Larry Atherton
UKC Forum Member
Registered: Jun 2003
Location: Central Michigan
Posts: 6544 |
Travis,
I go by two numbers to help direct me. One is the relationship coefficient. The father and mother contributes 50% and the grandparents 25% and the greatgrand parents 12.5% and so on. Stylish Harry contributes 25% twice for a total of 50%. Since the father or mother can contribute at most 50% each, I don't feel one dog's contribution of 50% is out of line.
The other number is the CIO which has been scientically proven over many breeds that a CIO of 0.20 is usually pretty safe. That is unless you know of a genetic defect in the last 3 or 4 generations than that maybe a consideration.
Based on similiar crosses in the past, I would guess the pups CIO would be right around 0.15-0.17. (I didn't calculate that number.)
Now, all of the above takes a back seat to your goals and selecting mates with specific traits to reach your goals. Line breeding is just a tool. It can be used correctly or just as well incorrectly. It is the same as outcrossing. In my opinion outcrossing and line breeding are both more often used incorrectly than correctly. Both tools are often over looked for the all mighty pedigree. That type of breeding hurts our dogs more than well thought out crosses.
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Larry Atherton
Aim small miss small
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