Ancestor calculations 8 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:
TEUN VAN HARTOGS VREUGD


Coefficient of Inbreeding (COI):

Analysis Summary # of dogs Gen 1 Gen 2 Gen 3 Gen 4 Gen 5 Gen 6 Gen 7 Gen 8
Ancestors in 8 generations 41 2 2 2 2 3 6 9 12
Max. ancestor count 510 2 4 8 16 32 64 128 256
Ancestor loss 469 0 0 0 0 0 0 0 0
Ancestor loss % 92.0% 0 0 0 0 0 0 0 0
Ancestors Genetic Contribution % # of appearances 1 2 3 4 5 6 7 8
SAMUEL DU SOURIRE DOUX 50.00% 1 1 0 0 0 0 0 0 0
50.00% 1 1 0 0 0 0 0 0 0
25.00% 1 0 1 0 0 0 0 0 0
HELENE DU SOURIRE DOUX 25.00% 1 0 1 0 0 0 0 0 0
12.50% 1 0 0 1 0 0 0 0 0
ADELAIDE DU SOURIRE DOUX 12.50% 1 0 0 1 0 0 0 0 0
BARRY-BLANC DE LA PARURE 6.25% 1 0 0 0 1 0 0 0 0
URSELA DE LA PARURE 6.25% 1 0 0 0 1 0 0 0 0
3.91% 8 0 0 0 0 0 0 2 6
URIEL VON RATIBOR UND CORVEY 3.91% 2 0 0 0 0 1 0 1 0
LE BLANC VON DER GRIMMELSBURG 3.13% 1 0 0 0 0 1 0 0 0
GERMAINE DE LA PARURE 3.13% 1 0 0 0 0 1 0 0 0
VOILA COCO VON RATIBOR UND CORVEY 3.13% 2 0 0 0 0 0 2 0 0
LANCEFIELD LADY PUPPET 2.73% 4 0 0 0 0 0 1 0 3
WATTEAU VON RATIBOR UND CORVEY 1.95% 2 0 0 0 0 0 1 0 1
BANJOLIQUE DE LA PARURE 1.56% 1 0 0 0 0 0 1 0 0
ZENO VON DER GRIMMELSBURG 1.56% 1 0 0 0 0 0 1 0 0
1.56% 1 0 0 0 0 0 1 0 0
HUGUETTE VON RATIBOR UND CORVEY 1.56% 2 0 0 0 0 0 0 2 0
INCONNUE INES VON RATIBOR UND CORVEY 0.78% 1 0 0 0 0 0 0 1 0
0.78% 1 0 0 0 0 0 0 1 0
GUSTAVE VON RATIBOR UND CORVEY 0.78% 2 0 0 0 0 0 0 0 2
NADINE VON RATIBOR UND CORVEY 0.78% 2 0 0 0 0 0 0 0 2
HIBOU VON RATIBOR UND CORVEY 0.78% 2 0 0 0 0 0 0 0 2
0.78% 1 0 0 0 0 0 0 1 0
NANETTE VON RATIBOR UND CORVEY 0.78% 1 0 0 0 0 0 0 1 0
TEXAN TIM OF QUATT 0.78% 1 0 0 0 0 0 0 1 0
0.78% 1 0 0 0 0 0 0 1 0
DANIELLE VON DER GRIMMELSBURG 0.39% 1 0 0 0 0 0 0 0 1
CHEVALIER VON DER GRIMMELSBURG 0.39% 1 0 0 0 0 0 0 0 1
0.39% 1 0 0 0 0 0 0 0 1
0.39% 1 0 0 0 0 0 0 0 1
QUATT TIGER TIM 0.39% 1 0 0 0 0 0 0 0 1
MARIA SNOW OF QUATT 0.39% 1 0 0 0 0 0 0 0 1