The PEVISA program is in effect between 1.1.2013-31.12.2015.
The parents of a litter must have a hip screen statement before mating. The threshold value for registering the parent’s litter is hip dysplasia grade C. The number of registered offspring for one dog is 21 puppies at maximum. However, the last litter exceeding this number will be registered in whole.
Abnormal formation of the hip socket – hip dysplasia, HD, is a hereditary development disorder and its severity is also affected by factors in the growth environment. Factors affecting the disease are the amount of exercise, nutrition and speed of growth.
Elbow joint osteochondrosis and elbow dysplasia
Elbow joint dysplasia, a developmental disorder of the elbow joint, can be divided into several different forms. One of these is osteochondrosis dissecans, i.e. a developmental disorder of the articular cartilage cells where the ossification of the surface of the articular cartilage is disturbed during the fastest growth stage. The disorder can lead to osteoarthritis. Two other forms of elbow problems in dogs are ununited anconeal process (processus anconeus) and/or fragmented coronoid process of the ulna (processus coronoideus). These forms can occur together or separately. More attention should be paid to elbow joints in the future.
Epilepsy can be defined as a condition where the dog has recurring seizures due to an unknown cause. This means that when no other cause is found for seizures, the remaining diagnosis is epilepsy. The exclusion of other diseases requires thorough clinical tests. Epilepsy can be divided into two different types. One is epilepsy acquired during the dog’s life, so-called secondary epilepsy, and the other is hereditary, i.e. primary (=”actual”) epilepsy. Only a few unrelated cases of epilepsy have been diagnosed in Finland.
PRA is an acronym of the words progressive retinal atrophy, i.e. progressing atrophying of the retina. Due to the slow progress of the atrophy, the impact on the dog’s vision is usually not noticed as the dog learns to adapt to the situation and compensates its weakening vision with other senses. There is no treatment, but the process of becoming completely blind takes such a long time that the dog will usually become accustomed to blindness fairly well and be able to cope in everyday life. The illness is slowly becoming more common. In Holland, only a few isolated cases have been diagnosed.
Type 1 von Willebrand’s bleeding disorder
Type 1 von Willebrand’s bleeding disorder is a hereditary disorder found in many dog breeds. A dog will get the disease if it inherits a gene mutation from both parents. The bodies of affected dogs have a deficiency of a protein called the von Willebrand factor, which is essential in the blood clotting process. Lack of this protein can cause lethal bleeding following a surgery or a large wound, for example. The mutation causing the illness can be identified with a DNA test, making it possible to positively determine dogs that are free of the illness (having two copies of the normal gene), dogs that are carriers of the disease (having one copy of the normal gene and one copy of the deficient gene), and affected dogs (having two copies of the deficient gene). Therefore the test makes it possible to remove the gene causing this disease from the population quickly and completely, but it also gives the possibility to mate dogs free of the disease with carriers without any of the puppies getting the disease. (Text from Thermo Fisher Scientific Inc)
Type 1 vWd tests are done during different events arranged by the club. If you do not want to test your dog during such events, please contact Anne Leppänen at anne.leppanen(at)hazebad.com
Neurological issues in the Stabyhoun breed
In April 2009, abnormal behaviour was reported in several puppies from one litter in Holland. After this report, issues were reported about earlier litters as well as litters born later on. All in all, the problem has occurred in five litters. Medical tests have so far not revealed anything concrete, but it seems to be a neurological problem.
At an age of c. 5-6 months, the puppy starts to behave compulsively. This behaviour increases in frequency, is repetitive and it cannot be stopped. The puppy has become ”stuck” in a specific movement model: it runs around in a circle around itself or furniture; it never runs backwards or back and forth. Affected puppies have an increased need for moving and exercise and they are not able to eat independently, so they lose a significant amount of weight. There is no treatment for the condition, so the puppies must be euthanized.
When the breeding lines shared by the affected litters were examined in Holland, the result has been a group of breeding dogs which all had pedigrees with problems on both the female’s and male’s side. This may be a very widely spread problem in the breed. The cause could be a mutation, which would suggest that breeders have not paid attention to pedigree charts and inbreeding has occurred.
So far no cause has been found for the abnormality, but it is assumed that it may be hereditary. The goal is to get a ”grasp” of this disease and prevent it from spreading any further.