Page 184 – Pork Checkoff

Pork Checkoff Research

Research is at the heart of the National Pork Board’s mission and is funded by your Pork Checkoff dollars. Research is administered in all areas of pork production, processing, and human nutrition to develop a higher quality and more profitable product in the competitive meat protein market.

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Phosphorus removal from swine manure supernatant: precipitant efficiency
This study proposes an emergency remedial measure aimed at reducing the eutrophic load of the supernatant of pig manure when discharge in the aquatic environment is unavoidable. Phosphate removal...
Anaerobic filter loading for liquid swine waste [Odor reduction, on the farm waste management system]
Anaerobic filters were tested to quantify design and process variables necessary to design an anaerobic filter for treating liquid swine waste. The anaerobic filter operates at 9 hours hydraulic...
Fertilizer value and nitrogen losses of swine and dairy manure from an above-ground storage system
None available.
Nitrogen losses from swine housings
A nitrogen budget procedure was used to estimate the loss of manure N from three swine barns with liquid manure systems. The loss of N was determined as the difference between animal plus feed N...
Use of nitrification inhibitors and ammonia enrichment with swine manure applications
None available.
Environment - Manure Storage / Application
Pollution control of swine manure and straw by conversion to Chaetomium cellulolyticum SCP single-cell protein feed
Swine manure has a very high pollution potential and obnoxious odor. Large farms particularly are confronted with a manure disposal problem since environmentally acceptable solutions are now required...
Changes in Gas Release Rates and Component Concentrations During Storage of Swine Manure
None available.
Odor and water related nuisances from swine facilities in Ohio
Descriptions of 5 pig farms giving rise to complaints of odours and water pollution are given. Legal action and the fines levied are discussed. Methods of solving nuisance problems are noted, and design and management criteria for avoiding them are suggested.
Ammonia losses during sprinkler application of animal wastes
A model for predicting ammonia losses during sprinkler application of animal wastes was developed. These losses are important because of the cost of nitrogen as a fertilizer and because it is a...
Odor reduction of swine manure by aeration stripping
A dynamic dilution-to-threshold odour measurement method was used to evaluate changes in odour level downwind from an on-farm anaerobic liquid swine manure tank during short-term aeration. Air...
Odor control in liquid swine and dairy manure with commercial products
In 5 experiments, single or regular addition of liquid polyphosphates (N 10%, P2O5 34%) at up to 4 ml/l to liquid dairy cattle or pig manure (TS 5-7%) did not reduce odour, COD or pH. Single or...
Soil carbon, nitrogen and phosphorus contents in maize plots after 14 years of pig slurry applications
Excessive applications of liquid pig manure (LPM) could result in nutrient accumulation in the soil, thereby increasing the potential for plant nutrient losses through movement in groundwater. The...
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