My EBT has also had bad gas and poo on kibble. I also switched to raw and the gas is better and the poo doesn't smell anymore. I don't know that I will every get rid of the gas completely because the breed is known for having it, but more specifically, I can't controle what he eats from the yard since some people in the neighborhood like to through stuff in my back yard!!
The only thing I could suggest is, try changing the food, if that doesn't work then it might just be the dog.
