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Animal unit months (AUMs) in a grazing area (calculated by multiplying the number of animal units by the number of months of grazing) provide a useful indicator of the amount of forage consumed. On public lands in various jurisdictions, authorized use of forage for grazing is commonly expressed in animal unit months.
Livestock grazing comparison is a method of comparing the numbers and density of livestock grazing in agriculture. Various units of measurement are used, usually based on the grazing equivalent of one adult cow, or in some areas on that of one sheep. Many different schemes exist, giving various values to the grazing effect of different types of ...
In the United States, grazing fees are generally charged per AUM (animal unit month). (Some additional fee or fees may be charged in various jurisdictions, e.g. per application.) On US federal grazing land, the grazing fee for 2012 (as for 2011) is $1.35 per AUM. [3] As of 2015, the grazing fee has been increased to $1.69. [3]
Grazing pressure is defined as the number of grazing animals of a specified class (age, species, physiological status like pregnant) per unit weight of herbage (herbage biomass). It is well established in general usage.
Dairy cattle grazing in Germany. In agriculture, grazing is a method of animal husbandry whereby domestic livestock are allowed outdoors to free range (roam around) and consume wild vegetations in order to convert the otherwise indigestible (by human gut) cellulose within grass and other forages into meat, milk, wool and other animal products, often on land that is unsuitable for arable farming.
In animal husbandry, a concentrated animal feeding operation (CAFO), as defined by the United States Department of Agriculture (USDA), is an intensive animal feeding operation (AFO) in which over 1,000 animal units are confined for over 45 days a year. An animal unit is the equivalent of 1,000 pounds of "live" animal weight. [1]
The animals experience less disease and fewer foot ailments, depending on the rotational system being used. Managed rotational grazing is a key component of a regenerative agriculture system, as it functions as a constant feedback loop. [7] Rotational grazing has been said to be more environmentally friendly in certain cases.
The federal grazing fee is adjusted annually and is calculated using a formula originally set by Congress in the Public Rangelands Improvement Act of 1978. [55] Under this formula, the grazing fee cannot fall below $1.35 per animal unit month (AUM), nor can any fee increase or decrease exceed 25 percent of the previous year's level.