it's not a good idea to mix kibble and barf because your dogs system processes them both at different rates and it can lead to bloat.
if it's vitamins and minerals you want for them they should be in a well balanced barf diet.
Otherwise I'd try adding raw or canned tripe, krill, fish oil or coconut oil a probiotic and digestive enzyme.
Is it okay to ask why you feel the need to combine the raw and kibble |