All lines carry one or more or these traits and your breeder should he able to give you a candid description of what is in your animal's genetic background. One further caution, the nicest puppy in a litter can mature into a very mediocre adult. Be prepared to critically evaluate your dog, because even if you paid a good price, you may still end up with a pet. These animals are not for breeding because these are serious genetic faults. The conscientious breeder will require that the animal be spayed, neutered or vasectomized before releasing the AKC registration papers if it has not been done prior to the sale.
Temperaments run the natural gamut.
Neutering or spaying does not affect the territoriality or protectiveness of the animals and they make excellent family dogs. The Rottweiler has recently seen a surge in popularity and many of the breeders now advertising in popular dog magazines have had little experience with the breed. Carefully investigate breeders before you buy a puppy. Talk to several breeders and ask them for names of people you can contact who have purchased puppies from them in the last few years. If they guarantee their animals against hip dysplasia or any other contingency, ask for names of people to contact who have had to have money refunded or a dog replaced.