Multiple environmental externalities and manure management policy
January 1, 2007
This paper considers the economic and environmental implications of regulation the air nitrogen emissions under single and multi-environmental media policies in the US hog industry. We examine...
Development of a Swine-Specific Fecal Pollution Marker Based on Host Differences in Methanogen mcrA Genes
January 1, 2007By Ufnar
The goal of this study was to evaluate methanogen diversity in animal hosts to develop a swine-specific
archaeal molecular marker for fecal source tracking in surface waters. Phylogenetic analysis of...
The fate of crop nutrients during digestion of swine manure in psychrophilic anaerobic sequencing batch reactors
January 1, 2007By D.I. Masse Dairy and Swine Research and Development Centre
The objectives of the study were to measure the levels of manure nutrients retained in psychrophilic anaerobic sequencing batch reactors (PASBRs) digesting swine manure, and to determine the...
Nitrogen mass balance in fields irrigated with liquid swine waste
January 1, 2007
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 these...
Sensitivities of Four Air Dispersion Models to Climatic Parameters for Swine Odor Dispersion
January 1, 2007
Using air dispersion models to predict downwind livestock odor concentrations in order to establish science-based setback distances has the potential to become a common practice for regulatory...
Use of swine manure to improve solid-state fermentation in an integrated storage and conversion system for corn stover
January 1, 2007By Patrick T. Murphy
Swine manure contains a host of chemical and biological constituents which make it desirable for amending lignocellulosic biomass in storage for year round processing in a biorefinery. Application of...
Automated Image Analysis for Quantitative Fluorescence In Situ Hybridization with Environmental Samples
January 1, 2007
When fluorescence in situ hybridization (FISH) analyses are performed with complex environmental samples, difficulties related to the presence of microbial cell aggregates and nonuniform background...
Use of 13C abundance to study short-term pig slurry decomposition in the field
January 1, 2007
Applying pig slurry (PS) on agricultural soils is a common practice. However, its impact on soil organic C dynamics is not clear. This experiment investigated the use of natural 13C abundance to...
Crop residue effects on runoff nutrient concentrations following manure application
January 1, 2007By John E. Gilley
Manure is applied to cropland areas managed under diverse conditions, resulting in varying amounts of residue cover. The objective of this study was to measure the effects of crop residue on nutrient...
Compositional and functional features of humic acids from organic amendments and amended soils in Minnesota, USA
January 1, 2007
The use of organic amendments requires an adequate control of the chemical quality of their humic acid (HA)-like fractions and of the effects that these materials may have on the status, quality,...
