Animal Welfare in Intensive Egg Production

The welfare of laying hens in intensive egg production remains one of the most pressing farm animal welfare issues globally.

Key Facts

Over 8 billion laying hens are kept globally in egg production systems
Conventional battery cages give each hen less than an A4 sheet of space
Enriched colony cages banned in the EU since 2012 still confine birds in better but limited conditions
Cage-free systems can be higher welfare than cages but require good management to deliver benefits
Outdoor access systems consistently show the best welfare outcomes but represent a small fraction of production

Welfare Considerations

The welfare gradient from battery cages to cage-free to pasture systems is real and significant. Cage-free systems that are poorly managed — with inadequate litter quality, high stocking densities, or insufficient perches and nest boxes — can fail to deliver welfare benefits over enriched cages. The key welfare factors are behavioral: can hens scratch, dustbathe, perch, and lay in private nest boxes? Systems that provide these opportunities alongside outdoor access consistently show the best welfare outcomes, measured by fear responses, leg health, and bone strength.

What You Can Do

Buy only cage-free or higher standard eggs from reliable certification programs
Pressure retailers and food service companies to source 100% cage-free eggs
Advocate for banning enriched cage systems and requiring cage-free minimum standards
Support research into cage-free system management that delivers welfare benefits
Reduce egg consumption while campaigning for systemic welfare improvement