Picture of  Paisley Johnson

Paisley Johnson Graduate Student, Department of Large Animal Clinical Sciences


  • MSc Candidate
  • Supervisor: Dr. Cheryl Waldner, Department of Large Animal Clinical Sciences
  • Home Community: Saskatoon, Saskatchewan

Academic Credentials

  • BSc Animal Bioscience, University of Saskatchewan

Summary Bio

Paisley is from Regina, Sask. She attended the University of Saskatchewan from 2015 to 2019 and obtained her Bachelor of Science in Animal Bioscience degree. After graduating, she worked with the Saskatchewan Ministry of Agriculture as the animal health and welfare specialist for a year. In that position, she developed further interest in the areas of animal health and disease surveillance and management. 

She is investigating Johne's disease in her master's program, which ties together with her main areas of interest including epidemiology, animal welfare, food security and one health. 

Research Area(s)

Johne’s disease is caused by the bacterium Mycobacterium Avium Paratuberculosis (MAP). MAP causes enteritis in ruminants and leads to severe diarrhea and eventual death. This disease is characterized by a long incubation period during which the infected animal actively sheds the pathogen in their feces. An infected but visibly healthy animal can spread the disease to several other animals in a herd, making the disease difficult to control and eradicate. The objective of this research is to implement a decision making tool that will help determine the most efficient and cost-effective method of controlling Johne’s Disease in cow calf herds.