How old is the German Shepherd dog breed?

Separate the mom and the babies for numerous hours (maybe 3 starting out) then put them back together. Later on (2 weeks) start separating them for 8 hours. About 2 weeks later take them away from their mommy overnight and see how they do If they whine alot, put them back together and start from the 8 hour mark. Once they stop whining, they are weened.