It's well known that most conventionally produced "industrial" beef in the U.S. is produced in large feed lots, where cattle are fed a diet that can include grass and hay but is primarily made up ...

A picture taken on June 21 ... The problem lies in that much of the fiber that cows eat comes from grasses, hay, and low-cost food byproducts. Switching to grains can reduce methane build-up ...

He said about half of his 120 cows are still grazing on corn stocks and about half are eating hay. For now, Swenka said he’s hoping to keep stretching what he does have — and hopes for plenty ...