Animal Waste Management and the Environment:

Animal waste includes livestock and poultry manure, bedding and litter, plus such things as dairy parlor waste water, feedlot runoff, silage juices from trench silos and even wasted feed. These wastes can affect water quality if proper practices are not followed. These protective practices are very often referred to as best management practices (BMPs) and includes facilities or structures, management practices or vegetative cover.

The link address is: http://www.engr.uga.edu/service/extension/publications/c827-cd.html