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...
Effect of pig slurry solids on aeration efficiency and odour generation
January 1, 2005
Two laboratory-scale experiments were carried out in this study to determine the effect of slurry solids content on aeration efficiency and the odour generation potential for the treated slurry...
Size distribution and composition of particles in raw and anaerobically digested swine manure
January 1, 2005
The design of efficient manure treatment systems requires a better characterization of particle and nutrient distribution in manure slurries. The aim of this project was to study particle size, COD,...
Detection and occurrence of antimicrobially resistant E-coli in groundwater on or near swine farms in eastern North Carolina
January 1, 2005By Anderson
The use of antibiotics for growth promotion and disease treatment by the commercial swine industry has led to high proportions of multiple antibiotic-resistant enteric bacteria being shed by these...
Role of internal nutrient storage in duckweed growth for swine wastewater treatment
January 1, 2005
The objective of this study was to investigate the relationship of the nutrient content of duck-weed biomass to duck-weed growth in swine wastewater. Batch tests of Spirodela punctata 7776, the...
Influence of phytase on water-soluble phosphorus in poultry and swine manure
January 1, 2005
The effect of dietary non-phytin phosphorus (NPP) and phytase (PHY) concentration on total phosphorus (TP) and water-soluble phosphorus (WSP) excretion was determined. Diets tested in broiler...
Manipulation of dietary protein and nonstarch polysaccharide to control swine manure emissions
January 1, 2005
Odor and greenhouse gas (GHG) emissions from stored pig (Sus scrofa) manure were monitored for response to changes in the crude protein level (168 or 139 g kg-1, as-fed basis) and nonstarch...
