McDonald’s, Taco Bell, Walmart, PepsiCo and numerous other companies have each made cage-free pledges.

Egg proteins added to feed allows hens to pass antibodies to offspring and reduce the use of antibiotics.

Company petitions FDA to establish a standard of identity.

The agency says consistency facilitates food safety innovation.

Compassion in World Farming is tracking large food companies making cage-free egg announcements.

The 58,000-sq.-ft. facility will process 280 million eggs annually.

Gemperle Family Farms plans to finish the conversion a year earlier than originally planned.

Mantiqueira Alimentos received certification for two of its egg brands.