![Compassion in World Farming US on Twitter: "The majority of eggs are produced using battery cage systems. Hens cannot perch, the litter area is limited, and dust bathing generally is not possible. Compassion in World Farming US on Twitter: "The majority of eggs are produced using battery cage systems. Hens cannot perch, the litter area is limited, and dust bathing generally is not possible.](https://pbs.twimg.com/media/FCPqMUnXEAIiufF.jpg)
Compassion in World Farming US on Twitter: "The majority of eggs are produced using battery cage systems. Hens cannot perch, the litter area is limited, and dust bathing generally is not possible.
![Enriched” Cages – A Gaping Loophole in the “Welfare” Law for Egg-Laying Hens in the European Union - UPC Winter 2012 Poultry Press Enriched” Cages – A Gaping Loophole in the “Welfare” Law for Egg-Laying Hens in the European Union - UPC Winter 2012 Poultry Press](https://www.upc-online.org/pp/spring2012/enriched_battery_building.jpg)
Enriched” Cages – A Gaping Loophole in the “Welfare” Law for Egg-Laying Hens in the European Union - UPC Winter 2012 Poultry Press
![A furnished cage or enriched colony system. The curtain shown in the... | Download Scientific Diagram A furnished cage or enriched colony system. The curtain shown in the... | Download Scientific Diagram](https://www.researchgate.net/publication/49701681/figure/fig2/AS:394222986383367@1471001492675/A-furnished-cage-or-enriched-colony-system-The-curtain-shown-in-the-top-photograph-is.png)