# Shiba Inu (柴犬)

Nihon Ken — Shiba Inu. Breed health: 7,592 dogs, 1,922 founders, gene diversity 99.81%.

See all Shiba Inu: https://nihonken.org/pedigree/browse?breed=shiba&format=md

## Overview
A free population-genetics overview across the 7,592 Shiba Inu in the database — gene diversity, inbreeding over time, and the ancestors shaping the lines. Every figure is a floor on incomplete pedigrees: true values may be higher.

## Genetic diversity
- **Dogs:** 7,592
- **Founders:** 1,922
- **Gene diversity:** 99.81%
- **Mean kinship:** 0.19% · sampled estimate
- **Effective population (Ne):** Not estimable — Mean inbreeding is not rising in the data (ΔF ≤ 0), so Ne is not estimable. Pedigree-based estimate from the rate of inbreeding, not a census Ne; a floor given incomplete pedigrees.

## Inbreeding over time
Mean cached COI per birth-year cohort (3,181 dogs with a computed COI). Population means, not individual COIs.

1953 — 42.19% (1 dogs)
1964 — 20.34% (1 dogs)
1969 — 12.82% (2 dogs)
1970 — 40.62% (1 dogs)
1972 — 3.48% (1 dogs)
1973 — 12.50% (1 dogs)
1975 — 6.74% (1 dogs)
1976 — 30.34% (1 dogs)
1977 — 13.67% (1 dogs)
1979 — 4.81% (1 dogs)
1980 — 0.27% (2 dogs)
1981 — 1.67% (5 dogs)
1982 — 7.86% (6 dogs)
1983 — 13.49% (2 dogs)
1984 — 4.05% (13 dogs)
1985 — 1.62% (17 dogs)
1986 — 3.48% (21 dogs)
1987 — 3.07% (27 dogs)
1988 — 3.43% (25 dogs)
1989 — 2.94% (38 dogs)
1990 — 4.57% (45 dogs)
1991 — 3.11% (42 dogs)
1992 — 2.77% (59 dogs)
1993 — 2.62% (62 dogs)
1994 — 3.59% (76 dogs)
1995 — 2.58% (61 dogs)
1996 — 2.85% (63 dogs)
1997 — 1.99% (76 dogs)
1998 — 2.24% (58 dogs)
1999 — 3.02% (61 dogs)
2000 — 3.31% (60 dogs)
2001 — 2.26% (57 dogs)
2002 — 3.28% (63 dogs)
2003 — 1.61% (88 dogs)
2004 — 2.18% (58 dogs)
2005 — 1.69% (72 dogs)
2006 — 2.00% (79 dogs)
2007 — 2.29% (55 dogs)
2008 — 2.68% (74 dogs)
2009 — 3.35% (54 dogs)
2010 — 1.93% (75 dogs)
2011 — 2.19% (73 dogs)
2012 — 2.87% (79 dogs)
2013 — 3.85% (78 dogs)
2014 — 3.60% (74 dogs)
2015 — 4.18% (63 dogs)
2016 — 2.69% (74 dogs)
2017 — 2.37% (64 dogs)
2018 — 3.83% (62 dogs)
2019 — 3.41% (54 dogs)
2020 — 2.13% (53 dogs)
2021 — 1.92% (98 dogs)
2022 — 2.67% (70 dogs)
2023 — 2.59% (38 dogs)
2024 — 2.09% (62 dogs)
2025 — 2.64% (39 dogs)
2026 — 1.15% (12 dogs)

## Most influential dogs
Effective number of ancestors: 152.8. The modern Shiba Inu gene pool is as concentrated as if 152.8 equally used dogs had produced it. Ranked by each dog's own contribution to the 1,218 Shiba Inu born since 2011 with a recorded pedigree (as of 2026-10-11): the part of the modern gene pool that passes through that dog and through no dog ranked above it. The top 20 account for 27.6% of it. A dog's reach, the share of pedigrees it appears in, is a minimum: a pedigree that stops early can hide descent, never invent it. Own contributions and the effective number of ancestors are estimates from the recorded pedigrees, and can move either way as more ancestry is recorded.
- **#1:** [Tenkuu Go Etchuu Wakasugisou (2000) · own contribution 2.6% · in 30.4% of pedigrees](https://nihonken.org/pedigree/dogs/eb0756c2-3ec8-4449-921f-f8c9076298e1)
- **#2:** [Fukutenriki go Bingo Kashimasou (2011) · own contribution 2.6% · in 19.4% of pedigrees](https://nihonken.org/pedigree/dogs/04d18b47-7d88-4914-93da-a40e63c0e11b)
- **#3:** [Benioumaru Go Fukuyama Hijiri (2011) · own contribution 1.8% · in 19.1% of pedigrees](https://nihonken.org/pedigree/dogs/fca66444-5e99-495e-b1cd-f52199775eaf)
- **#4:** [Jack Sparrow de l'Empire des Samouraïs (2014) · own contribution 1.8% · in 7.4% of pedigrees](https://nihonken.org/pedigree/dogs/bd08b378-f86b-4885-b943-cdea5836bbb4)
- **#5:** [Toyo No Kuroichi Go Hikino Kourakusou (2011) · own contribution 1.6% · in 15.2% of pedigrees](https://nihonken.org/pedigree/dogs/4ffacbb9-08c1-4917-85a6-005417048fd2)
- **#6:** [Tekka No Gen Go Sanuki Mizumotosou · own contribution 1.5% · in 87.4% of pedigrees](https://nihonken.org/pedigree/dogs/6b201fde-b140-4fcd-8a48-7799ed4d8be0)
- **#7:** [Banshou go Ryuukyuu Uruma (2000) · own contribution 1.4% · in 30.6% of pedigrees](https://nihonken.org/pedigree/dogs/27a16b42-dbb0-42fe-babb-a4cb40ef40e3)
- **#8:** [Aoinishiki Go Sanuki Mizumotosou · own contribution 1.4% · in 58.5% of pedigrees](https://nihonken.org/pedigree/dogs/76937b2b-27fe-4d10-bdbf-4b2b86a12f20)
- **#9:** [Shizuku Go Yamato Shinzansou (2002) · own contribution 1.3% · in 16.7% of pedigrees](https://nihonken.org/pedigree/dogs/e40a9e2e-b500-4655-a922-e2588fa57d6e)
- **#10:** [Koujinryuu Go Tosa Kuroshio Sou (2007) · own contribution 1.2% · in 14.7% of pedigrees](https://nihonken.org/pedigree/dogs/c09c6ac0-f088-40d9-a7a5-eb4a8662f28e)
- **#11:** [Gyokuryuu (Tamaryu) Go Ryuukyuu Uruma (1994) · own contribution 1.2% · in 29.8% of pedigrees](https://nihonken.org/pedigree/dogs/104d93fb-a7d5-43fa-b11c-f18c3fcaeba9)
- **#12:** [Kyouryuuou Go Noto Heiseian (2005) · own contribution 1.2% · in 12.2% of pedigrees](https://nihonken.org/pedigree/dogs/ebd9a3f4-8e1a-4486-bbf4-71a61ab62cfd)
- **#13:** [Hirose No Shougun Go Enshuu Hirosesou (2006) · own contribution 1.2% · in 12.6% of pedigrees](https://nihonken.org/pedigree/dogs/6dc8290a-522b-43e5-9b4b-611212b8bfc6)
- **#14:** [Nananishiki Go Saku Asukaen (2008) · own contribution 1.1% · in 7.5% of pedigrees](https://nihonken.org/pedigree/dogs/a56313fb-f5ab-497f-86f3-8c31bb7bdb03)
- **#15:** [Aso No Ryuuou Go Takayuusou (2004) · own contribution 1.1% · in 18.4% of pedigrees](https://nihonken.org/pedigree/dogs/52519728-e34b-48f6-a1e8-5766b25295c0)
- **#16:** [Gomaryuu Go Sapporo Kagasou (2014) · own contribution 1.1% · in 7.7% of pedigrees](https://nihonken.org/pedigree/dogs/c5a5cc88-d791-4f59-af90-8042a6a6f4db)
- **#17:** [Toyonishiki Go Toyohashi Onoda (1990) · own contribution 0.99% · in 75.8% of pedigrees](https://nihonken.org/pedigree/dogs/e9b35d80-8675-4e67-9bcf-50d0dafa69bb)
- **#18:** [Kazakoshi no Koryuu go Yokohama Atsumi (2006) · own contribution 0.89% · in 14.9% of pedigrees](https://nihonken.org/pedigree/dogs/04c8ceb4-52fa-4cef-8dda-fda771f14d52)
- **#19:** [Kurotama Go Gold Typhoon Jr JP (2008) · own contribution 0.88% · in 12.7% of pedigrees](https://nihonken.org/pedigree/dogs/0d0a2c7f-dadb-4517-a1e1-a60fadc865d2)
- **#20:** [Wakanami No Kurome Go Wakanamisou · own contribution 0.86% · in 19.1% of pedigrees](https://nihonken.org/pedigree/dogs/8ffebe77-669b-469c-bd41-1bac26ff72af)

## Dogs
- **Aikyou No Houshin Go Aikyousou:** [](https://nihonken.org/pedigree/dogs/b69fc976-7ab8-4060-b7d1-290777a78a97)
- **Aizu No Warabehime Go Aizu Joushousou 会津の童姫号 会津常勝荘:** [NIPPO H24-2105](https://nihonken.org/pedigree/dogs/906ee5bb-663a-466c-aa46-d79572498d0d)
- **Azusahime Go Sanuki Mizumotosou 梓姫号 讃岐水本荘:** [NIPPO 14-16861](https://nihonken.org/pedigree/dogs/eb653245-7841-4bcd-839f-a36039d37b2b)
- **Banryu Go Enshu Akinagasow:** [NIPPO 3-13524](https://nihonken.org/pedigree/dogs/2ffce6fc-3210-4f57-bf02-ec242a87812d)
- **Benitakahime Go Hyougo Maruyamasou 紅貴姫号 兵庫丸山荘:** [](https://nihonken.org/pedigree/dogs/db7465a8-2556-452f-9b8f-8c70aeab6b0b)
- **Copperdot's Designer Label @ The Oaks:** [](https://nihonken.org/pedigree/dogs/2590415b-a2b6-490a-bf63-58f60554c485)
- **D'Kurohana Mika Zatoka Snu:** [](https://nihonken.org/pedigree/dogs/50850cee-9bed-4910-a209-2ee561363e2f)
- **Daikokunishiki Go Ibi Kasukawasou:** [NIPPO 5-7002](https://nihonken.org/pedigree/dogs/2342fc25-8dc6-4a86-a730-a9a058cd4402)
- **Daruma No Kurohana Go Iwakuni Darumasou:** [](https://nihonken.org/pedigree/dogs/f39002f6-eb3c-4afb-a1aa-4fab62722698)
- **Eiki Kamiwaza:** [](https://nihonken.org/pedigree/dogs/78f74a7f-a4fd-4734-8bd1-8b16bce2e27f)
- **Fukume Go Enshuu Hirosesou:** [](https://nihonken.org/pedigree/dogs/98a2fa88-4a3a-4f40-8421-5f9b4593c147)
- **Gen Go Okayama Minami 〇号 岡山南:** [NIPPO 13-20969](https://nihonken.org/pedigree/dogs/a16541f1-5a19-4c7f-8027-f4e4620252eb)
- **Gentarou Go Shinshuu Yamaya Kensha:** [NIPPO H17-25888](https://nihonken.org/pedigree/dogs/98386060-534f-4292-a2dd-b3aafbecdb44)
- **Ginzakura Of Chiba Yoshizensow:** [AKC 0251471101](https://nihonken.org/pedigree/dogs/f265bbf6-7d16-43cb-8188-e8348aa52bd3)
- **Hama Go (Yamanashi Origin) 浜号（山梨産）:** [](https://nihonken.org/pedigree/dogs/d965c536-107d-4070-b745-5a0690cb08ba)
- **Handzimemesite Brilliant:** [](https://nihonken.org/pedigree/dogs/da6580a4-f384-4254-9c9c-af3cb6da9592)
- **Hitachi No Fukume Go Hitachi Hakuyosow:** [AKC NM85951601](https://nihonken.org/pedigree/dogs/722efa7a-99b2-4b01-b2b7-b94c57a3bd61)
- **Honto-No Enzeru:** [](https://nihonken.org/pedigree/dogs/fb447210-1eb0-4ecf-898d-63fa77bb1c30)
- **Jakunishiki Go Honjou Arakisow:** [NIPPO 10-19449](https://nihonken.org/pedigree/dogs/bf6918a4-9676-4c77-8a42-e123f0ae7824)
- **Jin Go Shimousa Hosodasou 神号 下総細田荘:** [AKC 0269288301](https://nihonken.org/pedigree/dogs/421f978c-6530-42f2-9deb-e75844c13135)
- **Jinki/Kamikame No Kouryuu Go Kurashiki Jinkisou/Kamikamesou:** [](https://nihonken.org/pedigree/dogs/3780ac6e-569c-4f26-8631-2f8cd6dcb85c)
- **Kabuki Didi Giorgi:** [](https://nihonken.org/pedigree/dogs/b99384c7-e057-4b54-ae23-224d4aa58693)
- **Kaiten Go Koushuu Kiriminesou:** [NIPPO 13-2736](https://nihonken.org/pedigree/dogs/fb86bb00-cb7d-4999-b250-43c75d5b953f)
- **Kaminari Smollis-San:** [](https://nihonken.org/pedigree/dogs/d638fb45-8c22-4e2f-bf3d-28dd9bc7ad97)

---

**Navigate:** [Home](https://nihonken.org/pedigree/?format=md) · [Search](https://nihonken.org/pedigree/browse?format=md) · [Litters](https://nihonken.org/pedigree/litters?format=md) · [Breeders](https://nihonken.org/pedigree/breeders?format=md) · [LLM guide](https://nihonken.org/pedigree/llms.txt)

_Search by name: https://nihonken.org/pedigree/browse?q=NAME&format=md_