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...
Efficacy of a liquid/solid isolation system for swine manure
January 1, 2005By R. D. von Bernuth
Researchers at Michigan State University (MSU), Institut de Recherche et de Developpement en Agroenvironnement (IRDA) in Quebec, Canada, and Centre de Developpement du Porc du Quebec (CDPQ) in...
Tylosin sorption to silty clay loam soils, swine manure, and sand
January 1, 2005
The objectives of this study were to assess sorption and desorption of tylosin, a macrolide antimicrobial chemical used in swine, cattle, and poultry production, in three silty clay loam soils of...
Movement of lagoon-liquor constituents below four animal-waste lagoons
January 1, 2005By Gary M. Pierzynski
Movement of liquor constituents from animal-waste lagoons has the potential to degrade ground water quality. The depth of movement and concentrations of lagoon-liquor constituents in the soil...
Environmental assessment tools for the evaluation and improvement of European livestock production systems
January 1, 2005
Different types of assessment tools have been developed in Europe with the purpose of determining the environmental impact of various livestock production systems at farm level. The assessment tools...
