If you are going to use just rabbit you will need to get fat from someplace rabbit is very lean.[/quote
I have read this several places and, at least with my rabbits [I raise standard Rex], this is not my experience. My rabbits have plenty of fat, both internally around their organs and in the little pads on their backs, and I feed 2 large LGDs who are about 100 lbs each. The dogs get other meat occasionally but most days they each get a half of a rabbit, somewhere between 3-5 lbs for each dog. They get everything, skin, bones, organs, etc. Sometimes they leave the stomach and/or the pelt. I guess it depends upon how hungry they are
The older one has been eating this way for 4 years and the younger one for his whole life. The vet says that they are both very health and so I have stopped worrying about the prognostications that dogs will "die" from only eating rabbit.