Indiana Animal Number 1988 Animal manures are a natural by-product of the livestock industry.
Many factors affect the pollution potential of animal waste.
Nutrient con- tent of animal waste varies with collection, storage and application methods. Climate conditions also contribute to the effect animal waste might have on water supplies. This bulletin discusses possible water pollution problems from pasture and feedlot systems and the management practices needed protect water supplies. Pasture Systems Pasture and range systems still make up a major portion of livestock production in Indiana. Grazing animals deposit manure directly on the land in pasture manage- ment systems.