Ancestor calculations 5 Generations

Understanding these calculations can be intricate, but we're here to help you understnad it.

Pedigree analysis relies on the database information and is only as accurate as the data available. Incomplete generations, where ancestors are unknown, are highlighted in red. To improve accuracy, missing dogs need to be added. If too many dogs are missing, the COI (Coefficient of Inbreeding) can be shown as 0.000%.


Ancestor Loss, Maximum Ancestors, Actual Ancestors:

The maximum potential number of ancestors in a pedigree can be calculated using the formula 2^(number of generations + 1) - 2. Ancestor loss is figured by comparing this maximum with the actual number of different ancestors. For example, in a four-generation pedigree with 30 dogs, if there are 30 unique dogs, there's no ancestor loss. But if there are only 26 unique dogs, indicating some inbreeding, the ancestor loss would be 13.3%.


Percentage of Genetic Contribution:

This estimates how much each ancestor contributes to the pedigree's genetics. Sire and dam each contribute 50%, grandsires and granddams 25%, great-grandparents 12.5%, and so on. Whenever an ancestor appears in the pedigree, their percentage values are added together. For instance, a dog in the grandparent generation contributes 25%, and if it also appears in the great-grandparent generation (12.5%), its total genetic contribution would be 37.5%.


Calculations for:
WINDMARKS THE RED BARON


Coefficient of Inbreeding (COI):
8.643%

Analysis Summary # of dogs Gen 1 Gen 2 Gen 3 Gen 4 Gen 5
Ancestors in 5 generations 30 2 4 8 9 11
Max. ancestor count 62 2 4 8 16 32
Ancestor loss 32 0 0 0 0 0
Ancestor loss % 51.6% 0 0 0 0 0
Ancestors Genetic Contribution % # of appearances 1 2 3 4 5
WINDMARKS CAJUN JOE 50.00% 1 1 0 0 0 0
WINDMARKS HOLLY BY GOLLY 50.00% 1 1 0 0 0 0
COX'S GOODTIME SUNDANCE KID 37.50% 2 0 1 1 0 0
WINDMARKS LAST CHANCE 25.00% 1 0 1 0 0 0
WINDMARKS PEACH PARFAIT 25.00% 1 0 1 0 0 0
WINDMARKS MISS ECHO 25.00% 1 0 1 0 0 0
COX'S GOODTIME CHARLIE BROWN 18.75% 2 0 0 1 1 0
COX'S GOODTIME MEAGAN OF ACE 18.75% 2 0 0 1 1 0
COX'S GOOD TIME ACE IN THE HOLE 18.75% 4 0 0 0 2 2
WINDMARKS JUMP IN JACK FLASH 18.75% 2 0 0 1 1 0
WINDMARKS FLASH DANCER 12.50% 1 0 0 1 0 0
12.50% 1 0 0 1 0 0
12.50% 1 0 0 1 0 0
12.50% 1 0 0 1 0 0
COX'S GOODTIME MINDY LOU OFKN'D 9.38% 2 0 0 0 1 1
COX'S GOODTIME SUGAR PLUM 9.38% 2 0 0 0 1 1
9.38% 2 0 0 0 1 1
9.38% 2 0 0 0 1 1
6.25% 2 0 0 0 0 2
COX'S GOOD TIME DORENE 6.25% 2 0 0 0 0 2
6.25% 1 0 0 0 1 0
3.13% 1 0 0 0 0 1
3.13% 1 0 0 0 0 1
COX'S GOOD TIME SANDMAN 3.13% 1 0 0 0 0 1
COX'S GOOD TIME PETITE MIMI 3.13% 1 0 0 0 0 1