Always down time before eating. I don't really give him down time after eating because he's still a very small pup so within 15-20 mins of eating he needs to go outside to have a poop. I let him out in the yard rather than going for a walk and he typically strolls around the yard, sniffing all his trees and bushes and whatever else before he takes a poop. So no vigorous exercise or anything but no crating or down time either (else he'd poop in there!).
Rough Collies - King (01/1994-01/2002) and Samson (2/14/2002-3/30/2014) - too good for this world
GSD - Hans (12/31/2013)