A rich flavor nurtured by feed rice. A brand pork born of the Shinshu land, rich in oleic acid.
Shinshu Kome Buta is a Japanese brand pork (meigara-buta) from Nagano Prefecture, managed by Maruichi Sansho Co., Ltd. Breed / crossbreeding: Female (Landrace × Large White) × Duroc (three-breed cross).
Shinshu Kome Buta (Shinshu Rice Pork) is a brand pork nurtured by the rich nature of Nagano Prefecture. Its defining feature is a unique approach of finely grinding and giving feed rice (brown rice) during the fattening period to elevate the oleic acid value of the pork. Maruichi Sansho Co., Ltd., the managing body, produces stable pork under consistent quality management while maintaining close coordination with local livestock farmers.
In Shinshu Kome Buta production, brown rice harvested from local paddies is utilized as feed for the pigs — and the manure discharged from the pigs is processed into compost and returned to the paddy fields. This circular production system organically links the region’s agriculture and livestock — highly evaluated as an environmentally friendly initiative. Pork from pigs fed with feed rice has a high oleic acid value — producing a light, sweet fat quality and rich umami. The oleic acid value of the pork is carefully measured for each individual — quality uniformization is pursued.
The breed is a three-breed cross — Landrace × Large White sow crossed with Duroc male — with shipping at around 180 days of age and approximately 110 kg as the standard. Slaughtered at Hokushin Meat Center, approximately 10,000 head are distributed annually. Brand regulations established in 2012, trademark registered in 2013 — reliability and name recognition as a brand are also steadily established.
Drawing on the fine-quality fat and rich umami, it is suited to a wide range of preparations including shabu-shabu, yakiniku, and ginger pork stir-fry. Please do enjoy the clean finish and deep flavor unique to oleic acid-rich pork.
Basic Information
- Name
Shinshu Kome Buta - Production Area
Nagano Prefecture (farms within the prefecture) - Management Body
Maruichi Sansho Co., Ltd. - Breed / Crossbreeding
Female (Landrace × Large White) × Duroc (three-breed cross) / Shipping age: around 180 days / Shipping weight: around 110 kg - Meat Characteristics
High oleic acid value from feeding feed rice; characterized by light, sweet fat and rich umami - Feed Characteristics
Feed rice (brown rice) finely ground and fed during the fattening period. Circular production system adopted: rice paddy → feed rice → pig → compost → rice paddy - Shipping Age
Around 180 days - Annual Production
Approx. 10,000 head annually / Primary slaughterhouse: Hokushin Meat Center / Primary wholesaler: Maruichi Sansho - Signature Dish
Shabu-shabu, yakiniku, ginger pork, pork sauté - Certifications
Trademark registered: March 8, 2013 / Brand regulations established: June 2012 / Farm HACCP: none / JGAP: none - Related URLs
Maruichi Sansho Co., Ltd. (Official Site) - Source
Branded Pork Guidebook 2026, p.119
Maruichi Sansho Co., Ltd. (Official Site)
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Last updated
6/21/2026
