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Originally Posted by buidelwolf
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
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The thing is that there is no definitive notion of "linebreeding" or "inbreeding" - linebreeding is a form of inbreeding. And being that Rep is pretty solidly represented in almost every living CsV today, meaning all dogs are to some degree related to one another, 'inbreeding' is in fact still applicable. It's a term of relativity.
As I understand from US usage, "outcrossing" in the dog world means to breed to a dog of the same breed, from relatively unrelated lines. This is what I mean by saying this is not always the best breeding choice. Genetic diversity is important but must be weighed with all other factors as well.
As I have not so much experience with CsV so far, and only with other breeds, I can only say that some breeders who spend years, maybe decades, establishing "their line" find the use of an outcross - in some breed circles established as under ~%6 COI in 10 generations - risky in that it may dilute the traits in their lines and give puppies with unpredictable characteristics. Of course it is done, but only as carefully as tight linebreeding, too. Outcrossing doesn't fix everything, it helps some things, just like linebreeding doesn't fix everything, but helps some things.
Perhaps in a breed with a larger genetic pool, this is acceptable. But perhaps not, for, say CsV, you are right.
Quote:
Originally Posted by buidelwolf
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Very interesting! Thanks for posting these!