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Industry Partners
Prairie Swine Centre is an affiliate of the University of Saskatchewan
Prairie Swine Centre is grateful for the assistance of the George Morris Centre in developing the economics portion of Pork Insight.
Financial support for the Enterprise Model Project and Pork Insight has been provided by:
New report released on swine manure management
Posted in: Production by admin on January 1, 2005 | No Comments
The Economic Research Service (ERS) of the U.S. Department of Agriculture (USDA)
recently released an in depth examination of how manure management practices have evolved
in the U.S. hog industry from 1998 through to 2004. The report is summarized in the .pdf file attached below. Visit www.ers.usda.gov/publications/eib50 to access a copy of the full report.
Potential for Onsite and Online Analysis of Pig Manure using Visible and Near Infrared Reflectance Spectroscopy
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In this research, the feasibility of a mobile spectroscopy instrument (Zeiss Corona 45 visnir fibre remote) in the visible (VIS) and near infrared (NIR) wavebands for onsite and online analysis of pig manure was investigated. The sensor was calibrated using the one-out cross-validation technique on a set of pig manure samples collected in the spring of 2004 and validated for its ‘true’ prediction accuracy on a set of samples collected in the spring of 2003 from different Flemish farms. Based on the values of coefficient of determination r2 and the ratio of standard deviation of validation set to root mean square error of crossvalidation, the prediction results were evaluated as excellent for dry matter content, good for organic matter content and total nitrogen and approximate for ammonium nitrogen, phosphorus and magnesium. The calibrations for potassium and calcium were only able to discriminate between high and low values. These are encouraging results to recommend the VIS–NIR spectroscopy instrument for onsite measurement of manure composition. This sensor could promote a better manure management based on onsite or even online analysis during haul-out or soil application stages.
Predicting ammonia losses following the application of livestock manure to land
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Integrated Waste Management Approaches (Integrated Waste Management Solutions)
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Higher energy prices have motivated some hog producers to switch to coal to heat their barns over winter. An alternative solution to this is hog manure. Three integrated waste management initiatives help to address public concern on odour, water contamination, and animal and people welfare. Bio-Terre Systems in Canada is taking the approach of low temperature anaerobic digestion of manure. This system uses special bacteria that require no oxygen to function. The digestion of manure will result in the emission of methane and biogas, which can be used to generate energy. Home Farm Technologies Inc. processes manure through their Enviro Reactor which mechanically and chemically separate solids from liquids. The solids can be either composted or used as fuel in the Energy Reactor or Gasifier to produce steam that runs a turbine generator producing thermal and/or electrical energy. Clear-Green Environmental Inc. has a project in Cudworth, Saskatchewan that produces biogas through anaerobic digestion of hog manure. This biogas is used to fuel a co-generation unit built and operated by SaskPower, producing electrical energy that is delivered into SaskPower’s electrical grid. The digester uses a portion of the thermal energy and a portion is sold to the hog facility. Their focus is to form partnerships with waste producers to build operating plants where the company brings the technology, capital and operations. The waste producer provides the site, contract, and can invest as a partner. Anaerobic digesters are well known and widely used. Advanced technology end-use applications can increase the economic value of biogas.
EFFECTS OF ENVIRONMENTAL FACTORS ON ODOR EMISSION FROM PIG MANURE
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Estimating gas emissions from a farm with an inverse-dispersion technique
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Nitrogen Concentration at Maturity—An Indicator of Nitrogen Status in Forage Maize
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