I request that none of our pups are speyed/neutered until they are older (have properly matured) but have been queried on this by someone. Is there any scientific evidence to back up that our breed mature later? Also, is there any evidence (even anecdotal) that says later speying/neutering is best? I stick by my belief that it is better done later, but would like to have some evidence to back it up.
Thanks everyone
