© Shitan Kennel
Hachiko Samurai Isamu
Registration n° LO20178140
- Breeder & owner
- Manuela Convertini Sara Pascarelli- Hachiko Samurai
- Kennel
- Hachiko Samurai
- Gender
- Male
- Date of birth
- 19 September 2020
- Country of birth & standing
- Italy
- Colour
- Red
Genetic indicators
COI — inbreeding
14.06%
High. Common ancestors: Fuuetsu Go Shirai, Ukyou Go Shirai, Yuri Go Ryuukensou, Momoka Go Musashi Aiwa, Mayu Nayu Go Shirai and 3 more.
AVK — distinct ancestors
50%
31 distinct ancestors out of 62 possible.
Pedigree completeness
100%
Complete pedigree over 5 generations.
Value for the breed's diversity
Very common lines — rarer than 3% of the Akita born in the last 15 years (since 2012)
How often its ancestors (over 6 generations) appear in the pedigrees of the 27,502 recent dogs: rare lines bring new genes to the breed. Over: 6 generations 8 generations 10 generations
Common ancestors and how they connect 8
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. 3gen. 4 ×2 | gen. 3 | 6.25% |
| Ukyou Go Shirai ♂ | gen. 4gen. 5 | gen. 3gen. 5 | 2.73% |
| Yuri Go Ryuukensou ♀ | gen. 4 | gen. 3 | 1.56% |
| Momoka Go Musashi Aiwa ♀ | gen. 4gen. 5 | gen. 4gen. 5 | 1.56% |
| Mayu Nayu Go Shirai ♀ | gen. 5 | gen. 3gen. 5 | 0.78% |
| Matsukaze Go Musashi Aiwa ♂ | gen. 5 | gen. 5 ×4 | 0.59% |
| Yuushou Go Musashi Aiwa ♂ | gen. 5 | gen. 4 ×2 | 0.39% |
| Awa Aihime Go Musashi Aiwa ♀ | gen. 5 | gen. 5 ×2 | 0.2% |
| COI over 5 generations | 14.06% | ||
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.
Shunkou Go Shoufuusha ♂
Japan
MULTI AKIHO WINNERShougetsu Go Zushi Murai ♂Japan
Tatsuki Go Shirai ♂Japan
Kurumi Go Shirai ♀Japan
Saori Go Shirai ♀Japan
No.1 Yoken B - 127th HonbutenFuuetsu Go Shirai ♂Japan
Kara Go Shirai ♀Japan
Ryouka Go Shirai ♀Japan
MULTI AKIHO WINNERMasato Go Shirai ♂JapanNo.1 Yoken B - 127th HonbutenFuuetsu Go Shirai ♂Japan
Yuri Go Ryuukensou ♀JapanSayaka Go Shirai ♀Japan
1st in class Seiken B Male at the 2012 Akita cupUkyou Go Shirai ♂JapanMayu Nayu Go Shirai ♀JapanSame 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.
Full siblings 1 litter · 1 dog
♀ Hachiko Samurai ImekoRed · 
born & living in Italy
Half-siblings, sire's side 5 litters · 7 dogs
♀ Sonoe Go Fukushu No KenshaRed · born & living in Italy
♀ Hachiko Samurai HoshikoRed · born & living in Italy
♂ Bogota GoRed · born & living in Italy
♀ Himawari No Hoseki Sakura GoRed · born & living in Italy
- ♀ Hachiko Samurai G'RyokoRed · born & living in Italy
♀ Hachiko Samurai GeishaRed · born & living in Italy
♀ Laika Go KeitoRed · born in Japan · 
lives in Poland
Half-siblings, dam's side 1 litter · 1 dog
♂ Hachiko Samurai E'TatsuyaRed · born & living in Italy
Added by ShitanKennel. Last updated by akitaken 18 Jan 2025.