Ancestor calculations 9 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:
BENHOOKS GOBLIN


Coefficient of Inbreeding (COI):

Analysis Summary # of dogs Gen 1 Gen 2 Gen 3 Gen 4 Gen 5 Gen 6 Gen 7 Gen 8 Gen 9
Ancestors in 9 generations 22 2 2 7 9 8 8 6 4 2
Max. ancestor count 1022 2 4 8 16 32 64 128 256 512
Ancestor loss 1000 0 0 0 0 0 0 0 0 0
Ancestor loss % 97.8% 0 0 0 0 0 0 0 0 0
Ancestors Genetic Contribution % # of appearances 1 2 3 4 5 6 7 8 9
BENHOOKS HAMLET 50.00% 1 1 0 0 0 0 0 0 0 0
BENHOOKS MISS GUINNESS 50.00% 1 1 0 0 0 0 0 0 0 0
BENHOOKS CIDER CUP 32.81% 7 0 0 1 1 4 1 0 0 0
BENHOOKS OLIVER TWIST 25.00% 1 0 1 0 0 0 0 0 0 0
BENHOOKS JANICE 25.00% 1 0 1 0 0 0 0 0 0 0
BENHOOKS CHARLOTTE 22.66% 8 0 0 0 2 1 4 1 0 0
22.27% 12 0 0 0 0 5 2 4 1 0
BENHOOKS MARIE LOUISE 22.27% 12 0 0 0 0 5 2 4 1 0
BENHOOKS SADIE 21.88% 4 0 0 0 3 1 0 0 0 0
BENHOOKS JEREBOAM 21.88% 4 0 0 0 3 1 0 0 0 0
BENHOOKS JACKIE OF MUFFETOWN 18.75% 2 0 0 1 1 0 0 0 0 0
18.75% 2 0 0 1 1 0 0 0 0 0
16.41% 7 0 0 0 1 1 4 1 0 0
14.06% 5 0 0 0 0 4 1 0 0 0
BENHOOKS JOSHUA 12.50% 1 0 0 1 0 0 0 0 0 0
BENHOOKS FIONA OF KISUMU 12.50% 1 0 0 1 0 0 0 0 0 0
BENHOOKS PERNOD 12.50% 1 0 0 1 0 0 0 0 0 0
BENHOOKS CAMILLA 12.50% 1 0 0 1 0 0 0 0 0 0
11.13% 12 0 0 0 0 0 5 2 4 1
11.13% 12 0 0 0 0 0 5 2 4 1
BENHOOKS PATRICE 6.25% 1 0 0 0 1 0 0 0 0 0
6.25% 1 0 0 0 1 0 0 0 0 0