Good health is vitally important if you're planning
to breed your dog as this will have a strong influence on the success
of a pregnancy. During gestation and nursing, nutritional needs of the pregnant
dog and the developing fetuses, is a top priority. This is the
time to make sure the diet is optimal, so don't cut corners on
her food quality now.
You'll want to make sure there is no deficiency of vitamins and
minerals in the diet - such as calcium or zinc, because if there
is, the mother's body will get depleted by the primary needs of
the growing pups.
Food servings will gradually need to be increased, especially
with respect to protein, to make sure your dog has sufficient
reserves when the puppies arrive. You'll want to be well informed
on this subject prior to breeding.