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:
FABELHAFT TOKYO ROSE


Coefficient of Inbreeding (COI):
0.781%

Analysis Summary # of dogs Gen 1 Gen 2 Gen 3 Gen 4 Gen 5 Gen 6 Gen 7 Gen 8
Ancestors in 8 generations 55 2 4 3 6 8 8 12 12
Max. ancestor count 510 2 4 8 16 32 64 128 256
Ancestor loss 455 0 0 0 0 0 0 0 0
Ancestor loss % 89.2% 0 0 0 0 0 0 0 0
Ancestors Genetic Contribution % # of appearances 1 2 3 4 5 6 7 8
FABELHAFT MAJIC MARC'R 50.00% 1 1 0 0 0 0 0 0 0
FABELHAFT FLOWER POWER 50.00% 1 1 0 0 0 0 0 0 0
TIDEWATER'S MONTE CARLO JACKPOT 25.00% 1 0 1 0 0 0 0 0 0
25.00% 1 0 1 0 0 0 0 0 0
EL TORRO'S ROCH VOISINE 25.00% 1 0 1 0 0 0 0 0 0
25.00% 1 0 1 0 0 0 0 0 0
COX'S GOODTIME CHARLIE BROWN 15.63% 2 0 0 1 0 1 0 0 0
JACKPOT! SIR WINZALOT OF TW 12.50% 1 0 0 1 0 0 0 0 0
12.50% 1 0 0 1 0 0 0 0 0
COX'S GOOD TIME ACE IN THE HOLE 7.81% 2 0 0 0 1 0 1 0 0
COX'S GOODTIME MINDY LOU OFKN'D 7.81% 2 0 0 0 1 0 1 0 0
7.03% 3 0 0 0 0 2 0 1 0
COX'S GOOD TIME DORENE 7.03% 3 0 0 0 0 2 0 1 0
6.25% 1 0 0 0 1 0 0 0 0
JACKPOT! VELVET DREAMS PETTY 6.25% 1 0 0 0 1 0 0 0 0
COX'S GOOD TIME DANDY ANDY 6.25% 1 0 0 0 1 0 0 0 0
QUATT ARABELLA 6.25% 1 0 0 0 1 0 0 0 0
3.91% 2 0 0 0 0 1 0 1 0
3.91% 2 0 0 0 0 1 0 1 0
FAIRMONTS HEART TO BEAT 3.52% 3 0 0 0 0 0 2 0 1
3.52% 3 0 0 0 0 0 2 0 1
JACKPOT KWIK PIK TIKET PETTY 3.13% 1 0 0 0 0 1 0 0 0
QUATT HONEYK 3.13% 1 0 0 0 0 1 0 0 0
3.13% 1 0 0 0 0 1 0 0 0
JIMMY LEE'S SPARKLE 2.34% 4 0 0 0 0 0 0 2 2
JIMMY LEE'S BANDOLERO OF ONO 1.56% 2 0 0 0 0 0 0 2 0
IVY ROAD'S PETTY CASH JACKPOT 1.56% 1 0 0 0 0 0 1 0 0
1.56% 1 0 0 0 0 0 1 0 0
HONEY KING OF QUATT 1.56% 1 0 0 0 0 0 1 0 0
QUATT BELLE DONNA 1.56% 1 0 0 0 0 0 1 0 0
0.78% 1 0 0 0 0 0 0 1 0
0.78% 1 0 0 0 0 0 0 1 0
JIMMY LEE'S FLIP 0.78% 2 0 0 0 0 0 0 0 2
HAMPTON'S CHEVALIER 0.78% 2 0 0 0 0 0 0 0 2
0.78% 2 0 0 0 0 0 0 0 2
QUATT HONEY BEAR 0.78% 1 0 0 0 0 0 0 1 0
ANNAVI FLEUR DE MIDI 0.78% 1 0 0 0 0 0 0 1 0
QUATT PRIMA DONNA 0.78% 1 0 0 0 0 0 0 1 0
QUATT DARON 0.78% 2 0 0 0 0 0 0 0 2
QUATT TWEEDLE DUM OF HIVE 0.78% 1 0 0 0 0 0 0 1 0
QUATT HEIRENAS BAMBI 0.78% 2 0 0 0 0 0 0 0 2
0.39% 1 0 0 0 0 0 0 0 1
QUATT SNOW FLAKE 0.39% 1 0 0 0 0 0 0 0 1
QUATT PRETTY SNOW 0.39% 1 0 0 0 0 0 0 0 1
SNOWANNA OF QUATT 0.39% 1 0 0 0 0 0 0 0 1