The effect of low light flux and nitrogen defficiency on the chemical composition of Spirulina sp. (Arthrospira) grown on digested pig waste

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Effect of Land Use on Methane Flux from Soil

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Pig effluent-P application can increase the risk of P transport: two case studies

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Technologies for Odour Management

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Intensive pork production can result in odour problems to the neighboring population. Consequently odours can become an environmental constraintg to expanding the pig industry, especially in areas that are good for growing feed, water is available and transportation costs are reasonable. Thus, every effort must be made by the producer to reduce the frequency, intensity, duration, and the offensiveness of the odours (FIDO). Producers must design, construct, locate and manage the manure collection and storage facilities to minimize the FIDO.

It is unrealistic to expect a commercial hog operation to operate without some odour. However, the odour level of a hog operation can be significantly reduced when manure management systems are properly designed and operated. The exposure of barn workers and the neighboring population to odours must be acceptable.

Controlling Runoff from Feedlots and Cow-Calf Wintering Areas

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Introduction
Manitoba is very fortunate to have an ample supply of good-quality surface water. Many communities rely upon surface water for their drinking water supply, as well as for ecreational purposes such as swimming and boating. Agricultural uses include watering livestock, irrigating crops and processing food. And, equally important, water is sed by wildlife and is home to many aquatic organisms. However, often these same users cause surface water quality problems. Several agricultural practices can harm ater quality. Allowing contaminated runoff to flow into surface watercourses is one of them. What is a a

High Tech Tools to Assist in Land Use planning for Livestock Production

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A standard methodology for the evaluation of soil suitability in the prairie landscape for the application of swine manure was developed through the collaborative efforts of Research Branch and PFRA. The procedure involves the integration of soil, landscape and geological information to define environmental sensitivities and thus highlight management requirements to sustain soil and water quality. Resource information for both soils and geology has been standardized and integrated to define a series of nine soil management groups (SMGs). Example maps depicting the various components and the resultant soil management groups have been developed for three
test areas encompassing rural municipalities or portions of counties in Alberta, Saskatchewan and Manitoba. The main function of this methodology is firstly, to provide a standard description of the land resource base in terms of environmental limitations, and secondly, to serve as a decision support mechanism to link users directly to management information such as provincial farm practice guidelines through a menu-driven interactive process. The methodology will be used by resource specialists and land use planners at the provincial and local municipal level and will be applied at a broad level in the planning process. This decision support system is intended to
assist resource specialists and planners in making environmentally sound decisions for the purpose of siting swine production units and in making recommendations for application of swine manure to the land base in an environmentally sustainable manner. The Research Branch in collaboration with PFRA, NRCan, and provincial resource specialists, developed this evaluation methodology using expertise in pedology, geology, hydrology, meteorology, soil chemistry, land use and manure management.

Comparing Phosphorus Management Strategies at a Watershed Scale

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EFFECTS OF FEEDSTOCK pH, INITIAL CO ADDITION, AND TOTAL SOLIDS CONTENT ON THE THERMOCHEMICAL CONVERSION PROCESS OF SWINE MANURE

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Government Agency in Japan Builds Case to Mix Meat, Bone Meal in Cement

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Analysis of Minor elements and Metals in Hog Manure by Field-portable near-infrared Spectrscopy: Results for Zeiss Corona (R) Spectrometer

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The overall purpose of this project was to develop a field protocol for testing two field-portable
near-infrared (NIR) spectrophotometers as on-site, free-standing (not in-line), measurement
tools for nutrients in hog manure at the time of application of manure to agricultural land. This
project is a developmental step between the analysis of hog manure in the laboratory using
near-infrared spectroscopy (NIRS) and the deployment of NIR instruments in the manure
stream for real-time measurement of composition of manure during application to land. The
field-portable instruments included the Textron Systems Corp (USA)/Case NH (USA)
ProSpectraa