There are advantages and disadvantages to both purebred and mixed breed animals. Dr. Thomas Lenarduzzi, a veterinarian at Mississippi State University, said both purebred and mixed breed animals make wonderful pets. One advantage of purebred animals is their predictable temperaments. Certain behavioral qualities are among the reasons for the purebred process. It is easier to predict the irritability or sensitivity of these animals.
Size is another advantage of buying a purebred pet.
A breeder should be able to tell within 10 percent the size the animal will be as an adult. Other traits that pertain to an owner's needs are also easily predicted in purebred pets. These needs include pets that are watchdogs, hunting companions and compatible with small children. One obvious disadvantage to owning a purebred animal is cost. But a more significant disadvantage is hereditary disease.