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Nagasaki Tsushima Jidori

長崎対馬地どり Nagasaki

English name: Nagasaki Tsushima Jidori — no official English name found, so romanised by this site.

Requirements for Nagasaki Tsushima Jidori: breed — Tsushima Jidori cross; rearing period — reared for at least 90 days; housing — stocking density “5–8/m² or fewer” (as written in the source). Not specified: where raised.

Definition — what qualifies

Breed

Tsushima Jidori cross

A two-way cross of a Ryu Shamo Goro sire line with a Tsushima Jidori dam line (prefecture); at least 75% native-breed blood (council)

Sources: [D021] [D022]

Where it must be raised

Not set (no such requirement in the source)

Rearing period / age at shipment

Reared for at least 90 days

Sources: [D022]

How it is housed

Stocking density “5–8/m² or fewer” (as written in the source)

Sources: [D022]

Other conditions

Not set (no such requirement in the source)

Japan's JAS standard for jidori sets four conditions: the chicks, the rearing period, the housing and the stocking density. A brand's own conditions can be stricter, or set differently. The JAS standard for jidori →

Native breeds named in this brand's cross: Tsushima Jidori (All 38 native breeds)

The prefecture's “males reach about 3.3 kg at around 90 days, females about 2.8 kg at around 130 days” describes growth; the condition is the council's “at least 90 days”. The council gives density as a range (“5–8/m² or fewer”) without saying which applies at what age or sex. Housing method, feed and rearing area are not stated. The “Tsushima Jidori” described by the prefecture's agricultural research center (Red Cornish sire × Tsushima Jidori dam) is a different bird with a different cross.

Compared with other brands

21 chicken brands set a minimum rearing period, from 75 to 150 days. 90 days ranks 12th from the longest (1 other also uses 90).

This guide lists 2 brands from Nagasaki (also Nagasaki Wagyu). By prefecture →

Compare this brand side by side with others → ・ Find brands by their rules →

Counts cover only the brands in this guide.

Managed by

Managed by
Nagasaki Tsushima Jidori Promotion Council
Official site
https://nagasaki-tsushima-jidori.com/

Other brands from Nagasaki

Nagasaki →

About the names

Brand names are proper nouns. English names follow the brand association's official English page first, then the English name in the GI register, and otherwise romanised Japanese plus "Beef", "Wagyu" or "Pork". We never call a non-Wagyu brand Wagyu.

Sources

Sources are in Japanese

  1. [D021] 長崎対馬地どり — Nagasaki Prefecture ・ Primary source ・ Accessed 2026-09-28
  2. [D022] 長崎対馬地どり(振興協議会) — Nagasaki Tsushima Jidori Promotion Council ・ Primary source ・ Accessed 2026-09-28
  3. [D023] 新銘柄鶏「つしま地どり」 — Nagasaki Agriculture and Forestry Technical Development Center ・ Primary source ・ Accessed 2026-09-28