Laying hens have strong motivations for specific behaviors including dust bathing and nesting that are frustrated in conventional systems, causing significant welfare compromise for billions of birds.
Laying hen welfare involves one of the starkest examples of motivated behavior frustration in farm animal agriculture. Hens with strong hormonal drives to dust bathe and find a private nesting spot cannot fulfill these behaviors in battery cage systems — they perform the behaviors in the air, attempting to dust bathe on wire flooring and lay eggs where they stand. This is not adaptation — it is frustrated motivation that constitutes genuine welfare compromise. Cage-free and free-range systems allow more behavioral expression but introduce new welfare challenges. The welfare-positive trajectory is toward systems that provide both behavioral freedom and good physical health.