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:
BILLET DOUX RUBAN BLANC BEVB'L


Coefficient of Inbreeding (COI):

Analysis Summary # of dogs Gen 1 Gen 2 Gen 3 Gen 4 Gen 5
Ancestors in 5 generations 51 2 4 6 8 13
Max. ancestor count 62 2 4 8 16 32
Ancestor loss 11 0 0 0 0 0
Ancestor loss % 17.7% 0 0 0 0 0
Ancestors Genetic Contribution % # of appearances 1 2 3 4 5
BILLET DOUX FABERGE 50.00% 1 1 0 0 0 0
WINDMARKS CHARMIN CLEAUDE 50.00% 1 1 0 0 0 0
TERRETTE'S TOURBILLON D'GAMIN 28.13% 6 0 0 0 3 3
JIMMY LEE'S FLIP 25.00% 1 0 1 0 0 0
BILLET DOUX RISETTE 25.00% 1 0 1 0 0 0
HAMPTON'S CHEVALIER 25.00% 2 0 0 2 0 0
BURLINGTON BERTI OF BORISTI 25.00% 1 0 1 0 0 0
WINDMARKS POLKA DOT ANNIE 25.00% 1 0 1 0 0 0
HAMPTON'S MYSTIQUE 12.50% 1 0 0 1 0 0
HAMPTON'S POUPEE D'OR 12.50% 2 0 0 0 2 0
12.50% 1 0 0 1 0 0
BENHOOKS JONATHAN OF FLITCHSTAR 12.50% 1 0 0 1 0 0
TOMMYVILLE TINTORETTO 12.50% 1 0 0 1 0 0
12.50% 1 0 0 1 0 0
HAMPTON'S PETITE CHERIE 9.38% 3 0 0 0 0 3
TERRETTE'S CHEF D'OEUVRE GAMIN 9.38% 3 0 0 0 0 3
HAMPTON'S VALENTINE 9.38% 3 0 0 0 0 3
TERRETTE'S GLORIANA LA REINE OF BORISTI 6.25% 1 0 0 0 1 0
HAMPTON'S GABRIELLE 6.25% 1 0 0 0 1 0
6.25% 1 0 0 0 1 0
BENHOOKS JACKIE OF MUFFETOWN 6.25% 1 0 0 0 1 0
TOMMYVILLE TROGLODYTE OF HERNHILL 6.25% 1 0 0 0 1 0
BRITHMEL DWYNWEN OF TOMMYVILLE 6.25% 1 0 0 0 1 0
TOMMYVILLE TWEED EFFECT 6.25% 2 0 0 0 0 2
TERRETTE'S RENEE BRUME DE MIEL 3.13% 1 0 0 0 0 1
TERRETTE'S FILS DE BIJOU 3.13% 1 0 0 0 0 1
BENHOOKS JEREBOAM 3.13% 1 0 0 0 0 1
BENHOOKS SADIE 3.13% 1 0 0 0 0 1
BATON OF BORISTI 3.13% 1 0 0 0 0 1
BENHOOKS CHERRY BRANDY 3.13% 1 0 0 0 0 1
DOGWOOD LYRIC OF TOMMYVILLE 3.13% 1 0 0 0 0 1
3.13% 1 0 0 0 0 1