Thanks Susan for your advice. And the Pro Plan chicken and rice is the same ingredients as the lamb so maybe he just has to get use to the chicken. This is a weird one. His stools are okay. Should I keep going or not? Right now I am only giving him small amounts. The whole week I did 90% old and 10% new. Then I did 75% old and 25% new that’s when I seen a lot of gas. Now I know some gas happens, but he was pacing around and then let out a loud burp. So now what I did was back it up again to 90% and 10%. I don’t like the bigger kibble that is in the chicken one. The lamb one is a smaller kibble and I do agree it is better for digestion. The store said to me with some dogs when you change the protein this can happen. I noticed if I change the carbs around it doesn’t happen.
