all spayed /neutered. My cats were all neutered at about 5 or 6 months. Star was spayed before her first heat - our vet thought it was better than waiting. Sherman was not neutered till he was 18 months old- when we adopted him from his breeders. i think they waited till their dogs matured before spaying/neutering. When my son's year-old husky came to stay till we could find him a new home, he was neutered before being adopted out.