Born of a commitment to plant-based feed — Saitama’s proud brand pork, rich in umami and refreshingly clean in finish.
Bushu-ton is a Japanese brand pork (meigara-buta) from Yorii Town, Osato District, Saitama Prefecture, managed by Sakamoto Farm. Breed / crossbreeding: Three-breed cross (LWD): Female (Landrace × Large White) × Male Duroc.
Bushu-ton (Musashi Province Pork), raised by Sakamoto Farm in Yorii Town, Osato District, Saitama Prefecture, is a brand pork appealing for its umami and clean, refreshing finish. Trademarked under ‘Bushu-ton’ for fresh cuts and ‘Warzwein’ for processed products, the trademark was obtained on June 17, 2011.
At Sakamoto Farm, the small-scale operation of 200 sows is leveraged to provide devoted, individual care to each animal. Air conditioning is installed in the barns year-round to maintain a comfortable environment for breeding boars. Feed amounts are adjusted per sow, with back fat inspections carried out for thorough health management. At the time of piglet birth, careful supervision of colostrum intake ensures the rearing of healthy pigs.
The feed adopts an original blend of plant-based feed centered on whole-kernel corn, combined with charcoal, rice, and eco-feed. The commitment to plant-based ingredients produces the clean, refined flavor and the never-tiring lean umami unique to Bushu-ton. The breed is an LWD three-breed cross — Landrace female × Large White male crossed with Duroc male — shipping age 180 days, shipping weight 115 kg.
Annual shipments are approximately 4,000 head, distributed through Seiken Shoji. Pairs well with a wide range of preparations including tonkatsu and shabu-shabu that draw out the refreshing lean umami, and ginger pork stir-fry where the sweetness of the fat stands out. Sausage made from the farm’s own Bushu-ton won a gold medal at the German International Contest — its quality is recognized internationally as well.
Basic Information
- Name
Bushu-ton - Production Area
Yorii Town, Osato District, Saitama Prefecture - Management Body
Sakamoto Farm - Breed / Crossbreeding
Three-breed cross (LWD): Female (Landrace x Large White) x Male Duroc - Meat Characteristics
Rich in umami with a clean aftertaste. Little off-odor, with enjoyable sweetness in the fat. Fresh cuts are sold under the ‘Bushu-ton’ brand and processed products under ‘Warzwein’ - Feed Characteristics
Original blend of plant-based feed with whole-kernel corn as the main ingredient, combined with charcoal, rice, and eco-feed - Shipping Age
180 days - Annual Production
Approx. 4,000 head annually (wholesaler: Seiken Shoji; primary slaughterhouse: Kenboku Meat Center) - Signature Dish
Tonkatsu, shabu-shabu, ginger pork, sausages and processed products - Certifications
Farm HACCP: none / Trademark registered: June 17, 2011 / Gold medal at the IFFA international contest, Germany (2016 and 2019) - Related URLs
Sakamoto Farm / Warzwein Official Site
Buta Trace Pig Traceability System – Farm Detail - Source
Branded Pork Guidebook 2026, p.93
Sakamoto Farm / Warzwein Official Site
Buta Trace Pig Traceability System
Related brand pork
Last updated
6/21/2026
