Hi Tiffany-
Couple things. The diet that you mentioned was not in fact properly balanced. It sounds like you were trying to do a Prey Model Raw diet, but not following the 80/10/10 rule consistantly everyday. If you want to see how to properly feed a Prey Model Raw diet follow “The Raw Feeding Community” and I also like http://mojoandfriends.blog/.
Onto the sickness issue. My guess would be this is directly related to the wild rabbit they were allowed to eat. As Tyrion said above, wild rabbits/animals can carry a wide variety of parasites, hookworms included. Hookworms can and will cause GI issues like what you experienced. DO NOT allow the dogs to catch and eat wild prey again. This is asking for trouble. If you need to, I would even recommend purchasing your raw meals from a service like wefeedraw.com.
