Kurotetsu Go Izumisou

Registration n° JKCJS-08235/85 - NIPPO:57-2821

Breeder: not recorded
Sire: Kotetsu (Toratetsu) Go Koutokusou
Dam: Tenryu Noborihime Go Izumi Sou
Gender: Male
Date of birth: not recorded
Country of birth: Japan

Colour: Black and Tan

Genetic indicators

COI — inbreeding

3.13%

Low. Common ancestor: Tenkou Go Jounensou.

AVK — distinct ancestors

54.8%

34 distinct ancestors out of 62 possible. Among known ancestors only: 77.3%.

Pedigree completeness

71%

18 empty slots. The AVK takes them into account, so read both figures together.

Value for the breed's diversity

Rare lines — rarer than 98% of the Shiba born in the last 15 years (since 2012)

How often its ancestors (over 8 generations) appear in the pedigrees of the 11,211 recent dogs: rare lines bring new genes to the breed. Over: 6 generations 8 generations 10 generations

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
Tenkou Go Jounensou ♂	gen. 4 ×2	gen. 3	3.13%
COI over 5 generations			3.13%

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 + F_A), 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

The whole tree fits on screen. Pinch to zoom in on a dog.

Parents

Grandparents

Great-grandparents

BIS (1976), BOB (1981) Best Shiba at Grand National (Japan)Kotetsu (Toratetsu) Go Koutokusou ♂虎鉄号　高徳荘53-12483Black and Tan · 1977

Japan

Harukoma Go Koutokusou ♂春駒号　高徳荘JKC 311324Red · 1976

Japan

Naganobu Go Marutanisou ♂長信号丸谷荘

Japan

Sakuraharume Go Koutokusou ♀桜春女号　高徳荘

Japan

Chiharu Go Koutokusou ♀千春号　高徳荘JKC 361917

Japan

Rikisakura Go Fujinomiya Kensha ♂力桜号　富士宮犬舎NIPPO: 70604Red

Japan

Chigusa Go Koutokusou ♀千草号　高徳荘261241

Japan

Tenryu Noborihime Go Izumi Sou ♀NIPPO: 399321

1975 (62nd) Grand National Prime Minister Award (BIS); 1972 (59th) NIPPO Grand National Jun SaikoshoTenryuu Go Shinshuu Takeisou ♂天竜号　信州タケイ荘Red · 1971

Japan

Tenkou Go Jounensou ♂天光号　常念荘NIPPO: 46153Red

Japan

Miyaichihime Go Shinano Jotosou ♀宮一姫号

Japan

Kurokomame Go Shinshu Tenryuusou ♀

Shinanoichi Go Shinshuu Mitamurasou ♂信濃市号　信州三田村荘

Japan

Kikubeni Go Matsukawa Kensha ♀

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Generations Photos

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