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Old 04-24-2009, 12:28 PM   #1 (permalink)
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Default general linebreeding question

I was wondering if the dogs are considered closely related if the mating check on PDB shows linebreeding in 5 generations like this:
5 - 4,4 ... in xxx
5 - 4 ... in yyy
4 - 3 ... in zzz

What does the linebreeding mean in terms of making a decision in choosing dogs for breeding? Does linebreeding on only few dogs will produce progeny with predictable qualities close to what those common dogs are known for producing?

I'm a complete dummy in pedigrees but I want to change that and gain a little knowledge I'm just interested for educational purposes, and I find mating check handy for looking for common ancestry in different pedigrees. Thank you!!!
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Old 04-24-2009, 12:34 PM   #2 (permalink)
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Default Re: general linebreeding question

Linebreeding is done to increase the chance of locking in a working ability, structure, etc. Showlines are typically more linebred than working lines. Showlines are also now seeing more linebreeding depression because of it. (less pups in a litter), so more isn't always better, sometimes it is, sometimes it's not. I personally, don't linebreed every generation. I outcross every other. So grandma oxana, linebred, diesel (her daughter) not linebred, jaxson (her son) linebred.
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Old 04-25-2009, 07:50 AM   #3 (permalink)
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Default Re: general linebreeding question

In the example you gave I actually like those combinations if....the 4-3 dog is super in the area I am looking to improve....and the parents of these this dog(4-5) also gave the same phenotype in this area. Hope this makes sense!
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Old 04-26-2009, 11:07 AM   #4 (permalink)
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Default Re: general linebreeding question

Thank you, Angela and Cliff!

Cliff, could you please elaborate a little bit with an example? Let's say, I want to improve hips so I look for a hip improver (4-3) and also make sure that the parents of this dog also were hip improvers or just had good hips themselves? What if I want to improve aggression?

I realize that linebreeding is not like put two good dogs with nice pedigrees together and see what happens, there should be a science behind it, but I'm still a little bit in a loss.

First I thought that outcrossing is the best then I started thinking that it may mean introducing too much of unpredictable qualities and unability to develop a breeding program, so linebreeding is important. Is a larger number of common dogs in the pedigree more preferable than just a two or three (sometimes I see 10, 12 pairs of 4-4, 4-5, 5-5, and with a 3-3 in there as well, in one dog's pedigree)?

I like the idea of outcrossing every other generation, though.
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Old 04-26-2009, 11:45 PM   #5 (permalink)
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Default Re: general linebreeding question

Well a 4-3 linebreeding on a noted hip improver like Aly Vordinsteinwald is something I would do if hips and conformation were two areas I was looking to improve. Since Aly has been shown to be an excellent producer of hips then the parents aren't as important unless they had something I want to stay away from. Now if it was agression that I was doing 4-3 type linebred on (like Falko vom Haus Sindern) then it gets more complicated as I look at Falko's parents, and the nerve strength of my females and the nerve strength of the dogs in generations 1,2,3. Nothing is worse then increasing agression without a foundation of nerve strength to keep the dog balanced. JMO
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Old 04-29-2009, 12:57 AM   #6 (permalink)
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Default Re: general linebreeding question

Thank you for the examples! Some food for thought for me...
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