this is my second question about riley.more detail this time.riley my irish setter had bone cancer in oct 07.his rt.rear leg was removed at this time.he had three rounds of chemo.since that time he has done very well.since my sister's dog has the same thing going on with soft stool with the last of it mucus and dripping .riley wil drink water normal amounts,and will eat . but not anything raw lean meat about two cups. he is very alert,but visably tired where he can,t walk very far without laying down.his stool is a bowl movement not watery diarrhea.more a really soft movement.after eating he looks comfortable and sleeps well. he is burpinng in the morning on an empty stomach.a little yogurt seems to calm this i also gave him a pepcid. then later on he will eat.lying on his back he belly fills hard .his gas smells foul and a burp in my face smelled like worms roting.tomorrow in plan to take a stool sample to a vet to check,as per your first answer sugested.please give your expertopinion
Optional Information:
Age: 7; Male; Breed: irish setter
Already Tried:
metronidazole 500mg last week.yogurt with probiotic mixed in,brat diet only as much as he would eat.