Preliminary investigation of air bubbling and dietary sulfur reduction to mitigate hydrogen sulfide and odor from swine waste
January 1, 2005By Grant Clark
When livestock manure slurry is agitated, the sudden release of hydrogen sulfide (H2S) can raise concentrations to dangerous levels. Low-level air bubbling and dietary S reduction were evaluated as...
Dissimilatory iron reduction and odor indicator abatement by biofilm communities in swine manure microcosms
January 1, 2005By Bruns|M.A
Animal waste odors arising from products of anaerobic microbial metabolism create community relations problems for livestock producers. We investigated a novel approach to swine waste odor reduction:...
PHOSPHORUS RUNOFF POTENTIAL OF VARYING SOURCES OF MANURE APPLIED TO FESCUE PASTURES IN VIRGINIA
January 1, 2005
The P Index for Virginia uses coefficients describing the risk of P runoff from pastures for different nutrient sources, but these coefficients have not been verified on Virginian soils. An...
Deodorization of swine manure using minced horseradish roots and peroxides
January 1, 2005By Jerzy Dec
Public concerns about offensive odors from livestock manures are on the rise and so is the pressure to develop practical ways to reduce the odors. The use of minced horseradish (Armoracia rusticana...
Management strategy impacts on ammonia volatilization from swine manure
January 1, 2005
Ammonia emitted from manure can have detrimental effects on health, environmental quality, and fertilizer value. The objective of this study was to measure the potential for reduction in ammonia...
Demonstrating Innovative Use of Precision Farming Technologies to Optimize Manure Nutrient Utilization and Reduce Environmental Concerns
January 1, 2005By Dr. Richard Wolkowski
The uniform application of manure is difficult and often leads to questions of available nutrient credits. For these reasons farmers and their consultants often discount the value of these nutrients...
Field-scale evaluation of phosphorus leaching in acid sandy soils receiving swine waste
January 1, 2005By Nathan O. Nelson
Accurate descriptions of P leaching are important because excess P applied to soils can enter surface water via leaching and subsurface transport, thereby negatively impacting water quality. The...
Gas and odor emissions from swine building materials
January 1, 2005
Gas and odor emissions produced by twelve different materials commonly used in typical swine buildings were measured using a method based on ASTM standard D-5116 After being submerged for 72 h in...
Loss of Virulence Genes in Escherichia coli Populations during Manure Storage on a Commercial Swine Farm
January 1, 2005By Patrick Duriez
Confined livestock production farms typically store their wastes prior to land application. Here, we employed three complementary approaches to evaluate changes in the population structure and...
Assessment of an aerosol treatment to improve air quality in a swine concentrated animal feeding operation (CAFO)
January 1, 2005By Timothy J. Buckley
Poor air quality within swine concentrated animal feeding operations (CAFOs) poses a threat to workers, the surrounding community, and farm production. Accordingly, the current study was conducted to...
