Environment - Other
Utilization of crystalline amino acids by the gut in growing
October 12, 2006By Nathalie L. Trottier
Conventional diets containing corn and soybean meal fed to growing pigs can be reduced in protein by replacing a portion of the protein with crystalline amino acids. Crystalline amino acids are of...
Environment - Manure Storage / Application
Evaluation of the effects of diet formulation method and inclusion of DDGS and phytase on manure phosphorus excretion of grow-finish pigs and on the concentration and forms of P in manure amended soil
July 20, 2006By G.C. Shurson
• Formulating diets with phytase reduces the concentration of total P in the manure compared to a conventional diet by as much as 30%. • Using DDGS in the diet results in no significant...
Environment - Air
Quantification of gas and odor emissions from swine wean-finish facilities
May 15, 2006By Alan Sutton
The most significant change seen in the swine industry has occurred over the last sixty years. We have seen a shift from many farms producing a limited number of pigs to a small number of large...
Environment - Air
Development of a user-friendly database and decision tree for selecting air quality BMPs
May 15, 2006By Ken Stalder
Environment - Air
Quantification of gas and odor emissions from swine wean-finish facilities
May 1, 2006By Alan Sutton
A total of 960 pigs (equal barrows and gilts) were used in a 2 x 2 factorial, wean to finish
experiment to determine the effects of diet (control, CTL vs. low nutrient excretion, LNE)
and manure pit...
Environment - Air
Evaluation of Boric Acid and Sodium Tetraborate to Reduce Ammonia and Hydrogen Sulfide Emissions from Swine Facilities
March 27, 2006By Melvin Yokoyama
The experimental results of the first year of this study clearly demonstrates that boron, in the form of boric acid and sodium tetraborate (borax) is very effective in inhibiting the emissions of...
Environment - Water Usage / Conservation
Pathogenic and Indicator Bacteria in Agricultural Watersheds
March 8, 2006By Thomas Moorman
Escherichia coli and Enterococcus are indicator bacteria that were measured in Iowa streams that drain land with different levels of swine production. We completed a study monitoring=g these bacteria...
Environment - Air
Air Emissions Monitoring Protocol
January 23, 2006By Steven Hoff PhD
H2S concentrations measured at the perimeter of nine swine operations across the state indicated that for the sizes of operations investigated with this study, the dominating influence on perimeter...
Environment - Manure Storage / Application
Free fatty acids and sterols in swine manure
January 1, 2006By Loughrin
Free fatty acids and sterols were assessed in fresh manure and anaerobic lagoon sludge from swine production facilities in North Carolina. Eight free fatty acids and five sterols were identified and...
Environment - Manure Storage / Application
Disposal of Swine Lagoon Sludge with Nutrient Recovery
December 21, 2005By Dr. M. Todd See
Sludge accumulation in lagoons reduces their treatment efficiency over time
and, ultimately, may cause the decommissioning of the lagoon. Gasification is an ideal
technology for sludge disposal since...
