Development of a hydrophilic interaction chromatography-mass spectrometry assay for spectinomycin and lincomycin in liquid hog manure supernatant and run-off from cropland
January 1, 2006
A specific and sensitive analytical method was developed to extract and quantify spectinomycin and lincomycin in liquid hog manure supernatant and simulated rainfall run-off from manure-treated...
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...
Winter Cover Crop and Management Effects on Summer and Annual Nutrient Yields
January 1, 2006By D.E. Rowe|T.E. Fairbrother
Effluent from a swine (Sus scrofa domesticus) lagoon is often applied repeatedly to nearby fields because of logistical constraints and costs of transportation. To minimize accumulation of soil...
Small livestock producers with diffuse water pollutants: adopting a disincentive for unacceptable manure application practices
January 1, 2006By Centner
The problem of water pollution from small livestock producers (non-concentrated animal feeding operations) could be addressed through water quality regulations that apply to additional livestock...
Disinfection of swine wastewater using chlorine, ultraviolet light and ozone
January 1, 2006By Macauley
Veterinary antibiotics are widely used at concentrated animal feeding operations (CAFOs)
to prevent disease and promote growth of livestock. However, the majority of antibiotics
are excreted from...
Antimicrobial Use and Resistance in Swine Waste Treatment Systems
January 1, 2006By Julie L. Zilles
Chlortetracycline and the macrolide tylosin were identified as commonly used antimicrobials for growth promotion and prophylaxis in swine production. Resistance to these antimicrobials was measured...
Cover crop effects on the fate of N following soil application of swine manure
January 1, 2006By T.B. Parkin
Cereal grain cover crops increase surface cover, anchor corn (Zea mays L.) and soybean [Glycine max (L.) Merr.] residues, increase infiltration, reduce both rill and interrill erosion, scavenge...
Source-Related Transport of Phosphorus in Surface Runoff
January 1, 2006By F. Shigaki
Continual application of mineral fertilizer and manures to meet crop production goals has resulted in the buildup of soil P concentrations in many areas. A rainfall simulation study was conducted to...
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...
Environment - Manure Storage / Application
Disposal of Swine Lagoon Sludge with Nutrient Recovery
December 21, 2005By M. Todd See
Gasification offers many advantages for processing undesirable waste materials. Tests on gasifier emissions reveal very low levels of NOx, SOx and volatile organic carbons in the flue gas, well...
