Raised slowly over 240 days with unwavering devotion — a pure Berkshire black pork from Gyoda, Saitama, like no other.
Koyanosanchi no Sakitama Kurobuta (Koyano’s Sakitama Black Pork) is a brand pork raised one by one with devoted care at a self-operated direct farm by Koyano Specialty Meat Shop Co., Ltd., rooted in Gyoda City, Saitama Prefecture. The greatest defining feature is that while standard pigs are shipped at approximately 6 months, these pigs are raised slowly to 240+ days of age and approximately 120 kg — maintaining the bloodline of pure Berkshire. This extended fattening finely refines the muscle fibers and concentrates a juicy, soft texture and rich umami. Berkshire is known as a breed rich in amino acids — the umami components — with high-quality fat and a sweet, non-gamey flavor enjoyable. Koyano Specialty Meat Shop uses the ‘Sakitama Kurobuta Dedicated Compound Feed’ jointly developed with Nihon Nosan Kogyo. This dedicated feed draws out the flavor of the meat and the sweetness of the fat. Furthermore, a thoroughgoing rearing policy of not adding antibiotics to any feed at all is adopted — providing great confidence for consumers who prioritize food safety. Trademark registration and brand standards were established in May 2015, officially certified as a formal brand. A designated retailer system is also in place, with annual shipments limited to approximately 200 head — a brand of high rarity value. The representative dish is tonkatsu. Frying thick loin produces a crispy coating, moist and soft interior, and the unique umami of black pork spreading with every chew. Ginger pork stir-fry and shabu-shabu also accentuate the distinctive sweetness and umami vividly. At Koyano Specialty Meat Shop, fresh-fried croquettes and other store-prepared side dishes are also available for easy tasting. Please do savor the flavor of this committed black pork from Saitama at least once.
Basic Information
- Name
Koyanosanchi no Sakitama Kurobuta - Production Area
Designated farms in Saitama Prefecture - Management Body
N/A - Breed / Crossbreeding
Berkshire (purebred) - Meat Characteristics
Pure Berkshire raised 240+ days to approx. 120 kg. Fine-grained, juicy, and tender with rich umami. Sweet fat with a clean, mild flavor. - Feed Characteristics
Co-developed ‘Sakitama Kurobuta Proprietary Feed’ with Nippon Nosan Kogyo. Zero antibiotic additives in all feed throughout the entire raising period. - Shipping Age
240+ days - Annual Production
Approx. 200 head annually (primary wholesaler: Koyano Butcher). Designated retailer program in place. - Signature Dish
N/A - Certifications
Trademark registration: May 22, 2015
Brand regulations established: May 22, 2015
Antibiotic-free management throughout all feed
Quality control through designated retailer program - Related URLs
Koyano Butcher Shop Official Site - Source
Branded Pork Guidebook 2026, p.87
小谷野精肉店 公式サイト
行田市地域情報サイト
Last updated
6/21/2026