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:
TERRETTE'S ROCHELLE DE LOTTIE


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 47 2 4 4 10 13 12 9 7 11
Max. ancestor count 1022 2 4 8 16 32 64 128 256 512
Ancestor loss 975 0 0 0 0 0 0 0 0 0
Ancestor loss % 95.4% 0 0 0 0 0 0 0 0 0
Ancestors Genetic Contribution % # of appearances 1 2 3 4 5 6 7 8 9
TERRETTE'S TOURBILLON ORAGE 50.00% 1 1 0 0 0 0 0 0 0 0
BOULETTE OF BORISTI 50.00% 1 1 0 0 0 0 0 0 0 0
TERRETTE'S TOURBILLON D'GAMIN 25.00% 1 0 1 0 0 0 0 0 0 0
25.00% 1 0 1 0 0 0 0 0 0 0
BENHOOKS CIDER CUP 25.00% 1 0 1 0 0 0 0 0 0 0
BADAZZ OF BORISTI 25.00% 1 0 1 0 0 0 0 0 0 0
TERRETTE'S CHEF D'OEUVRE GAMIN 18.75% 2 0 0 1 1 0 0 0 0 0
18.75% 3 0 0 1 0 2 0 0 0 0
BENHOOKS CHARLOTTE 18.75% 3 0 0 1 0 2 0 0 0 0
HAMPTON'S PETITE CHERIE 12.50% 1 0 0 1 0 0 0 0 0 0
12.50% 4 0 0 0 1 1 2 0 0 0
TERRETTE'S CHEF D'OEUVRE 9.38% 2 0 0 0 1 1 0 0 0 0
TERRETTE'S ENCHANTRESS 9.38% 2 0 0 0 1 1 0 0 0 0
BENHOOKS MARIE LOUISE 9.38% 3 0 0 0 1 0 2 0 0 0
6.25% 1 0 0 0 1 0 0 0 0 0
BENHOOKS CHERRY BRANDY 6.25% 1 0 0 0 1 0 0 0 0 0
BENHOOKS CRASH-LANDING 6.25% 1 0 0 0 1 0 0 0 0 0
BATON OF BORISTI 6.25% 1 0 0 0 1 0 0 0 0 0
SAHARA OF QUATT 6.25% 1 0 0 0 1 0 0 0 0 0
4.69% 2 0 0 0 0 1 1 0 0 0
TERRETTE'S MITZI 4.69% 2 0 0 0 0 1 1 0 0 0
4.69% 2 0 0 0 0 1 1 0 0 0
4.69% 2 0 0 0 0 1 1 0 0 0
4.69% 3 0 0 0 0 1 0 2 0 0
4.69% 3 0 0 0 0 1 0 2 0 0
QUATT TIGER TIM 3.91% 2 0 0 0 0 1 0 1 0 0
3.13% 1 0 0 0 0 1 0 0 0 0
2.34% 2 0 0 0 0 0 1 1 0 0
2.34% 2 0 0 0 0 0 1 1 0 0
2.15% 3 0 0 0 0 0 1 0 1 1
ANNCEY OF QUATT 1.95% 2 0 0 0 0 0 1 0 1 0
TONI OF QUATT 1.56% 1 0 0 0 0 0 1 0 0 0
QUATT BABYCHAM 1.56% 1 0 0 0 0 0 1 0 0 0
RANA OF QUATT 1.37% 3 0 0 0 0 0 0 1 1 1
SUZARANA OF QUATT 0.98% 2 0 0 0 0 0 0 1 0 1
RIKI OF QUATT 0.78% 3 0 0 0 0 0 0 0 1 2
0.78% 1 0 0 0 0 0 0 1 0 0
0.78% 1 0 0 0 0 0 0 1 0 0
SUZANNE OF QUATT 0.59% 2 0 0 0 0 0 0 0 1 1
0.59% 2 0 0 0 0 0 0 0 1 1
MARIE ANN OF QUATT 0.39% 1 0 0 0 0 0 0 0 1 0
NORTHGATE CLEOPATRA 0.20% 1 0 0 0 0 0 0 0 0 1
0.20% 1 0 0 0 0 0 0 0 0 1
0.20% 1 0 0 0 0 0 0 0 0 1
0.20% 1 0 0 0 0 0 0 0 0 1
0.20% 1 0 0 0 0 0 0 0 0 1