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:
BUTTERGATE BEAR OF QUATT


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 59 2 2 2 4 8 12 16 24
Max. ancestor count 510 2 4 8 16 32 64 128 256
Ancestor loss 451 0 0 0 0 0 0 0 0
Ancestor loss % 88.4% 0 0 0 0 0 0 0 0
Ancestors Genetic Contribution % # of appearances 1 2 3 4 5 6 7 8
QUATT SNOWCLOWN 50.00% 1 1 0 0 0 0 0 0 0
50.00% 1 1 0 0 0 0 0 0 0
QUATT SNOWSPOT 25.00% 1 0 1 0 0 0 0 0 0
QUATT CUTIE OF KEIRANDA 25.00% 1 0 1 0 0 0 0 0 0
QUATT HONEYK 14.06% 4 0 0 0 1 2 1 0 0
12.50% 1 0 0 1 0 0 0 0 0
QUATT ANNABELLA 12.50% 1 0 0 1 0 0 0 0 0
HONEY KING OF QUATT 9.77% 7 0 0 0 0 1 3 2 1
QUATT BELLE DONNA 7.03% 4 0 0 0 0 1 2 1 0
LITTLE SURPRISE OF QUATT 6.25% 1 0 0 0 1 0 0 0 0
BYROCK SILVER LINING 6.25% 1 0 0 0 1 0 0 0 0
6.25% 1 0 0 0 1 0 0 0 0
CHEEKY CHARLIE OF QUATT 4.69% 2 0 0 0 0 1 1 0 0
QUATT HONEY BEAR 4.69% 6 0 0 0 0 0 1 3 2
ANNAVI FLEUR DE MIDI 4.69% 6 0 0 0 0 0 1 3 2
HONEY FAY OF QUATT 4.69% 2 0 0 0 0 1 1 0 0
QUATT HEIRENAS BAMBI 4.30% 9 0 0 0 0 0 0 2 7
QUATT PRIMA DONNA 3.52% 4 0 0 0 0 0 1 2 1
QUATT DARON 3.52% 7 0 0 0 0 0 0 2 5
QUATT TWEEDLE DUM OF HIVE 3.52% 4 0 0 0 0 0 1 2 1
QUATT QUERELA 3.13% 1 0 0 0 0 1 0 0 0
3.13% 1 0 0 0 0 1 0 0 0
3.13% 1 0 0 0 0 1 0 0 0
2.34% 2 0 0 0 0 0 1 1 0
2.34% 2 0 0 0 0 0 1 1 0
1.95% 4 0 0 0 0 0 0 1 3
QUATT SNOW FLAKE 1.95% 4 0 0 0 0 0 0 1 3
QUATT PRETTY SNOW 1.56% 3 0 0 0 0 0 0 1 2
SNOWANNA OF QUATT 1.56% 3 0 0 0 0 0 0 1 2
QUAINT QUATT 1.56% 1 0 0 0 0 0 1 0 0
STRAWBYN SALVIA 1.17% 2 0 0 0 0 0 0 1 1
TONI OF QUATT 0.78% 2 0 0 0 0 0 0 0 2
QUATT TIGER TIM 0.78% 2 0 0 0 0 0 0 0 2
0.78% 2 0 0 0 0 0 0 0 2
QUATT POPIN JAY 0.78% 2 0 0 0 0 0 0 0 2
QUATT BELLADONNA 0.78% 2 0 0 0 0 0 0 0 2
0.78% 1 0 0 0 0 0 0 1 0
QUATT MERRYLASS 0.39% 1 0 0 0 0 0 0 0 1
LINGFIELD SALLY MAY OF QUATT 0.39% 1 0 0 0 0 0 0 0 1
QUATT SNOW DOLLAR 0.39% 1 0 0 0 0 0 0 0 1
SNOWMAN OF QUATT 0.39% 1 0 0 0 0 0 0 0 1
ALYSIA OF QUATT 0.39% 1 0 0 0 0 0 0 0 1
QUATT BADGER 0.39% 1 0 0 0 0 0 0 0 1
0.39% 1 0 0 0 0 0 0 0 1