Eugenol stimulates lactate accumulation yet inhibits volatile fatty acid production and eliminates coliform bacteria in cattle and swine waste
January 1, 2004
Aim: To determine how eugenol affects fermentation parameters and faecal coliforms in cattle and swine waste slurries stored anaerobically. Methods and Results: Waste slurries (faeces : urine :...
Reducing phosphorus runoff from swine manure with dietary phytase and aluminum chloride
January 1, 2004
Phosphorus (P) runoff from fields fertilized with swine (Sus scrofa) manure has been implicated in eutrophication. Dietary modification and manure amendments have been identified as best management...
Rate of fall-applied liquid swine manure: Effects on runoff transport of sediment and phosphorus
January 1, 2004By N.C. Hansen
Reducing the delivery of phosphorus (P) from land-applied manure to surface water is a priority in many watersheds. Manure application rate can be controlled to manage the risk of water quality...
Enzymatic hydrolysis of organic phosphorus in swine manure and soil
January 1, 2004By Zhongqi He
Organic phosphorus (Po) exists in many chemical forms that differ in their susceptibility to hydrolysis and, therefore, bioavailability to plants and microorganisms. Identification and quantification...
Ammonia emissions from swine houses in the Southeastern United States
January 1, 2004
Ammonia (NH3) from confined animal feeding operations is emitted from several sources including lagoons, field applications, and houses. This paper presents studies that were conducted to evaluate...
Enzyme-linked immunosorbent assay for ultratrace determination of antibiotics in aqueous samples
January 1, 2004By K. Kumar
Two commercially available enzyme-linked immunosorbent assay (ELISA) kits that are commonly used for tylosin or tetracycline residues in meat and milk were adapted for ultratrace analysis of these...
Dust and odor emissions from tunnel ventilated swine buildings in North Carolina and comparison of different odor evaluation methods
January 1, 2004
Tunnel ventilation of swine buildings conveys odourous dust and gases out of the production buildings. Measurement of dust and odour levels and other environmental parameters is necessary for...
Seepage evaluation of older swine lagoons in North Carolina
January 1, 2004By Ronald L. Huffman
Thirty-four swine waste lagoon systems in North Carolina were examined for evidence of seepage losses to the shallow groundwater. All were constructed prior to the state's January 1993 adoption of...
Excretion of major odor-causing and acidifying compounds in response to dietary supplementation of chicory inulin in growing pigs
January 1, 2004
The excretion of major odor-causing and acidifying compounds in response to dietary supplementation of chicory inulin extract was investigated with six Yorkshire barrows, with an average initial BW...
Total and water-soluble phosphorus excretion from swine fed low-phytate soybeans
January 1, 2004
A study was conducted to evaluate the impact of feeding soybean meal (SBM) from low-phytate (LP) or traditional phytate (TP) soybeans on performance and excretions from growing swine. Ninety-six...
