You can't just start with clean meat; you've got to have raw bone with it, otherwise the dogs will build a nitrogen/phosphorous imbalance. That is one of the worst mistakes raw feeders make is only feeding meat. In the original ingredients you posted, there was no mention of bone at all.

To get a good meat/bone combination, feeding chicken is generally the cheapest, the easiest to come by, and the easiest for the dog to assimilate--plus chicken has a good amount of fat on it, which is vital. One of the reasons feeding exclusively rabbit/squirrel isn't good is because they have no fat on them.