We recently rescued a BC mix (with Bernese Mountain Dog, we believe) puppy (Lucy). She is probably about 4 1/2 months old, and quite the bundle of energy. My wife takes her and our older BC on walks that are probably 4-5 miles per day (concrete and pavement). Lucy pulls pretty much the whole way, and seems to show no ill effect from the walks (no limping, stiffness, etc.).
As long as there are no apparent physical problems, should we be concerned that this might be too far for a puppy to walk daily? Could it have a negative impact on bone or muscle development that is not apparent now, but might show up later?
Thanks,
Jim