My 9 year old mini schnauzer has had 2 surgerys to remove bladder stones. Is this common with this breed? I've been told that it is. Would like to know the best possible way to prevent this from happening to her again. Any info would be greatly appreciated.

Take her off dry food and put her onto meat raw and terrier meal and a spoonful of white cider vinegar every day, best of luck. :-)