We are very proud of this progress. Epilepsy is the second major inherited problem found in Vizslas. There is no testing mechanism for epilepsy and no certification program. If often recommend to breeders that they might choose to wait to breed their dogs until they reach the age of 3 years, since idiopathic or inherited epilepsy will generally be evident by that age. All reputable breeders are concerned with this problem and are very careful in breeding their dogs.
Reputable breeders offer guarantees against inherited diseases for their puppies.
Blood related disorders include Von Willibrands Disease, a type of canine haemophilia, and hypothroidism. None of these problems seem to be particularly common in the breed but they do exist. And again, any reputable breeder will offer a puppy contract which includes guarantees against inherited problems. A problem too often neglected by breeders of purebred dogs is that of temperament. There is much research both in canines and in other animals to indicate that temperament is highly heritable.