Sow mortality in Ontario: A comprehensive study to assess trends and identify risk factors

Lead Applicant: Terri O'Sullivan

Research Priority: Animal Health & Welfare

Program Type: Tier 1

Funding Cycle: 2024/2025

Research Centre: NA

Research Summary: The Canadian pig industry has undergone major changes with swine production transitioning from individual gestation crates to group housing and with sow productivity being maximized. While managing and understanding sow mortality has always been a concern in commercial swine farms, the issue is gaining importance as reported mortality numbers have been increasing.  Benchmark statistics suggest that culling and replacement rates have been steadily increasing and apparent sow mortality approaching concerning levels. 

When taken at face value such statistics could be an indicator of serious welfare issues. The highly dynamic nature of production practices, and occasionally the poor definition of sow mortality, complicates establishing the causes of sow mortality and necessitates the need for an epidemiological approach. 

Through the use of advanced epidemiological methods and industry collaborations, this research will investigate trends and risk factors associated with sow mortality on representative Ontario farms.