A good place to start when determining how much canned food to feed a Miniature Schnauzer is the on the can. According to the Doctors Foster and Smith website, the guidelines on the back of high quality wet food cans offer appropriate suggestions for the range of food to be fed. Using the can's suggestions, adapt your dog's food intake based on your Schnauzer's activity level, heath and environment.
Knowing your Miniature Schnauzer's estimated caloric needs based on its resting energy requirement (RER) helps determine how much canned food should be given, according to the Pet Education website. To calculate RER take the dog's weight in kilograms and add 70. For a 14-pound Miniature Schnauzer, its RER is 6.35+70, or 76.35. For a neutered dog with average activity, the RER is multiplied by 1.6 to equal 122.16, making that the dog's estimated daily caloric intake.
Determining the right amount of canned food to feed a Miniature Schnauzer is a decision that should be made based on its individual needs. While the back of the can provides a good starting point, talk to your veterinarian about the specific feeding requirements of your pet.