Quote Originally Posted by Kfamr
IMO, until they are knocked out sleeping, they haven't had enough excercise.
Agreed.

My lab mixes I've walked from 2 months onward the 1 mile to the pond thru the woods. At least the 1 mile is what I walk, they usually have put in 3-5 miles chasing the scents across the trail. There is absolutely nothing wrong with giving a large breed or any size in between as much exercise as they wish to help build muscle tone. As another poster mentioned one wouldn't want to give them jumping or agility training until they are full grown. Even then I have never encouraged my Labs to jump.

As for walking immediately before or after meals- absolutely nothing wrong again in giving the dog a mile walk on a leash. Food goes in, puppy boo-boos go out. Dog gets exercised, and is ready to settle down for the night afterwards. A win-win for human and puppy.