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Reasons we are breeding from Dusza
Dusza has a Hip Score of 39; the average for the breed is 17. Many in the breed consider no dog with a hip score above average should be bred from. Hip Scores are taken from an X Ray done when the dog is over 1yr. At no time is the dog looked at. Its character, conformation or movement are not taken into account. Her closeset relatives have good hip scores
Below is an extract from a letter from Mr. Brian Turner, Chief Scrutineer, BVA/ KC Hip Dysplasia Scheme
“I am not aware of any work relating BVA/KC hip scores to the clinical manifestation of a clinical hip problem. The scheme is aimed at identifying dogs with normal hips for breeding, and identifying abnormal hips that should not be bred from; not predicting future clinical problems in an individual dog.
It seems that no one can say a high hip score is related to an actual hip problem appearing later in the dog or that a low hip score will mean there will no hip problems developing later in the dog.
In the Polish Lowland Sheepdog (PON) about 25% of the dogs X rayed have above average scores. So if none of these are bred from then the genetic material from those dogs would be lost from the breed. 25% seems a small loss but when one considers there were only a few PONS that survived the Second World war in Poland that formed the foundation of the breed plus selective breeding to breed to the standard that 25% is significant.
Below is an extract from an email from Prof Sampson (Genetics Consultant to the Kennel Club) “There may come a point in the future where limits are actually set, but this will not be based on an individual score, nor will it be introduced without a full evaluation of the potential effect such a decision might have on the overall breed population dynamics, that is why access to quantitative genetics is so important”.
Our anxiety that this loss of genetic material could lead to increasing the risk of a genetic disorder or an increased susceptability to common diseases I feel that a determined attempt must be made to reverse the exclusion of higher hip scored dogs and indicate there could be an advantage to the use of dogs with higher hip score in a managed way in a breeding programme. Until at least a prospective research programme on the outcome of various breeding strategies on all aspects of the dog has been carried out. I realise this would delay any final decision but we must be as sure as we can that no permanent damage to our dogs occurs by loosing genetic systems associated with above average hip scores.
Our ancestors spent centuries developing the breeds we know. We must be so careful we do not injure those breeds by not analysing completely and scientifically what we are doing to our dogs over just a few decades..
Dusza is a lovely typical Pon gentle, slightly reserved till she gets to know you and moves beautifully at all speeds. We feel not to breed from her would be a loss to the breed. In her first litter one pup Magda has been Hip scored at 20 and she is a lovely gentle PON.
This time Dusza has been mated to Walor who has a Low Hip score. He was X rayed in America, where they use a different system
http://www.bratsiostrapon.nl/pedigree_Bratsiostra_pon_SYMFONIA.htm
http://www.bratsiostrapon.nl/Walor%20z%20Gangu%20Dlugich.htm
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