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:
ROBB ISLE N FOXMOOR JAG


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 60 2 4 2 2 3 3 7 20
Max. ancestor count 510 2 4 8 16 32 64 128 256
Ancestor loss 450 0 0 0 0 0 0 0 0
Ancestor loss % 88.2% 0 0 0 0 0 0 0 0
Ancestors Genetic Contribution % # of appearances 1 2 3 4 5 6 7 8
ROBB ISLE STOCKS N BONDS 50.00% 1 1 0 0 0 0 0 0 0
FOXMOOR N ROBB ISLE BEZELL 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
DAGMAR DE LA PARURE 25.00% 1 0 1 0 0 0 0 0 0
KLEINCALVIN DELL'AKIRIS 12.50% 1 0 0 1 0 0 0 0 0
12.50% 1 0 0 1 0 0 0 0 0
ORESTE DELL'AKIRIS 6.25% 1 0 0 0 1 0 0 0 0
VIOLET BLANCHE DELL'AKIRIS 6.25% 1 0 0 0 1 0 0 0 0
COLONEL TRUSARDI DE LA PARURE 6.25% 2 0 0 0 0 2 0 0 0
OMAR SHARIF DE LA PARURE 4.30% 5 0 0 0 0 0 2 0 3
CHIRINE MA JOIE 3.52% 3 0 0 0 0 0 2 0 1
LATOIYA DELL'AKIRIS 3.13% 1 0 0 0 0 1 0 0 0
NOSTALGIE-BLANCHE DE LA PARURE 3.13% 1 0 0 0 0 1 0 0 0
COLONEL BLANC DE LA PARURE 1.56% 2 0 0 0 0 0 0 2 0
ANDREA DES GENTILS MINOIS 1.56% 2 0 0 0 0 0 0 2 0
COCO VON DER GRIMMELSBURG 1.56% 2 0 0 0 0 0 0 2 0
ZARTAN VON DER GRIMMELSBURG 1.56% 4 0 0 0 0 0 0 0 4
AMADEE MA JOIE 1.56% 2 0 0 0 0 0 0 2 0
BORN-Ö'S DOMINIQUE 1.56% 1 0 0 0 0 0 1 0 0
FRANCOISE HARDY DE LA PARURE 0.78% 1 0 0 0 0 0 0 1 0
INOVATION-PRINCE DE LA PARURE 0.78% 1 0 0 0 0 0 0 1 0
RAMONA PRINCESSE DE LA PARURE 0.78% 1 0 0 0 0 0 0 1 0
BONBONNIERE-BLANCHE DE LA PARURE 0.78% 2 0 0 0 0 0 0 0 2
HEUREUX HENRI DE LA PARURE 0.78% 2 0 0 0 0 0 0 0 2
0.78% 2 0 0 0 0 0 0 0 2
CORINNA VON DER GRIMMELSBURG 0.78% 2 0 0 0 0 0 0 0 2
0.78% 2 0 0 0 0 0 0 0 2
TRIOMPHE TIA DE LA PARURE 0.78% 2 0 0 0 0 0 0 0 2
L'ANGE DE LA PARURE 0.39% 1 0 0 0 0 0 0 0 1
FRANCOIS DE LA PARURE 0.39% 1 0 0 0 0 0 0 0 1
JOIE VAN EPPIES BARGIE 0.39% 1 0 0 0 0 0 0 0 1
BARON BALOU DE LA PARURE 0.39% 1 0 0 0 0 0 0 0 1
ASTA VON DER GRIMMELSBURG 0.39% 1 0 0 0 0 0 0 0 1
JEZEBEL DE LA PARURE 0.39% 1 0 0 0 0 0 0 0 1
ODILO VON DER GRIMMELSBURG 0.39% 1 0 0 0 0 0 0 0 1
GIBOULEE MA JOIE 0.39% 1 0 0 0 0 0 0 0 1
JACQUELLA GIGOLETTE 0.39% 1 0 0 0 0 0 0 0 1
0.39% 1 0 0 0 0 0 0 0 1
LEIBÖLL'S BONITA 0.39% 1 0 0 0 0 0 0 0 1