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 QUERELA


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 3 5 8 9 14 16 17
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 HONEYK 50.00% 1 1 0 0 0 0 0 0 0
QUAINT QUATT 50.00% 1 1 0 0 0 0 0 0 0
HONEY KING OF QUATT 25.00% 1 0 1 0 0 0 0 0 0
QUATT BELLE DONNA 25.00% 1 0 1 0 0 0 0 0 0
25.00% 1 0 1 0 0 0 0 0 0
QUATT HEIRENAS BAMBI 21.88% 5 0 0 0 2 3 0 0 0
QUATT TIGER TIM 20.31% 13 0 0 0 0 2 7 4 0
QUATT TWEEDLE DUM OF HIVE 18.75% 2 0 0 1 1 0 0 0 0
13.67% 21 0 0 0 0 0 2 8 11
QUATT HONEY BEAR 12.50% 1 0 0 1 0 0 0 0 0
ANNAVI FLEUR DE MIDI 12.50% 1 0 0 1 0 0 0 0 0
QUATT PRIMA DONNA 12.50% 1 0 0 1 0 0 0 0 0
QUATT DARON 12.50% 2 0 0 0 2 0 0 0 0
LINGFIELD SALLY MAY OF QUATT 12.50% 1 0 0 1 0 0 0 0 0
TEXAN TIM OF QUATT 12.50% 6 0 0 0 0 2 4 0 0
ANNCEY OF QUATT 11.33% 15 0 0 0 0 0 2 8 5
10.94% 5 0 0 0 0 2 3 0 0
MARIE ANN OF QUATT 8.98% 13 0 0 0 0 0 1 7 5
6.25% 1 0 0 0 1 0 0 0 0
TONI OF QUATT 6.25% 2 0 0 0 0 2 0 0 0
LA MIMI OF QUATT 6.25% 1 0 0 0 1 0 0 0 0
MARIA SNOW OF QUATT 6.25% 6 0 0 0 0 0 2 4 0
RANA OF QUATT 6.25% 14 0 0 0 0 0 0 2 12
QUATT SNOW FLAKE 6.25% 1 0 0 0 1 0 0 0 0
QUATT PENNY POPPET 6.25% 3 0 0 0 0 1 2 0 0
QUATT PRETTY SNOW 6.25% 1 0 0 0 1 0 0 0 0
GEORGIE GIRL 6.25% 1 0 0 0 1 0 0 0 0
SNOWMAN OF QUATT 4.69% 2 0 0 0 0 1 1 0 0
SUZARANA OF QUATT 4.69% 10 0 0 0 0 0 0 2 8
SUZANNE OF QUATT 4.30% 10 0 0 0 0 0 0 1 9
3.91% 5 0 0 0 0 0 1 2 2
NORTHGATE CLEOPATRA 3.52% 7 0 0 0 0 0 0 2 5
3.52% 7 0 0 0 0 0 0 2 5
3.13% 3 0 0 0 0 0 1 2 0
3.13% 1 0 0 0 0 1 0 0 0
3.13% 1 0 0 0 0 1 0 0 0
MYSTIC MEE OF QUATT 2.34% 3 0 0 0 0 0 1 0 2
BUTTONOAK MASTER OF QUATT 2.34% 2 0 0 0 0 0 1 1 0
AMANDA OF QUATT 2.34% 2 0 0 0 0 0 1 1 0
RIKI OF QUATT 1.56% 4 0 0 0 0 0 0 0 4
QUATT BABYCHAM 1.56% 2 0 0 0 0 0 0 2 0
PERNICKETY OF QUATT 0.78% 2 0 0 0 0 0 0 0 2
THE PIED PIPER OF QUATT 0.78% 1 0 0 0 0 0 0 1 0
0.78% 2 0 0 0 0 0 0 0 2
0.78% 2 0 0 0 0 0 0 0 2
0.78% 2 0 0 0 0 0 0 0 2
0.39% 1 0 0 0 0 0 0 0 1
0.39% 1 0 0 0 0 0 0 0 1