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:
SHORE LOOKS R EVERYTHING


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 43 2 4 2 2 2 3 5 10
Max. ancestor count 510 2 4 8 16 32 64 128 256
Ancestor loss 467 0 0 0 0 0 0 0 0
Ancestor loss % 91.6% 0 0 0 0 0 0 0 0
Ancestors Genetic Contribution % # of appearances 1 2 3 4 5 6 7 8
PETIT MOTIF BE ON THE LOOKOUT 50.00% 1 1 0 0 0 0 0 0 0
SHORE TRES BON CHIEN BETTY BOOP 50.00% 1 1 0 0 0 0 0 0 0
25.00% 1 0 1 0 0 0 0 0 0
25.00% 1 0 1 0 0 0 0 0 0
25.00% 1 0 1 0 0 0 0 0 0
TRES BON CHIEN FOR SHORE 25.00% 1 0 1 0 0 0 0 0 0
12.50% 1 0 0 1 0 0 0 0 0
LEBULL'S ARCTIC FRONT TRES BON CHIEN 12.50% 1 0 0 1 0 0 0 0 0
6.25% 1 0 0 0 1 0 0 0 0
KARENDON'S SOPHIE AT LEBULL 6.25% 1 0 0 0 1 0 0 0 0
OMAR SHARIF DE LA PARURE 3.52% 2 0 0 0 0 1 0 0 1
KARENDON'S PREMIERE EDITION 3.13% 1 0 0 0 0 1 0 0 0
COLONEL BLANC DE LA PARURE 1.56% 1 0 0 0 0 0 1 0 0
ANDREA DES GENTILS MINOIS 1.56% 1 0 0 0 0 0 1 0 0
1.56% 1 0 0 0 0 0 1 0 0
COLONEL TRUSARDI DE LA PARURE 0.78% 1 0 0 0 0 0 0 1 0
ZARTAN VON DER GRIMMELSBURG 0.78% 1 0 0 0 0 0 0 1 0
BONBONNIERE-BLANCHE DE LA PARURE 0.78% 1 0 0 0 0 0 0 1 0
HEUREUX HENRI DE LA PARURE 0.78% 1 0 0 0 0 0 0 1 0
0.78% 1 0 0 0 0 0 0 1 0
WAMBO DE LA PARURE 0.39% 1 0 0 0 0 0 0 0 1
ZUT-ZOLA VON RATIBOR UND CORVEY 0.39% 1 0 0 0 0 0 0 0 1
QUINCY VON DER GRIMMELSBURG 0.39% 1 0 0 0 0 0 0 0 1
LE BLANC VON DER GRIMMELSBURG 0.39% 1 0 0 0 0 0 0 0 1
GERMAINE DE LA PARURE 0.39% 1 0 0 0 0 0 0 0 1
VOILA COCO VON RATIBOR UND CORVEY 0.39% 1 0 0 0 0 0 0 0 1
NANDA DE LA PARURE 0.39% 1 0 0 0 0 0 0 0 1
CHIRINE MA JOIE 0.39% 1 0 0 0 0 0 0 0 1
KISHNIGA'S EBONY 0.39% 1 0 0 0 0 0 0 0 1