Test a mating
Choose a sire and a dam to preview the pedigree and inbreeding of their future litter. You can also imagine a puppy that does not exist yet, from its two parents, and test its own mating.
SireRyuuichi Go Tamashi KenshaOwn COI 4.3% over 5 generations
DamHonjo Masamune TamikoOwn COI 0% over 5 generations Genetic indicators of the litter
COI — inbreeding
0.2%
Low. Common ancestor: Fuuetsu Go Shirai.
AVK — distinct ancestors
93.5%
58 distinct ancestors out of 62 possible.
Pedigree completeness
100%
Complete pedigree over 5 generations.
Value of this litter for the breed's diversity
Rare lines — the puppies would be rarer than 81% of the Akita born in the last 15 years (since 2012)
Litter: 81% ♂ Sire: Common lines · 35% ♀ Dam: Average lines · 59%
How often the puppies' ancestors (over 6 generations) appear in the pedigrees of the 27,502 recent dogs: rare lines bring new genes to the breed.
Common ancestors and how they connect 1
Over 5 generations: each ancestor found on both the sire's and the dam's side, and what it adds to the COI.
| Ancestor | Sire's side | Dam's side | Share of the COI |
|---|---|---|---|
| Fuuetsu Go Shirai ♂ | gen. 5 | gen. 5 | 0.2% |
| COI over 5 generations | 0.2% | ||
How the lines connect
Only the dogs that lead to a common ancestor are drawn. Each coloured line goes from a common ancestor down to its descendants. Click a dog to open its page.
Sire's side Dam's side Coloured circles: common ancestors, same colours as in the pedigree
How these figures are calculated
COI — Wright's formula: F = Σ (½)n₁+n₂+1 × (1 + FA), summed over every path through a common ancestor A. The number of generations must be fixed for two dogs to be comparable: a more complete pedigree mechanically raises the figure.
AVK — distinct ancestors divided by the theoretical number of ancestors. Over 5 generations there are 62 possible slots. 100% means no ancestor appears twice.
Completeness — the share of slots actually filled in. The AVK is misleading without it: a half-empty pedigree shows a low AVK even with no inbreeding at all, simply because data is missing.
Pedigree of the litter
The whole tree fits on screen. Pinch to zoom in on a dog.
Ryuuichi Go Tamashi Kensha ♂
Italy
Omoiyari Go Tamashi Kensha ♂Italy
Honbuten 137° Souken 2°Daiuchuu Oozora Go Aomori Mikamisou ♂
Japan
ITALIAN CHAMPIONKarin Go Tamashi Kensha ♀Italy
Zulema Go Tamashi Kensha ♀ItalyDare Go Tamashi Kensha ♂Italy
Narita Go Tamashi Kensha ♀Italy
Honjo Masamune Tamiko ♀
Russia
Junior Champion Russia, Junior Champion RKFHachirou Go Fuen No Oka ♂
Poland
POLAND CHAMPION, 4 x CAC, BOSKintarou Go Zaou Hirama ♂Japan
WORLD CHAMPION 2021, INTERCHAMPION, MULTICHAMPION, POLAND WINNER 2021 & BOB, Poland Champion, Macedonia Champion, Montenegro Champion, Poland Junior Champion, WORLD PUPPY WINNER 2017, Baby Club Winner 2017, Japanese Breeds Specialty Show Junior Winner 2018 & BOS, 2 x BOB Puppy, 4xJCAC, 3xJBOB, 10xCAC, 6xCACIB, 3xBOS, 4xBOBYunohana Go Fuen No Oka ♀Poland
P'Ayaka Go Jasu Shin ♀
HungaryE'Haru Go Jasu Shin ♂Hungary
Hungarian Puppy Winner, Akita Cup Waka Inu Winner Poland 2018Aomori Go Namitori ♀Poland