Farmed Hen Cage-Free Transition: Progress and Challenges

The global shift from battery cages to cage-free systems represents significant welfare progress for laying hens, but transition challenges and system design remain critical welfare factors.

Key Facts

Over 500 corporate pledges have been made globally to source only cage-free eggs by set target dates
Battery cages provide only 67 sq cm per hen — less than a sheet of A4 paper
Cage-free systems provide more space but introduce new welfare risks including feather pecking and disease
Aviary systems with multiple levels allow full expression of natural behaviors including perching and nesting
Mortality rates in cage-free systems can initially exceed battery cage mortality during disease outbreaks
Enriched colony cages — still cages but larger — are a disputed middle-ground welfare option

Welfare Considerations

The cage-free transition represents the most significant shift in farmed animal welfare in decades, affecting billions of hens globally. However, progress must be matched with attention to cage-free system quality. Poorly designed cage-free barns with inadequate ventilation, enrichment, and management can produce welfare outcomes worse than well-managed colony cages. The goal is not merely cage removal but genuine welfare improvement through systems that allow hens to perch, dustbathe, forage, and lay in private nests. Consumer and retailer pressure must specify system quality alongside cage-free status to drive genuine welfare improvement.

What You Can Do

Choose eggs certified to high-welfare cage-free standards specifying space, perches, and nesting boxes
Support corporate cage-free pledges while also advocating for quality benchmarks in those pledges
Advocate for regulatory standards that define minimum quality requirements within cage-free systems
Reduce egg consumption to lower demand during the transition period when supply is constrained
Support research into optimal cage-free system design to minimize the new welfare risks that emerge