Evaluating phosphorus loading from repeated manure applications to two Saskatchewan soils
January 1, 2008
An understanding of the impact of repeated manure additions on soil phosphorus (P) is needed to determine appropriate manure application rates for prairie soils and manure sources. The objective of...
Reuse of concentrated animal feeding operation wastewater on agricultural lands
January 1, 2008
Concentrated animal feeding operations (CAFOs) generate large volumes of manure and manure contaminated wash and run-off water. When applied to land at agronomic rates, CAFO wastewater has the...
ELISA for Sulfonamides and Its Application for Screening in Water Contamination
January 1, 2008By W. SHELVER
Two enzyme-linked immunosorbent assays (ELISAs) were tested for their suitability for detecting sulfonamides in wastewater from various stages in wastewater treatment plants (WWTPs), the river into...
Air pollution and odor in communities near industrial swine operations
January 1, 2008
BACKGROUND: Odors can affect health and quality of life. Industrialized animal agriculture creates odorant compounds that are components of a mixture of agents that could trigger symptoms reported by...
Nitrogen mass balance in fields irrigated with liquid swine
January 1, 2008By S. C. Whalen
Over the past 15-years, swine-producing
confined animal feeding operations (CAFOs) have
proliferated throughout the Southeastern United
States, particularly in North Carolina. Waste at...
The impact of swine lagoon seepage on shallow groundwater quality: Groundwater remediation through lagoon closure and pumping
January 1, 2008By Jon M. Hathaway
Anaerobic lagoons have been used extensively since about 1960 to temporarily store and partially treat livestock waste from concentrated animal production facilities. An earlier study characterized...
Antibiotic Losses in Leaching and Surface Runoff from Manure-Amended Agricultural Land
January 1, 2008By H. Dolliver
A 3-yr field study quantified leaching and runoff losses of antibiotics from land application of liquid hog (chlortetracycline and tylosin) and solid beef (chlortetracycline, monensin, and tylosin)...
Oxidization-reduction potential and pH for optimization of nitrogen removal in a twice-fed sequencing batch reactor treating pig slurry
January 1, 2008By and Yingxu Chen|Weixiang Wu|Zhiying Han
Changes in oxidization-reduction potential (ORP) and pH along with ammonia nitrogen, nitrite nitrogen and nitrate nitrogen in a twice-fed sequencing batch reactor (SBR) treating pig slurry were...
The effects of manure application on soil aggregation
January 1, 2008By C. S. Wortmann
Surface application of manure may increase the risk of phosphorus loss in runoff. Manure application, however, often results in increased soil aggregate stability with reduced runoff and erosion and,...
Environmental Aspects of Ethical Animal Production
January 1, 2008
Livestock and poultry producers face a number of challenges including pressure from the public to be good environmental stewards and adopt welfare-friendly practices. In response, producers often...
