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:
QUATT TRUDIE


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 50 2 4 4 6 11 15 16 20
Max. ancestor count 510 2 4 8 16 32 64 128 256
Ancestor loss 460 0 0 0 0 0 0 0 0
Ancestor loss % 90.2% 0 0 0 0 0 0 0 0
Ancestors Genetic Contribution % # of appearances 1 2 3 4 5 6 7 8
QUATT SNOW JAYMES 50.00% 1 1 0 0 0 0 0 0 0
QUATT BERTHA 50.00% 1 1 0 0 0 0 0 0 0
QUATT SNOW DOLLAR 25.00% 1 0 1 0 0 0 0 0 0
JAYNE OF QUATT 25.00% 1 0 1 0 0 0 0 0 0
25.00% 1 0 1 0 0 0 0 0 0
QUATT HONEY CRYSTAL 25.00% 1 0 1 0 0 0 0 0 0
QUATT POPIN JAY 14.06% 2 0 0 1 0 0 1 0 0
TEXAN TIM OF QUATT 14.06% 4 0 0 0 2 0 0 2 0
QUATT TIGER TIM 13.28% 8 0 0 0 0 3 1 2 2
LA MIMI OF QUATT 12.50% 1 0 0 1 0 0 0 0 0
GEORGIE GIRL 12.50% 1 0 0 1 0 0 0 0 0
12.50% 1 0 0 1 0 0 0 0 0
QUATT HEIRENAS BAMBI 10.94% 3 0 0 0 1 1 1 0 0
9.77% 11 0 0 0 0 0 3 5 3
MARIE ANN OF QUATT 7.42% 6 0 0 0 0 0 4 1 1
QUATT PENNY POPPET 7.03% 2 0 0 0 1 0 0 1 0
MARIA SNOW OF QUATT 7.03% 4 0 0 0 0 2 0 0 2
ANNCEY OF QUATT 7.03% 7 0 0 0 0 0 3 2 2
QUATT HONEY BEAR 6.25% 1 0 0 0 1 0 0 0 0
6.25% 1 0 0 0 1 0 0 0 0
6.25% 1 0 0 0 1 0 0 0 0
RANA OF QUATT 5.47% 10 0 0 0 0 0 0 4 6
5.47% 3 0 0 0 0 1 1 1 0
NORTHGATE CLEOPATRA 4.69% 8 0 0 0 0 0 1 1 6
SUZANNE OF QUATT 4.69% 8 0 0 0 0 0 0 4 4
RIKI OF QUATT 3.91% 9 0 0 0 0 0 0 1 8
3.91% 6 0 0 0 0 0 1 1 4
3.52% 2 0 0 0 0 1 0 0 1
3.52% 2 0 0 0 0 1 0 0 1
QUATT SNOW FLAKE 3.13% 1 0 0 0 0 1 0 0 0
QUATT DARON 3.13% 1 0 0 0 0 1 0 0 0
MYSTIC MEE OF QUATT 3.13% 1 0 0 0 0 1 0 0 0
SNOWMAN OF QUATT 3.13% 1 0 0 0 0 1 0 0 0
SUZARANA OF QUATT 3.13% 5 0 0 0 0 0 0 3 2
SNOWBOY OF QUATT 3.13% 2 0 0 0 0 0 2 0 0
3.13% 1 0 0 0 0 1 0 0 0
THE PIED PIPER OF QUATT 2.34% 3 0 0 0 0 0 1 0 2
QUATT BELLADONNA 1.56% 1 0 0 0 0 0 1 0 0
TONI OF QUATT 1.56% 1 0 0 0 0 0 1 0 0
BUTTONOAK MASTER OF QUATT 1.56% 1 0 0 0 0 0 1 0 0
AMANDA OF QUATT 1.56% 1 0 0 0 0 0 1 0 0
1.56% 4 0 0 0 0 0 0 0 4
1.56% 4 0 0 0 0 0 0 0 4
1.17% 2 0 0 0 0 0 0 1 1
SNOWMAID OF QUATT 0.78% 1 0 0 0 0 0 0 1 0
0.78% 1 0 0 0 0 0 0 1 0
0.39% 1 0 0 0 0 0 0 0 1
0.39% 1 0 0 0 0 0 0 0 1
QUATT BABYCHAM 0.39% 1 0 0 0 0 0 0 0 1