The product shall have a sweet odor and should not be heated or contain hard lumps. They are freely available throughout the year. Production is widely distributed in the U.S. or located in a favorable transit network. Year to year production is relatively stable. An important source of energy, protein, minerals, and vitamins.
Heaviest utilization is in ruminant, swine, and horse feeds.
Middlings are also used in some poultry and specialty feeds.