1. Department of Veterinary Microbiology, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
2. Lethbridge Research and Development Centre, Agriculture and Agri-Food Canada, Lethbridge, Alberta, Canada
3. Department of Chemistry and Biochemistry, University of Lethbridge, Lethbridge, Alberta, Canada
4. Department of Chemistry, University of Saskatchewan, Saskatoon, Saskatchewan, Canada