds, including products with less than 20% protein ( dry basis) and less than 15% crude fiber ( i.e. grain, mill by-products)
5. Class 5: Protein supplements, including products containing 20% or more protein ( dry basis) from animal origin ( including ensiled products) as well as oil meals, gluten, etc.
6. Class 6: Mineral supplements
7. Class 7: Vitamin supplements, including ensiled yeast.
8. Class 8: Additives, including antibiotics, coloring materials, flavors, hormones,s, and medicaments.