Hannah had that same problem, very very bad gass. It was so bad sometimes she even had to leave the room ..lol..

But I went to the vets and we changed foods, and we take all the food she eats in the day, her breakfast and supper and give it to her in 4 meals instead of two. Shes eating the same amount only divided into 4 meals. Don't now what that does but believe me it works. AND NO PORK !!! the vet was very strong about that. Pork and hounds don't mix so it might be the same for other breeds ??