Cooperative Extension Fact Sheet FS1190 | September 2013
A sacrifice or exercise area is your horse's outdoor living space. It is called a sacrifice area because you are giving up land that could be used as a pasture in order to protect and maintain the remaining pasture area, which is saved for rotational grazing, hay production, forage stockpiling, etc.
A sacrifice area can be used to secure horses while stalls in the barn are cleaned or routine pasture and field maintenance (dragging, clipping, etc.) is completed. The use of a sacrifice area can result in increased pasture productivity because it gives you a place to keep the horses when you need to keep them off the pasture. For example, pastures cannot survive continuous grazing and trampling during non-growing seasons and droughts. Other situations where they are useful include when the ground is muddy, when there is frost on the grass, and anytime the grass needs rest, such as a long period after grazing.
Sacrifice areas should be located as far away from wetlands, surface water, and wells as possible. They also should not be located in drainage flows, such as ditches, and preferably on a level area at the top of a hill. Sacrifice areas should be surrounded by a thick stand of grasses that can filter sediment and nutrients washed from the sacrifice area. A common way to do this would be to have the sacrifice area surrounded by pastures that may be used for rotational grazing. It may be convenient to install gates in the sacrifice area where it leads to pastures. Manure should be collected from a sacrifice area for disposal. The sacrifice area should be located close enough to the manure storage area to improve the ease of collection.
Since these areas may not be vegetated, they are likely to become muddy in wet or inclement weather. Wood chips, sand, and/or gravel, or even concrete may be used to provide an improved foundation to keep any area where mud accululates small. Feed, water and shelter structures that are in the sacrifice area should have appropriate foundations surrounding them to prevent erosion from hoof traffic.
There are two strategies to sizing and maintaining sacrifice areas: either keep the area just large enough for the needs of the animals and accept the fact that the lot surface will be bare, or use a large sacrifice area that is large enough to maintain a vegetative cover. The latter is preferred for environmental reasons.
Confining animals for more than 45 days in the sacrifice lot can define the area as an animal feeding operation (AFO). If that area has a connection with surface water, such as a stream or ditch running through it, or if it discharges to a water body and is deemed to be a significant risk to surface water by the state regulatory authority, the operation may be required to control the runoff from the sacrifice area and obtain permit coverage. Therefore, it is strongly urged that producers manage their exercise lots and sacrifice areas as seasonal or temporary use, primarily keep animals on pastures, and not locate them in environmentally sensitive locations so as not to impact surface waters.
NJAES Fact Sheet FS618: Equine Barnyard Management (http://njaes.rutgers.edu/pubs/publication.asp?pid=FS618) by William J. Bamka, Burlington County Agricultural Agent & Jeremy W. Singer, Ph.D., USDA-ARS Research Agronomist, Ames, IA. N.J. Agricultural Experiment Station. Rutgers Cooperative Extension. Rutgers, The Stste University of New Jersey.
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