I've fed Prairie formula (bison) to all of my dogs for quite a while now- it's definitely an excellent food. If you go to the Yorkie Health & Diet section of the forum and click on the sticky "Super Premium Pet Foods List... ask for free samples" (last page) you'll see my post that explains how to get samples of all 3 varieties (Prairie, Wetlands & Pacific Salmon). I received mine way back when, but they sent me four 6oz packages of
each diet
