The La Broquerie Research Project brings together the expertise of a wide variety of researchers, including university professors and research associates, graduate students and summer students.

University Professors and Research Associates

Dr. Derek Brewin

Derek Brewin, Department of Agribusiness and Agricultural Economics, University of Manitoba, is a agricultural and regional economist with many years of experience in farm lending and investment analysis. He has been part of several economic feasibility assessments and has used Geographical Information Systems in several economic contexts including regional migration and hog farm expansion. Currently Dr. Brewin is collaborating with the La Broquerie team on the assessment of the local costs and regional economic impacts of forage based systems.

Dr. Martin Entz

Martin Entz is a professor in the Department of Plant Science at the University of Manitoba, where he focuses his research on cropping systems and natural systems agriculture. He devotes much of his research efforts to organic production systems, including the Glenlea Long-Term Rotation Study and the Organic Crops Field Laboratory at Carman, MB. Other research interests include the rotational benefits of traditional and novel legumes, self-regenerating cover crops, and perennial grains.

Dr. Don Flaten

Don Flaten is an associate professor in the Department of Soil Science at the University of Manitoba, where he specializes in nutrient management teaching and research. Don has led or served as a co-investigator on several research projects and reports in the area of phosphorus-based manure management. Don also serves on the Lake Winnipeg Stewardship Board, the Manitoba Rural Adaptation Council and has also served on the Manitoba Phosphorus Expert Committee. Prior to joining the Department of Soil Science on a full-time basis, Don was Director of the School of Agriculture and an Associate Dean for the Faculty of Agricultural and Food Sciences.

Dr. Rick Holley

Rick Holley is currently Professor, Department of Food Science, University of Manitoba. He has published over 140 papers in peer reviewed journals, a book and book chapters. Research interests include microbial ecology of meats, use of natural antimicrobials in food , and zoonotic pathogens in animals and the environment. He is a former head of the Department of Food Science and chair of the Canada Committee on Food. He is presently chair of the International Standards Organization Technical Committee 34 for Food and Agriculture in Canada and is a member of NSERC, Killam Research Foundation and CRC committees in Canada. He is a Fellow of the Canadian Institute of Food Science and Technology and recently received awards for research accomplishments from the CIFST, the University of Manitoba, and the Canadian Meat Council.

Dr. Ermias Kebreab

Ermias Kebreab is an Associate Professor in the Department of Animal Science at the University of Manitoba and holds a Canada Research Chair in Modelling Sustainable Agricultural Systems. Ermias has been involved in mathematical modelling of nutrient dynamics in manure and mitigation of nutrient pollution, and greenhouse gases mitigation from enteric fermentation, manure and soils. His mandate at the University of Manitoba is development of decision support systems for sustainable agricultural production by taking a whole system approach and compliments the efforts of the La Broquerie Research Project.

Dr. Denis Krause

Denis Krause is an Associate Professor in the Department of Animal Science and the Department of Medical Microbiology at the University of Manitoba. His main interests are in gut microbiology and in particular the relationships between agricultural activities, the environment, and human infectious diseases. He employs sophisticated molecular biology techniques in his research. Since coming to the University of Manitoba in 2004 from CSIRO Australia, Denis has developed a world-class microbiology laboratory with state of the art facilities for molecular microbiology.

Dr. Suren Kulshreshtha

Suren Kulshreshtha is currently a professor of agricultural economics at the University of Saskatchewan, Saskatoon, a position he has held for the past 37 years. He teaches quantitative methods, and project evaluation, where incorporating environmental considerations in project planning and evaluation is a major focus. He has also participated in several overseas projects through the Canadian International Development Agency, and through the United Nations Environmental Program. Suren's role in the La Broquerie project is to undertake economic analysis of the project. In particular, farm level economics of the proposed technology along with regional level economic impacts are being planned.

Dr. Kim Ominski

Kim Ominski is an Associate Professor in the Department of Animal Science at the University of Manitoba. Kim has had the pleasure of cooperating with scientists across the Faculty to conduct projects examining the sustainability of beef cattle production systems. She welcomes the opportunity to share these research findings with the agricultural community. Kim also enjoys teaching degree and diploma students courses in ruminant production and grassland agriculture.

Dr. Mario Tenuta

Mario Tenuta is a Soil Ecologist and Canada Research Chair in Applied Soil Ecology. He joined the Department of Soil Science, University of Manitoba, in September, 2002. Mario is an advocate for the promotion of nurturing soil organisms to improve the efficiency and benefit to the environment of our agroecosystems. Dr. Tenuta has a variety of interests but all share the common base of understanding the role of soil organisms in soil processes important to plant performance and applying that knowledge to improving environmental quality. His research interests include reducing greenhouse gases in agriculture, improving nitrogen and phosphorus use efficiency, and finding bioindicators of soil practices that improve soil health. Mario works with an array of soil organisms, particularly nitrifying and denitrifying bacteria important to greenhouse gas emissions, mycorrhizal fungi important to phosphorus use by crops and soil nematodes which are important plant pests and very useful bioindicators.

Matthew Wiens

Matthew Wiens currently works with Manitoba Agriculture, Food and Rural Initiatives, where he uses greenhouse gas quantification methods (protocols) to estimate the impact of farming practices, and changes in farming practices, on Manitoba’s agricultural greenhouse gas emissions. He is also working with a group of people to establish a community farm near Beausejour, MB. He is a beekeeper and gardener with an interest in sustainability and equitable use of resources. In the past, he has also worked in the Department of Plant Science at the University of Manitoba as a sessional instructor and researcher.

Colleen Wilson

Colleen Wilson currently works as Agri-Environment Specialist with MAFRI, where she provides leadership in emerging provincial resource management issues in the area of air, soil, water and biodiversity, and increases awareness and application of the principles of sustainable resource management in agricultural decision making. She has had the opportunity to complete her graduate work at the La Broquerie site, examining the forage and animal response to applied plant nutrients in the form of liquid hog manure, and has also worked as a research associate in this area.

Dr. Karin Wittenberg

Karin Wittenberg has a doctorate in Ruminant Nutrition from the University of Manitoba (1985), where she is now Associate Dean, Research in the Faculty of Agricultural and Food Sciences. An initiative led by Dr. Wittenberg has resulted in the recent announcement that a $ 9.5 million Centre will be established at the University of Manitoba to study the long-term impact of conventional and alternative livestock and land management practices on environmental, economic and human health. Dr. Wittenberg maintains a research program in the area of grassland management and environment, and has developed the research tools for some of the first greenhouse gas work generating information relevant to Canadian production systems.

Current Graduate Students

Ainsley Little

Changes in the microbial community structure of groundwater and soil have been measured over a five year period using high throughput DNA sequencing techniques. Statistical analysis is being done to determine the impact of groundwater and soil nutrients along with botanical composition of pastures on the microbial diversity of groundwater and soil. Pathogens have also been monitored to determine whether they are becoming more prevalent in soil and groundwater with repeated manure applications.

Luca Coppi

Potential for Nutrient Leaching from Liquid Hog Manure Applied to a Coarse Soil Pasture

The objectives of this study are to:

  • Monitor over time accumulation and movement of phosphorus and nitrogen in the soil.
  • Determine whether and to what extent leaching of nutrients to the groundwater table occurs.
  • Calibrate leaching models to be used as simulation tools.

Completed Graduate Students

Ashley Stewart, M.Sc., 2008

Using a Systems Approach to Examine Net Greenhouse Gas Emissions from Beef Production in Western Canada (abstract)

Denis Tremorin, M.Sc., 2009

Greenhouse Gas Emissions from Grassland Pasture Fertilized with Liquid Hog Manure (abstract)

Joel Walkty, M.Sc., 2007

Potential for pathogen transfer from hog manure fertilizer to grazed cattle and groundwater (abstract)

Colleen Wilson, M.Sc., 2007

Productivity and Environmental Sustainability of Grasslands Receiving Liquid Hog Manure (abstract)

Undergraduate Projects

Siobhan Stewart, B.Sc. Agroecology Project. 2007.

Nutrients Accumulate Around Water and Mineral Sources in Cattle-grazed Pastures (abstract)


Copyright and Liability

This page posted August 2007.
Last updated December 2009.