[buidelwolf]

Paula, Thanks for the very nice video of Iran. He certainly has a great life with you, as he undoubtedly had with Margo! In appearance he might perhaps not be the most special, but he comes from a special line and it shows professionalism to use her. Good, having him as a breeding base in Brazil and fortunately we also have his beautiful offspring in Europe!

Pedrocalle:

But ... indeed there does not exist any dog that does not come from this line?

Nowadays, no, there is certainly no CSV without Rep in its pedigree (except the mixes….). Almost without exception even with a heavy dose.

Yukidomari:

the problem is not Rep but rather informed (or not informed) decisions on future breeding. In basic understanding of line-breeding or tightly in-bred lines, the problem is only that bad/unwanted traits have the ability to more quickly or severely manifest, but the same is true for good/wanted traits as well.

Regarding the last sentence: true but it’s a bit the opposite approach and some important preconditions are missing. Rep himself is not a problem indeed; like earlier stated, he’s been very important in settling important characteristics we have nowadays. The problem is that he was used too frequently and was mixed up too quickly in all lines and heavy inbreeding was severely and frequently practiced with him, while at the same time many CSV’s from those days with potention, simply faded away without offspring. The result was an irreversible narrowed gene pool with increasing average COI, with Rep prominently present in all CSV’s. Linebreeding (not inbreeding) as an instrument for settling preferred characteristics is to my opinion still a legitimate and effective method, if practised professionaly, occasionally, under strict conditions. Like if always soon outcrossing to almost unrelated dogs within the population follows to avoid negative recessive genes combining to homozygous with all its consequences. Outcrossing, with the correct meaning of it, isn’t possible anymore unfortunately within our race and therefore linebreeding should be undesired in order to protect the fragile genepool from further narrowing. So from this point of view it would perhaps be advisable using the last handful of CSV's with a low proportion of Rep, before they too fade away. Quite apart from all other conditions which one must take into account of course. Citing that the situation in other breeds is much worse is not an argument and is no reason to be not very careful and critical. Let us just learn from the mistakes made in numerous other breeds!

Back to the original topic Rep. The CSV Asta z Tondova CS (died 9 october 2002 at age 16 ½ years of age!), was a bitch with a COI below average and 0% inbreeding on Rep. He only occurs once in her full pedigree! Rep was only her great grandfather from fathers’ side. I unraveled some of her descendants and discovered some, probably still living today, with very low "Rep content":

Name CSV & % of Rep in COI (8 generations)
Edy od Buližníku 3,71%
Art Vlčí sen 4,22%
Urio du Clos des Deux Sapins 4,38%
Typhon du Clos des Deux Sapins 4,38%
Amarok Šedý chlup 4,60%