# Shiba Inu (柴犬) Nihon Ken — Shiba Inu. Breed health: 7,592 dogs, 1,922 founders, gene diversity 99.82%. 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:** 99.82% - **Mean kinship:** 0.18% · 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 (2,900 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 — 3.19% (26 dogs) 1988 — 3.57% (24 dogs) 1989 — 3.11% (36 dogs) 1990 — 4.57% (45 dogs) 1991 — 3.11% (42 dogs) 1992 — 2.77% (59 dogs) 1993 — 2.67% (61 dogs) 1994 — 3.59% (76 dogs) 1995 — 2.67% (59 dogs) 1996 — 2.90% (62 dogs) 1997 — 2.02% (75 dogs) 1998 — 2.32% (56 dogs) 1999 — 3.02% (61 dogs) 2000 — 3.48% (57 dogs) 2001 — 2.48% (52 dogs) 2002 — 3.56% (58 dogs) 2003 — 1.65% (86 dogs) 2004 — 2.26% (56 dogs) 2005 — 1.74% (70 dogs) 2006 — 2.20% (72 dogs) 2007 — 2.33% (54 dogs) 2008 — 2.83% (70 dogs) 2009 — 3.55% (51 dogs) 2010 — 2.07% (70 dogs) 2011 — 2.39% (67 dogs) 2012 — 3.11% (73 dogs) 2013 — 4.23% (71 dogs) 2014 — 3.70% (72 dogs) 2015 — 4.46% (59 dogs) 2016 — 2.97% (67 dogs) 2017 — 2.49% (61 dogs) 2018 — 3.90% (61 dogs) 2019 — 3.48% (53 dogs) 2020 — 2.13% (53 dogs) 2021 — 1.96% (96 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) ## Top ancestors - **#1:** [Tenkuu Go Etchuu Wakasugisou · centrality 0.0005852076626443353](https://nihonken.org/pedigree/dogs/eb0756c2-3ec8-4449-921f-f8c9076298e1) - **#2:** [Kotetsu (Toratetsu) go Koutokusou · centrality 0.0005843676666195082](https://nihonken.org/pedigree/dogs/7fa3d83c-fd49-433f-970d-1aeb88be9484) - **#3:** [Naka Go Akashisou (Akaishisou) · centrality 0.0005676380511501976](https://nihonken.org/pedigree/dogs/6123f645-4bb6-4b00-ba88-e35b6869efd5) - **#4:** [Jouji Go Fussaen · centrality 0.0005148090055109246](https://nihonken.org/pedigree/dogs/694e6abf-ec9e-4eee-8497-00b786ac7e22) - **#5:** [Tekka No Gen Go Sanuki Mizumotosou · centrality 0.0005068474152643297](https://nihonken.org/pedigree/dogs/6b201fde-b140-4fcd-8a48-7799ed4d8be0) - **#6:** [Aoinishiki Go Sanuki Mizumotosou · centrality 0.0004984849857211394](https://nihonken.org/pedigree/dogs/76937b2b-27fe-4d10-bdbf-4b2b86a12f20) - **#7:** [Tetsugen Go Bichuueikansou · centrality 0.0004974701213029094](https://nihonken.org/pedigree/dogs/a823144d-3459-456f-8e45-1a9856e588c7) - **#8:** [Fukutenriki go Bingo Kashimasou · centrality 0.00047114711288190683](https://nihonken.org/pedigree/dogs/04d18b47-7d88-4914-93da-a40e63c0e11b) - **#9:** [Tenkou Go Jounensou · centrality 0.000468700755031653](https://nihonken.org/pedigree/dogs/739a2482-b0f4-4b43-b519-22e3cb75c882) - **#10:** [Toyonishiki Go Toyohashi Onoda · centrality 0.000458088032891512](https://nihonken.org/pedigree/dogs/e9b35d80-8675-4e67-9bcf-50d0dafa69bb) ## 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_