Yukan Built Tonka Tuff
Registration n° 9100004558
Aust Ch
- Breeder & owner
- Anna-Lee Forsberg
- Kennel
- Yukan Shibas
- Gender
- Male
- Date of birth
- 16 February 2003
- Country of birth
- Australia
- Colour
- Red
- Breeding status
- Retired
Genetic indicators
COI — inbreeding
7.81%
Moderate. Common ancestors: Tetsu Go Hokusetsu Daihachiso, Yoshizakura Of Shinshu Ikeda Kensha, Gyokuryuujyo Of Gunma Katsumisow.
AVK — distinct ancestors
56.5%
35 distinct ancestors out of 62 possible. Among known ancestors only: 83.3%.
Pedigree completeness
67.7%
20 empty slots. The AVK takes them into account, so read both figures together.
Value for the breed's diversity
Rare pedigree — rarer than 98% of the Shiba born in the last 15 years (since 2012)
How often its ancestors (over 6 generations) appear in the pedigrees of the 11,605 recent dogs: using dogs with a rare pedigree helps keep diversity in the breed. Over: 6 generations 8 generations 10 generations
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.
| Ancestor | Sire's side | Dam's side | Share of the COI |
|---|---|---|---|
| Tetsu Go Hokusetsu Daihachiso ♂ | gen. 2 | gen. 3 | 6.25% |
| Yoshizakura Of Shinshu Ikeda Kensha ♂ | gen. 3 | gen. 5 | 0.78% |
| Gyokuryuujyo Of Gunma Katsumisow ♀ | gen. 3 | gen. 5 | 0.78% |
| COI over 5 generations | 7.81% | ||
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
The whole tree fits on screen. Pinch to zoom in on a dog.
Aust & JKC Ch.Tetsu Go Hokusetsu Daihachiso ♂JKC4-10945
Japan
Tetsuou Go Toyonaka Okamotosou ♂鉄王号 豊中岡本荘JapanJapan
Aus Ch.Glendalin Kyoto ♀ANKCV1272389
Australia
Aus Ch.Yoshizakura Of Shinshu Ikeda Kensha ♂JKC61-39048Japan
Gyokuryuujyo Of Gunma Katsumisow ♀Japan
Aust ChSherae Twisted Sister ♀6100001069AustraliaAust & JKC Ch.Tetsu Go Hokusetsu Daihachiso ♂JKC4-10945JapanAustraliaJapanSame colour, same dog: these ancestors appear several times in this pedigree.
Offspring and relatives
Grouped by litter, with both parents at the top of each block. Click to see the puppies of a dog.
Direct offspring 1 litter · 1 dog
♂ Yukan Built By TonkaRed · born & living in Australia
Half-siblings, sire's side 3 litters · 3 dogs
- ♂ Koketu Kumaborn in Australia
- ♂ Vulpecula Ozekiborn in Australia
- ♂ Kazumi The Red DragonRed · born in Australia
Half-siblings, dam's side 1 litter · 1 dog
♂ Vulpecula NozamiRed · born in Australia · 
lives in Finland