Yes, focus on teaching the puppy manners. First off, physically separate them when food or chews are part of the picture. Crate the pup or use baby gates, X-pens, or similar. The older dog should not have to worry about stressful mealtimes or having to defend his chews from the new pup.
You can also actively work on her manners by teaching her to settle on a 'place' (mat, bed, etc...) and then have her stay there (use a leash at first to make sure she stays put) while they each have a chew/treat.
Your older dog will be much less grumpy at the puppy when he doesn't have to constantly be guarding his stuff.
You can also actively work on her manners by teaching her to settle on a 'place' (mat, bed, etc...) and then have her stay there (use a leash at first to make sure she stays put) while they each have a chew/treat.
Your older dog will be much less grumpy at the puppy when he doesn't have to constantly be guarding his stuff.