Raw diet for Dogs

Hello, I am new to this group. I have two dogs and 2 cats. I have recently started my dogs on a raw diet. Mostly because of ulcers in Dillon's mouth and Kelty has some alergies. We have taken Dillon to 3- vets about the ulcers and they say to keep his teeth clean and that he would probably have them always. Kelty has been on medicine in the past for her itchy feet. So I got on the internet and found some info on feeding your dog raw. Dillon has been eating raw for about a month (venison) and I have started Kelty slowly (she has a sensitive stomach) on raw chicken necks.
My questions is two fold. First off I would like to know how much you should feed (approximately) Dillon - 65 lbs and Kelty - 75 lbs
I have been feeding them approximately 16 oz daily (8oz in am and 8 oz in pm) Also, has any one been successful in treating ulcers in their dogs mouth. I would really appreciate any help I can get Tweet