Cows on pasture
Dairy cows out on pasture.

Sources of agricultural non-point pollution continue to be a major contributor to degradation of water quality in the Great Lakes Basin. These sources include sediment pollution from erosion and soil loss on active cropland, loss of riparian vegetation in pastures and the associated stream bank erosion, nutrient loading from the application of agricultural wastes, the spread of pathogens, and runoff containing pesticides. Prescribed Grazing Management has been shown to control and reduce all of the above-mentioned sources of agricultural pollution. The exclusion of livestock from streams, a required component of rotational grazing plans, furthers the re-establishment of riparian vegetation and eliminated the direct application of animal waste into water bodies.

Reduced bank erosion improves fisheries habitat and reduced nutrients introduced into the system are benefits from stream exclusion. These reductions are only realized when all of the components of a rotational grazing plan are installed and maintained.

Exclusion fencing
Fencing used to control livestock access to the stream.

The practices that were planned for each of the farms were designed for the main purpose of limiting or removing the livestock access from the streams or water body adjacent to the rotationally grazed pasture. The fences will allow for the regeneration of stream side vegetation to act as a sediment and nutrient filter to the stream. Revisions on some of the grazing system plans occurred during construction of the systems. The final results of the seven systems being installed include:
• 26,101 feet of fence reducing access to 6000 feet of streams
• 4 Controlled Stream Crossings
• 6 alternative watering systems
• all livestock removed from the water bodies where they had previous access
• 1 pasture walk on True farm with 25 participants attending, 1 pasture tour on Brooks Farm with 15 people in attendance, 1 pasture walk on Cornwall farm pending. Additional pasture walks on Jakubowski and Heineman farms planned for 2007 pasture season.