Mamiya's Blue Ivy

Registration n° NP617183/01

Breeder & owner: Cheryl Mamiya
Sire: San Jo Jay-Z
Dam: San Jo Love Me Tender
Gender: Female
Date of birth: 19 April 2020
Country of birth & standing: USA

Genetic indicators

COI — inbreeding

6.84%

Moderate. Common ancestors: Kurochiyoda Go Shun'you Kensha, Tenkuu Go Etchuu Wakasugisou, Banshou Go Ryuukyuu Uruma (Manshou).

AVK — distinct ancestors

83.9%

52 distinct ancestors out of 62 possible.

Pedigree completeness

100%

Complete pedigree over 5 generations.

Value for the breed's diversity

Very common pedigree — rarer than 14% of the Shiba born in the last 15 years (since 2012)

How often its ancestors (over 6 generations) appear in the pedigrees of the 11,571 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
Kurochiyoda Go Shun'you Kensha ♀	gen. 2	gen. 3	6.25%
Tenkuu Go Etchuu Wakasugisou ♂	gen. 4	gen. 5	0.39%
Banshou Go Ryuukyuu Uruma (Manshou) ♂	gen. 5	gen. 5	0.2%
COI over 5 generations			6.84%

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

Multi BISS Am ChSan Jo Jay-Z ♂NP29152501Black and Tan · 2011

USA

San Jo Kuma Yama ♂NP18789401Black and Tan · 2007

USA

CHSan Jo Razin A Rukus ♂NP05700001Sesame · 2003

USA

San Jo Kumi Nikita ♀AKC NP03441401Red · 2003

USA

Am ChKurochiyoda Go Shun'you Kensha ♀NP28680201Black and Tan · 2010

Spain

Portugal & Montenegro ChampionKurotama Go Gold Typhoon Jr Jp ♂黒玉号富ノ守禮LOE 1869849, JKS JS-02179/09-0, NIPPO H21-16249Black and Tan · 2008

Japan

Spain ChampionAso No Kuroka Go Takayuusou ♀阿蘇の黒香号高遊荘LOE 1613415, NIPPO H17-33012Black and Tan · 2005

Japan

Am. Ch.San Jo Love Me Tender ♀NP43102903Red · 2016

USA

BISS Am ChTenkai Go Ryuukyu Uruma ♂JKC JS 659/06, AKC NP14885901Red · 2004

Japan

N S FIN NORD UCH NW-07 NORDW-07 NIPPO 100 Grand National - 2-nd place in classHachiman Go Ryuukyuu Uruma ♂八萬号　琉球うるまJKCJS12987/02 NIPPO 15-10266Red · 2002

Japan

Shinkai No Tomime Go Nidai Maneisou ♀NIPPO 15-8280, JKC JS-04353/07-0Red · 2003

San Jo Stella ♀NP382609012014

USA

CH.San Jo True Grit ♂AKC NP33189402Red · 2012

USA

Am ChKurochiyoda Go Shun'you Kensha ♀NP28680201Black and Tan · 2010

Spain

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

Kurochiyoda Go Shun'you Kensha ×2

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Generations Photos

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