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:
BANDOG'S THE NIGHT STALKER


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 65 2 4 6 7 9 12 18 25
Max. ancestor count 510 2 4 8 16 32 64 128 256
Ancestor loss 445 0 0 0 0 0 0 0 0
Ancestor loss % 87.3% 0 0 0 0 0 0 0 0
Ancestors Genetic Contribution % # of appearances 1 2 3 4 5 6 7 8
BANDOG'S ONE IN A MILLION 50.00% 1 1 0 0 0 0 0 0 0
BANDOG'S CACHET 50.00% 1 1 0 0 0 0 0 0 0
BANDOG'S EARNIN' RESPECT 37.50% 2 0 1 1 0 0 0 0 0
K N' D FOXY JOE OF COX'S GOODTIME 25.00% 1 0 1 0 0 0 0 0 0
BANDOG'S JOY TO THE WORLD 25.00% 1 0 1 0 0 0 0 0 0
BANDOGS CLASS ACT 25.00% 1 0 1 0 0 0 0 0 0
COX'S GOOD TIME DANDY ANDY 18.75% 4 0 0 0 2 2 0 0 0
15.63% 5 0 0 0 1 2 2 0 0
COX'S GOOD TIME DORENE 15.63% 5 0 0 0 1 2 2 0 0
COX'S GOOD TIME ACE IN THE HOLE 12.50% 1 0 0 1 0 0 0 0 0
12.50% 1 0 0 1 0 0 0 0 0
12.50% 1 0 0 1 0 0 0 0 0
LEBULL ADAMS DINA OF RAGTIME 12.50% 1 0 0 1 0 0 0 0 0
12.50% 1 0 0 1 0 0 0 0 0
9.38% 2 0 0 0 1 1 0 0 0
COX'S GOOD TIME APRILLE 9.38% 2 0 0 0 1 1 0 0 0
FAIRMONTS HEART TO BEAT 7.81% 5 0 0 0 0 1 2 2 0
7.81% 5 0 0 0 0 1 2 2 0
6.25% 1 0 0 0 1 0 0 0 0
6.25% 1 0 0 0 1 0 0 0 0
JIMMY LEE'S SPARKLE 5.47% 8 0 0 0 0 0 1 3 4
COX'S GOOD TIME LA TIGRE 4.69% 2 0 0 0 0 1 1 0 0
COX'S GOOD TIME GOGO GIRL 4.69% 2 0 0 0 0 1 1 0 0
JIMMY LEE'S BANDOLERO OF ONO 3.91% 5 0 0 0 0 0 1 2 2
HAMPTON'S CHEVALIER 2.34% 5 0 0 0 0 0 0 1 4
FAIRMONT'S RADAR AHEAD 2.34% 2 0 0 0 0 0 1 1 0
COXS GOOD TIME PETITE POUPEE 2.34% 2 0 0 0 0 0 1 1 0
BURLINGTON BERTI OF BORISTI 2.34% 2 0 0 0 0 0 1 1 0
WINDMARKS POLKA DOT ANNIE 2.34% 2 0 0 0 0 0 1 1 0
1.95% 4 0 0 0 0 0 0 1 3
JIMMY LEE'S FLIP 1.56% 3 0 0 0 0 0 0 1 2
1.17% 2 0 0 0 0 0 0 1 1
1.17% 2 0 0 0 0 0 0 1 1
COX'S GOOD TIME PIERRE 1.17% 2 0 0 0 0 0 0 1 1
COX'S PETITE BABETTE 1.17% 2 0 0 0 0 0 0 1 1
BENHOOKS JONATHAN OF FLITCHSTAR 1.17% 2 0 0 0 0 0 0 1 1
TOMMYVILLE TINTORETTO 1.17% 2 0 0 0 0 0 0 1 1
1.17% 2 0 0 0 0 0 0 1 1
HAMPTON'S MYSTIQUE 0.39% 1 0 0 0 0 0 0 0 1
HAMPTON'S POUPEE D'OR 0.39% 1 0 0 0 0 0 0 0 1
TERRETTE'S GLORIANA LA REINE OF BORISTI 0.39% 1 0 0 0 0 0 0 0 1
TERRETTE'S TOURBILLON D'GAMIN 0.39% 1 0 0 0 0 0 0 0 1
0.39% 1 0 0 0 0 0 0 0 1
COX'S PETITE GIDGET 0.39% 1 0 0 0 0 0 0 0 1
0.39% 1 0 0 0 0 0 0 0 1
0.39% 1 0 0 0 0 0 0 0 1
0.39% 1 0 0 0 0 0 0 0 1
BENHOOKS JACKIE OF MUFFETOWN 0.39% 1 0 0 0 0 0 0 0 1
BITTER BRANDY OF BORISTI 0.39% 1 0 0 0 0 0 0 0 1
TOMMYVILLE TROGLODYTE OF HERNHILL 0.39% 1 0 0 0 0 0 0 0 1
BRITHMEL DWYNWEN OF TOMMYVILLE 0.39% 1 0 0 0 0 0 0 0 1