
I feed raw had have done for many years.
Your puppy has obviously been weaned onto a good food.
I would not have thought that the rabbit was too rich but possibly the offal could be. My lot do not like too much raw liver, they sick it up if they steal too much when my back is turned.
However bones and offal are essential in an all raw diet to keep it fully ballanced. I am sure you are quiet aware of this though!
You say that the butchers carcass are fine and stay down ok, maybe you should continue to use this type of bone for her.
Could you feed smaller amounts of the offal and mix it with another soft mince that stays down ok without upsetting things. Also try very slightly cooking the offal, just enough to change the consistancy and taste a little.
It may all depend on which animal offal she does not like (cow, pig or lamb) but offal by itself is very rich!
So many reasons and thoughts and suggestions.!!!