Impact of grazing management on pathogen presence in livestock and the environment

Dr. Murphy will present results from a 3-year rotational grazing of beef cattle project where her team intensively studied 5 rotational farms and 4 conventional farms over 3 grazing seasons in southern Ontario. She will present findings on pathogen presence in soil, water and cattle fecal samples and management factors that seemed to influence presence of pathogens in cattle environments.

Dr. Murphy has over twenty years of experience in water-related research in both North America and abroad. Dr. Murphy obtained her PhD in Environmental Engineering from the University of Guelph, Canada. Following her PhD, she worked for the United Nations International Emergency Children’s Fund (UNICEF) as a Water, Sanitation and Hygiene Specialist in Mali and Madagascar. In 2015 she joined Temple University’s College of Public Health where she was an Assistant Professor for 5 years. In 2020, she joined the Department of Pathobiology, in the Ontario Veterinary College (OVC) as Tier II Canada Research Chair and Associate Professor working in the area of One Health. She was recently inducted into the Royal Society of Canada in their College of New Scholars and was named one of Canada’s Top 100 Most Powerful Women in 2025 for her research and mentorship of female scientists. Dr. Murphy’s work seeks to identify and understand the ways pathogens move through water and the environment, and propose appropriate interventions needed to protect human and animal health.

Recordings of the webinars will be made available on ourYouTube channel a few weeks after each date. An email will be sent to everyone who registered when they are available.