Alternatives to minimize the environmental impact of large swine production units
January 1, 1999
Large swine production facilities have become controversial additions to the agricultural landscape as their numbers and sizes have increased. In addition to being larger enterprises, these units...
Optimization of a sprinkling system using undiluted canola oil for dust control in pig buildings
January 1, 1999
An oil sprinkling system has been designed to control dust levels in pig buildings using undiluted crude canola oil and was previously tested over a two-week period. The system was tested again over...
Estimating the availability of nutrients from processed swine lagoon solids through incubation studies
January 1, 1999By Miressa Duffera
Potential environmental hazards from the excess accumulation of swine (Sus scrofa domesticus) manure in eastern North Carolina and new state guidelines on treatment alternatives have necessitated the...
Phosphorus Fractionation in Manure from Swine Fed Traditional and Low-Phytate Corn Diets
January 1, 1999By Brian Wienhold
Traditional corn (Zea mays L.) (TC), the primary grain used in swine (Sus scrofa) diets, stores a majority of its P as phytate, which is largely unavailable for digestion by nonruminant animals....
Reduction of odour and gas emissions from swine buildings using canola oil sprinkling and alternate diets
January 1, 1999
This three year project evaluates the impact of four different canola oil application rates combined with specific diet formulations on odour and gas emissions from grower-finisher swine buildings....
Impacts of swine manure pits on groundwater quality
January 1, 1999By I. G. Krapac
Manure deep-pits are commonly used to store manure at confined animal feeding operations. However, previous to this study little information had been collected on the impacts of deep-pits on...
Utilization of Nutrients in anaerobically-pretreated swine wastewater for greenhouse tomato production
January 1, 1999
Swine waste treatment in North Carolina typically consists of an anaerobic lagoon and sprayfield upon which crops are grown to utilize the nutrients. Currently, swine lagoon effluent must be applied...
Design and evaluation of an open biofilter for treatment of odour from swine barns during sub-zero ambient temperatures
January 1, 1999
Open biofilters have previously been shown to reduce odour from typical swine production facilities, but it was not known whether the exhaust air contained sufficient heat to prevent the biofilter...
Swine effluent compared to inorganic fertilizers for tomato production
January 1, 1999
Five fertilizer treatments, three of which included swine effluent, were evaluated for plasticulture production of tomato, cv. Mountain Spring, grown on raised beds with black polyethylene mulch and...
Effect of anaerobic digestion on struvite production for nutrient removal from swine waste prior to land application
January 1, 1999By Lara Beal Moody
Swine production facilities are becoming larger in size and are concentrated in smaller geographical areas. Additionally, there is an increasing trend to base manure land application rates on crop...
