Rooted in the land of Aomori — a richly flavored brand pork born from natural circular farming.
Hasegawa no Shizen Jukusei Ton is a Japanese brand pork (meigara-buta) from Ajigasawa Town, Nishitsugaru District, Aomori Prefecture, managed by Hasegawa Natural Farm Co., Ltd. Breed / crossbreeding: Female (Landrace Female × Large White Male) × Male Duroc.
Hasegawa no Shizen Jukusei Ton (Hasegawa’s Naturally Matured Pork) is a highly individual brand pork produced by Hasegawa Natural Farm Co., Ltd. based in Ajigasawa Town, Nishitsugaru District, Aomori Prefecture — born of natural circular agriculture deeply rooted in the Tsugaru land and a unique rearing philosophy. While pigs are typically shipped at around six months of age, this farm raises them slowly to 300 days of age (approximately 10 months). This extended rearing allows fine marbling to develop throughout the lean, accumulates sweetness and a rich, mellow fragrance in the fat, and produces a meat quality that delivers the full depth and umami of pork as it was traditionally known.
The feed is an in-house blend based on locally grown vegetables and potatoes raised without pesticides or chemical fertilizers, combined with breadcrumbs from local factories and rice bran — with fermentation bacteria, charcoal, and wood vinegar added in an original formulation. The barns are spread with carbonized rice husk to maintain a clean rearing environment, and no hormones or antibiotics are used whatsoever. Pig manure is returned as compost to grow vegetables and pasture grass, whose produce is then fed back to the pigs — a natural cycle practiced throughout the entire farm. Farm staff even speak to the pigs each morning as a measure to reduce stress, and pigs raised at ease in this calm environment yield a rich meat quality.
In simple preparations such as ginger pork stir-fry, the inherent umami of the ingredient and the sweetness of the fat can be savored to the full. The sincere pursuit of food safety and reliability at Hasegawa Natural Farm has attracted attention as a model for regional agriculture, earning deep trust from many consumers.
Basic Information
- Name
Hasegawa no Shizen Jukusei Ton - Production Area
Ajigasawa Town, Nishitsugaru District, Aomori Prefecture - Management Body
Hasegawa Natural Farm Co., Ltd. - Breed / Crossbreeding
Female (Landrace Female × Large White Male) × Male Duroc - Meat Characteristics
Long-term rearing to 300 days develops fine marbling in the lean and stores sweetness and a rich aroma in the fat. A rich meat quality characterized by traditional richness and deep umami - Feed Characteristics
In-house blended feed based on local vegetables, potatoes, bread crumbs, and rice bran, with fermentation bacteria, charcoal, and wood vinegar added in an original blend. No hormones or antibiotics - Shipping Age
300 days - Annual Production
800–960 head/year - Signature Dish
Ginger pork (shogayaki) - Certifications
Trademark registered (October 25, 2013)
Farm HACCP application pending - Related URLs
One Story Media – Hasegawa Natural Farm Feature
Hasegawa Natural Farm
Pork Tasting Set (Aomori Sanchi)
Marugoto Aomori – Farm Feature Article - Source
Branded Pork Guidebook 2026, p.30
One Story Media – Hasegawa Natural Farm Feature
Hasegawa Natural Farm
Pork Tasting Set (Aomori Sanchi)
Marugoto Aomori – Farm Feature Article
Related brand pork
Last updated
6/19/2026
