Farrowing crates severely restrict sow movement and natural behavior for weeks around birth, raising serious welfare concerns despite claimed piglet safety benefits.
Farrowing crates cause severe frustration of natural behaviors in a highly motivated animal. Sows cannot turn around, root, or perform nesting behavior they are strongly driven to complete. Evidence of chronic stress includes elevated cortisol, stereotypies, and apathy. Loose farrowing systems with appropriate design, supervision, and genetics can protect piglets while allowing sow welfare.