Ancestor calculations 5 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:
STARHAVEN HOTDM HALLELUJAH


Coefficient of Inbreeding (COI):

Analysis Summary # of dogs Gen 1 Gen 2 Gen 3 Gen 4 Gen 5
Ancestors in 5 generations 39 2 3 8 10 10
Max. ancestor count 62 2 4 8 16 32
Ancestor loss 23 0 0 0 0 0
Ancestor loss % 37.1% 0 0 0 0 0
Ancestors Genetic Contribution % # of appearances 1 2 3 4 5
STARHAVEN'S MON SAUVAGE 50.00% 1 1 0 0 0 0
STARHAVEN'S LA ECSTASY 50.00% 1 1 0 0 0 0
ENSTROM'S SPIKE OF STARHAVEN 25.00% 1 0 1 0 0 0
CROCKETT'S RAM BULL N GIRL 25.00% 1 0 1 0 0 0
COX'S GOODTIME CHARLIE BROWN 25.00% 1 0 1 0 0 0
ENSTROM'S WILL HE MAKE IT 18.75% 2 0 0 1 1 0
ENSTROM'S PUDDIN'S PRINCESS 15.63% 3 0 0 0 2 1
ENSTROM'S EL'BEE GREAT 12.50% 1 0 0 1 0 0
12.50% 1 0 0 1 0 0
WANDA'S SUGAR MAN 12.50% 1 0 0 1 0 0
RAMBULL'S MINERVA 12.50% 1 0 0 1 0 0
COX'S GOOD TIME ACE IN THE HOLE 12.50% 1 0 0 1 0 0
COX'S GOODTIME MINDY LOU OFKN'D 12.50% 1 0 0 1 0 0
12.50% 1 0 0 1 0 0
WOLF'N WRINKLES J. EDGAR 9.38% 2 0 0 0 1 1
6.25% 2 0 0 0 0 2
ENSTROM'S VANILLA PUDDIN 6.25% 2 0 0 0 0 2
6.25% 1 0 0 0 1 0
6.25% 1 0 0 0 1 0
6.25% 1 0 0 0 1 0
RAMBULL'S SWEET DOTTY GHOST 6.25% 1 0 0 0 1 0
6.25% 1 0 0 0 1 0
6.25% 1 0 0 0 1 0
6.25% 1 0 0 0 1 0
JIMMY LEE'S SABLONNEUX D'OR 3.13% 1 0 0 0 0 1
COLLOM'S PETITE SHERRIE 3.13% 1 0 0 0 0 1
FAIRMONTS HEART TO BEAT 3.13% 1 0 0 0 0 1
3.13% 1 0 0 0 0 1
RAMBULL'S SWEET GABBY'S GIRL 3.13% 1 0 0 0 0 1
3.13% 1 0 0 0 0 1