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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.

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Tsurugimaru Go Awakoku HikarinomiyaSireTsurugimaru Go Awakoku HikarinomiyaAKIHO 18-3799 · ♂ Red · Japan · 2018Own COI 1.56% over 5 generations B' Aka Yuri Go ZipanguDamB' Aka Yuri Go ZipanguAKIHO 18-78 · ♀ Red · Belarus · 2017Own COI 1.76% over 5 generations

Genetic indicators of the litter
The three figures are recalculated for the generations chosen.

COI — inbreeding

9.57%

Moderate. Common ancestors: Hokushuu Go Senshuu Takashihamasou, Tenshin Go Hamanakodou, Kenshin Go Kouyazan Miyauchisou.

AVK — distinct ancestors

75.8%

47 distinct ancestors out of 62 possible.

Pedigree completeness

100%

Complete pedigree over 5 generations.

Value of this litter for the breed's diversity

Average lines — the puppies would be rarer than 68% of the Akita born in the last 15 years (since 2012)

Litter: 68% ♂ Sire: Average lines · 49% ♀ Dam: Average lines · 45%

How often the puppies' ancestors (over 6 generations) appear in the pedigrees of the 27,505 recent dogs: rare lines bring new genes to the breed.

Common ancestors and how they connect 3

Over 5 generations: each ancestor found on both the sire's and the dam's side, and what it adds to the COI.

AncestorSire's sideDam's sideShare of the COI
Hokushuu Go Senshuu Takashihamasou ♂ gen. 2 gen. 3 6.25%
Tenshin Go Hamanakodou ♂ gen. 3 gen. 3 3.13%
Kenshin Go Kouyazan Miyauchisou ♂ gen. 5 ×2 gen. 5 0.2%
COI over 5 generations9.57%

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.

LitterTsurugimaru Go Awakoku HikarinomiyaTsurugimaruHokushuu Go Senshuu TakashihamasouHokushuuB' Aka Yuri Go ZipanguB' Aka YuriHachi Go Awakoku HikarinomiyaHachiShuutou Go Kouyasan HashitaniShuutouHotaru Go Kouyazan MiyauchisouHotaruKenshin Go Kouyazan MiyauchisouKenshinShiraume Go Awakoku HikarinomiyaShiraumeTenshin Go HamanakodouTenshinSoushin Go Senshuu TakashihamasouSoushinAyame Go Wadashima MyoujinsouAyame

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.

Same colour, same dog: these ancestors appear several times in this pedigree.

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