I've noticed the same problem with my huskies. My dogs don't have the usual doggie breath that stinks but rather a really fishy smell. And that just started months ago. I feed them greenies and pedigrees breath buster before to help their breath and it seems to be working. I wanted to change the food initially but I started with their treats first. I always feed them the pupperoni beef jerkys with their meal and I have stopped doing that. Their breath is back to normal now. No smell after licks either. I'm sorry I wouldn't know about the urine smell because I think they stink already. But if you feel really concerned that something might be wrong, my best bet would be the vets. Otherwise, a change in diet would also help too.
