
Hi Lynd2008
like you i gave my Border Collie a marrow bone at a young age (4 months)
i also give as a treat a calcuim meat filled bone (from pet stores)
he is now 2 1/2 yrs and has great white teeth
the knuckle bone i keep up to 5 days but in a plastic bag and fridge when not in use, then chuck it as it will start to smell!!!
i tend to keep away from raw hide as the knots get stuck in his throat, on the odd occasion he'll have a long cigar type raw hide & most importantly I NEVER EVER LEAVE HIM ALONE WITH BONES/CHEWS/TOYS
Tell u what your GSD puppy will love
A Kong! (large size rubber bee hive shape toy- claim to be almost indestructable) i also bought some liver paste to put inside, u can also put a few dog biscuits, peanut butter smeared inside also works a treat - without food in i also freeze it - what a treat for any pup teething!
The first 6 months my dog was fed scrambled eggs, weetabix, porrige for breakfast and chicken/lamb or beef with rice and vegetables!!!
this is what the breeder (from the southern Border Collie association) recommended and i continued it.
Good luck with ur pup
Helen