The pride of Tottori Prefecture — a rare and precious brand pork that carries the finest bloodlines of both black and red pig breeds.
Daisen Ruby is an original Tottori Prefecture brand pork — the Daisen Red Pig (Duroc breed) female developed by Tottori Prefecture Small Livestock Experiment Station crossed with a Black Pig (Berkshire) male. Characterized by a beautiful lean reminiscent of the gemstone ruby — as the name suggests — trademark registered in 2011. Raised with devoted management in a hygienic farm surrounded by the rich nature of Daisen — from piglets born from healthy parent pigs. A rare pork handled only by limited producers within the prefecture — annual shipments remain at approximately 800 head. It inherits both the richly flavored umami of the Daisen Red Pig — richly containing oleic acid — and the deliciousness and softness of the meat quality unique to Berkshire. The finely-grained fat brings a gentle sweetness — the fat does not easily become cloying even with heat, and the ability to directly feel the authentic umami of the ingredient is the appeal. The deliciousness can be savored in a wide range of preparations including roast pork, shabu-shabu, and ginger pork stir-fry. Locally in Tottori, retailers are also in place — also popular as a travel souvenir or gift for important people. With few producers, devoted management is applied to each individual — the commitment to quality is felt in every aspect. This brand — managed by Tottori Prefecture Brand Pork Promotion Association — is distributed primarily through Tottori Prefecture Meat Center. Please do savor at least once this rare brand pork nurtured at the foot of Daisen.
Basic Information
- Name
Daisen Ruby - Production Area
Designated farms in Tottori Prefecture - Management Body
Tottori Prefecture Brand Pork Promotion Association - Breed / Crossbreeding
Female: Duroc (Daisen Red strain) × Male: Berkshire - Meat Characteristics
Rich in oleic acid with a pronounced umami. Finely-grained meat quality with a naturally sweet fat. A premium pork whose fat stays clean and light even when cooked — never heavy. - Feed Characteristics
Hygienically managed farm with safe, trusted feed for careful rearing. - Shipping Age
N/A - Annual Production
Approx. 800 head annually - Signature Dish
N/A - Certifications
Trademark registration: January 7, 2011 - Related URLs
Daisen Ruby (RB) / Tori-Net (Tottori Prefecture Official Site) - Source
Branded Pork Guidebook 2026, p.158
Daisen Ruby (RB) / Tori-Net (Tottori Prefecture Official Site)
Last updated
6/21/2026