Abstract

Animal feeding operations have come under increased scrutiny as sources of water pollution. Due to the concentration of animals at individual locations and in certain regions, the local environment may not be able to use all of the nutrients contained in the manure. Particularly, problematic are waters being impaired by nitrogen and phosphorus from animal manure. Since federal and state regulations have not been totally successful in precluding water contamination from manure nutrients, scientists and policymakers might seek ways to encourage the use of manure as a resource for crop production. By analyzing diverse state regulations, this paper identifies several strategies that would treat animal waste as a recyclable production input rather than a production byproduct. Citizens and regulators can encourage more sustainable livestock production by proffering regulations that mandate selected production requirements or practices. Agronomic rate regulations, limitations on manure application and timing, lagoon safety requirements, closure mandates, and alternative uses of manure constitute possibilities to remedy some pollution problems