a specialization of grazing management that defines the periods of grazing and nongrazing —note although descriptive common names may be used, the first usage of a grazing system name is customarily followed by a description that includes number of pastures (or units) number of herds, length of grazing periods, and length of nongrazing periods for any given unit in the system, followed by an abbreviation of the unit of time used —see deferred grazing, deferred rotation, forage, grazing method, rest-rotation, rotation(al) grazing, short-duration grazingThis definition last updated 10/27/2008