What are the benefits of free ranging?

[horsewishr]

Here's another quote from a different article:

New research by Mother Earth News magazine provides more evidence that industrial agriculture is producing inferior food. Tests of eggs from four free-range flocks found that, compared to U.S. Department of Agriculture (USDA) nutrient data for eggs from confinement production systems, the eggs from chickens raised on free range were much more nutritious — up to twice as rich in vitamin E, up to six times richer in beta carotene (a form of vitamin A) and four times richer in essential omega-3 fatty acids. And, the free-range eggs averaged only half as much cholesterol as the USDA data indicates for confinement-system eggs.

article link:
http://www.ewire.com/display.cfm/Wire_ID/2717​