c. primary feed commodities (ccpr) 11 primary food commodities of plant origin (ccpr) Type 11 - Primary feed commodities of plant origin The primary feed commodities of plant origin include products after removal of certain parts of the plants. Some types of the primary feed commodities are grown and used exclusively for animal feeding purposes, e.g. alfalfa vetch and maize forage. Other types are derived from crops of which the edible parts are used directly or after processing as food, whereas the "waste" parts of these crops are generally used for feeding purposes, e.g. cereal straws, pea vines (fresh = green), pea hay, maize fodder, sugar beet tops or -leaves. requires discussion