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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:
Odour & Greenhouse Gas Emissions from Hog Operations
Posted in: Environment by admin on January 1, 2005 | No Comments
Hog production facilities have increased in size over the years, and along with this increase have come complaints due to odour. Odour associated with hog operations are from three main sources: a) building exhaust, b) manure storage, and c) land application of manure. As more and more producers are adopting manure injection, odour from land application is becoming less of a concern in Manitoba. But our understating of odour emissions from buildings and manure storage is still elusive. In particular, the relative contributions to odour from barns and the manure storage are not well known. This project aimed to quantify these relative odour contributions by comparing odour emissions and dispersion between two similar hog operations with different manure storage systems. A common practice of reducing the impact of livestock odour on the neighbouring communities is to maintain appropriate separation (setback) distance between the facility and the neighbouring communities. The downwind odour impact depends on many factors, including odour emission, weather conditions, topography, and odour sensitivity and tolerance of the neighbors. The methods for estimating setback distances are either empirical (experience plus measurements) or dispersion-based. This project evaluated commonly used setback and dispersion models for Manitoba conditions. It is estimated that agricultural operations contribute approximately 10% of the total anthropogenic greenhouse gas (GHG) emissions in Canada, with about 40% of that originating from livestock production. However, little is known about the relative contributions to GHG emissions from barns and manure storage in different production systems. This project addressed the issue of greenhouse gas emission from hog operations with open and covered manure storage.
ANALYSIS AND DESIGN OF BORDER IRRIGATION SYSTEMS
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DESIGN OF A RECYCLING TUNNEL SPRAYER USING CFD SIMULATIONS
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Characterisation of the organic matter pool in manures
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Study: Enzyme in Diet Helps Hogs Use More P
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At the Prairie Swine Center, studies are being done to discover how much phosphorus contained in rations is simply wasted. Results show that about 70% of the phosphorus contained in feed is simply evacuated without being processed. This usually ends up in fields but luckily Saskatchewan soils tend to be phosphorus deficient so does not pose an environmental risk. It does, however, add additional costs to hog producers. They must add artificially produced phosphorus to their feed, which is expensive. The researchers at the Prairie Swine Center are working on the use of an enzyme, which, when added to the feed, helps animals digest the naturally occurring phosphorus contained in their diets. Results from this research have shown that it is possible to get the same performance in animal nutrition with the enzyme without adding phosphorus. Using this enzyme, producers see a net benefit of around $0.33/pig.
Applying Alternative Technologies To Cafos: A Case Study
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