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:
BOULETTE DE LA ORAGE D'MCKEE


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 58 2 2 2 3 8 12 14 20
Max. ancestor count 510 2 4 8 16 32 64 128 256
Ancestor loss 452 0 0 0 0 0 0 0 0
Ancestor loss % 88.6% 0 0 0 0 0 0 0 0
Ancestors Genetic Contribution % # of appearances 1 2 3 4 5 6 7 8
50.00% 1 1 0 0 0 0 0 0 0
MCKEE'S BIEN-AIME DE RUHLAND 50.00% 1 1 0 0 0 0 0 0 0
ENSTROM'S SANDMAN'S PORKY 25.00% 1 0 1 0 0 0 0 0 0
25.00% 1 0 1 0 0 0 0 0 0
LAFOREST'S JOLLY SANDMAN 18.75% 2 0 0 1 1 0 0 0 0
ENSTROM'S SANDMAN'S LOVETTE 12.50% 1 0 0 1 0 0 0 0 0
BURLINGTON BERTI OF BORISTI 9.38% 2 0 0 0 1 1 0 0 0
LAFOREST'S DUTCHES OF MITZI 9.38% 2 0 0 0 1 1 0 0 0
LA FOREST'S CREAM PUFF 6.25% 3 0 0 0 0 1 2 0 0
BENHOOKS JONATHAN OF FLITCHSTAR 4.69% 2 0 0 0 0 1 1 0 0
BITTER SWEET OF BORISTI 4.69% 2 0 0 0 0 1 1 0 0
4.69% 2 0 0 0 0 1 1 0 0
WINDMARKS GINNY LYND 3.13% 1 0 0 0 0 1 0 0 0
3.13% 3 0 0 0 0 0 1 2 0
3.13% 3 0 0 0 0 0 1 2 0
TOMMYVILLE TINTORETTO 3.13% 1 0 0 0 0 1 0 0 0
2.34% 2 0 0 0 0 0 1 1 0
BENHOOKS JACKIE OF MUFFETOWN 2.34% 2 0 0 0 0 0 1 1 0
TERRETTE'S GLORIANA LA REINE OF BORISTI 2.34% 2 0 0 0 0 0 1 1 0
TOMMYVILLE TROGLODYTE OF HERNHILL 1.56% 1 0 0 0 0 0 1 0 0
BRITHMEL DWYNWEN OF TOMMYVILLE 1.56% 1 0 0 0 0 0 1 0 0
TOMMYVILLE TWEED EFFECT 1.56% 2 0 0 0 0 0 0 2 0
1.56% 1 0 0 0 0 0 1 0 0
BENHOOKS JEREBOAM 1.17% 2 0 0 0 0 0 0 1 1
BENHOOKS SADIE 1.17% 2 0 0 0 0 0 0 1 1
BENHOOKS CHERRY BRANDY 1.17% 2 0 0 0 0 0 0 1 1
BATON OF BORISTI 1.17% 2 0 0 0 0 0 0 1 1
TERRETTE'S TOURBILLON D'GAMIN 1.17% 2 0 0 0 0 0 0 1 1
TERRETTE'S RENEE BRUME DE MIEL 1.17% 2 0 0 0 0 0 0 1 1
0.78% 2 0 0 0 0 0 0 0 2
DOGWOOD LYRIC OF TOMMYVILLE 0.78% 1 0 0 0 0 0 0 1 0
BENHOOKS SWEET WILLIAM 0.78% 2 0 0 0 0 0 0 0 2
TOMMYVILLE TAMZIN 0.78% 2 0 0 0 0 0 0 0 2
0.78% 1 0 0 0 0 0 0 1 0
BENHOOKS CHARLOTTE 0.39% 1 0 0 0 0 0 0 0 1
BENHOOKS MARIE LOUISE 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
0.39% 1 0 0 0 0 0 0 0 1
HAMPTON'S PETITE CHERIE 0.39% 1 0 0 0 0 0 0 0 1
TERRETTE'S CHEF D'OEUVRE GAMIN 0.39% 1 0 0 0 0 0 0 0 1
TERRETTE'S FILS DE BIJOU 0.39% 1 0 0 0 0 0 0 0 1
TERRETTE'S D'OR BRUME DE BIJOU 0.39% 1 0 0 0 0 0 0 0 1
QUATT HONEY BEAR 0.39% 1 0 0 0 0 0 0 0 1
0.39% 1 0 0 0 0 0 0 0 1