Bird flu drives free-range hens indoors for safety

DES MOINES, Iowa (AP) — Is it OK for free-range chickens to not range freely?

That's a question free-range egg producers have been pondering lately as they try to be

open about their product while also protecting chickens from a highly infectious bird flu that has resulted in the death of roughly 28 million poultry birds across the country.

The U.S. Department of Agriculture recommends that chickens be moved indoors to protect against the disease, but while some are keeping their hens inside, not everyone agrees.

John Brunnquell, the CEO of Indiana-based Egg Innovations, which contracts with more than

50 farms in five states to produce free-range and pastureraised eggs, said any of his chickens in states with bird flu cases will stay in "confinement mode" until the risk passes.

"We will keep them confined at least until early June," Brunnquell said. "If we go four weeks with no more commercial breakouts then we'll look to get the girls back out."

Bird flu cases have been identified in commercial chicken

and turkey farms or in backyard flocks in 29 states, according to the USDA. Spread of the disease is largely blamed on the droppings of infected migrating wild birds.

The farms Brunnquell contracts with are in Illinois, Indiana, Kentucky, Ohio and Wisconsin, all of which have had at least once case of bird flu.

But some, like Mike Badger, the executive director of the American Pastured Poultry Producers Association, are taking a different approach.

Badger, whose Pennsylvaniabased nonprofit group has about 1,000 members across the country, believes birds kept

outdoors are at less risk of infection than chickens and turkeys raised amid thousands of others in large, enclosed barns.

"We put them outside and they get in touch with the environment so I think they have a

better immune system to be able to fight off threats as they happen," Badger said.

Research has not clearly proven significant immune system differences in chickens housed

outdoors versus indoors. And Badger speculates that lower density of animals, air movement and less sharing of equipment and staff in pasture-raised operations may contribute to a lack of virus infections.