Food · Fermented foods
Ukokkei-tamago (Silkie Chicken Egg)
うこっけい卵 (Ukokkei-tamago)
Also known as: Ukokkei-tamago, Silkie chicken egg, Black-bone chicken egg, Gallus gallus 'Silkie', 烏骨鶏卵
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| Category | Food |
|---|---|
| Japanese labeling name | うこっけい卵 全卵 生 |
| Common Japanese notations | うこっけい卵, 烏骨鶏卵, ウコッケイタマゴ |
| Origin | Silkie chicken egg (Gallus gallus 'Silkie' breed); the breed is the same as Chinese 'wuji' / black-bone chicken; principal modern Japanese silkie egg producers include various small-scale farms; ultra-premium retail positioning |
| Typical functions | Premium gift retail — single eggs sold at ¥300-¥800 per egg, Functional/health positioning |
| Regulatory status in Japan | Standard food labeling. **Egg is JAS-mandatory allergen.** Silkie breed disclosure. Not a regulated functional category — health claims require FFC if explicit. |
Ukokkei-tamago (うこっけい卵 / 烏骨鶏卵) is silkie chicken egg, ultra-premium specialty egg with retail pricing of ¥300-¥800 per egg. **Egg is JAS-mandatory allergen.**
Classification
Tags below link to other ingredients sharing the same attribute, so you can pivot from one ingredient to its peers.
Product applications
Functions
Regulatory tags
Origin
Used in (typical product categories)
Finished-product categories that commonly include this ingredient in Japanese-market formulations.
- Premium silkie egg gift retail
What it is
Silkie chicken (Gallus gallus 'Silkie' breed) egg.
Typical uses in Japanese products
Premium gift retail.
Functional/health positioning.
For OEM: ultra-premium gift retail OEM.
Regulatory classification in Japan
Standard food labeling. **Egg is JAS-mandatory allergen.** Silkie disclosure.
Regulatory classification in other markets
| EU | Niche premium specialty. Egg allergen mandatory. |
|---|---|
| USA | Niche premium specialty. Egg allergen mandatory. |
| China | Established Chinese wuji egg market. |
| Korea | Niche specialty positioning. |
Example products
Example finished products will be added after verification.
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Sharing similar functions
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From the same origin
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References
- MEXT Standard Tables of Food Composition — うこっけい卵 全卵 生
Last updated: 2026-04-28. Ingredient entries are reviewed at least annually against current regulatory listings.