From healthy pigs comes healthy meat. A Joshu brand pork born of scientific feed design and careful breed selection — the pride of the region.
Hatsuratsuton (Vigorous Pork) is a brand pork produced by the ‘Hatsuratsuton Research Group’ in Gunma Prefecture, certified as one of the Joshu Brand Porks. Joshu Brand Pork is a pork brand certification system uniquely established by Gunma Prefecture — Hatsuratsuton is known as a high-quality pork representing Gunma that meets its strict standards. What this brand most values is the consistent principle of ‘healthy meat from healthy pigs.’ From the early stages of rearing, prophylactic antibiotics are completely excluded without exception, and rearing that draws out the pigs’ inherent immune system and vitality to the maximum is practiced. The dedicated feed is richly blended with seaweed powder, sweet potato, garlic, and Vitamin E — with a proprietary feed design that scientifically emphasizes the balance of unsaturated fatty acids. Through this feed ingenuity, a high-quality fat of low melting point that melts cleanly when it enters the mouth is produced. Furthermore, the Hatsuratsuton Research Group carries through rigorous selection of breeding pigs from the breeding stage itself. A continuing commitment to meat quality at the bloodline level, ensuring quality uniformity and high reproducibility — this is a major strength of this brand. The meat quality that this accumulated effort produces is characterized by high-quality fat with a pleasant melt-in-the-mouth feel, and a soft, umami-rich lean. The fat is white and beautiful — the characteristic pork off-odor rarely appears even with heat, so the authentic flavor of pork stands out in any preparation. In tonkatsu, the unity with the coating is outstanding, with juicy meat juices spreading in the mouth even after frying. In shabu-shabu, the premium fat melts into the dashi broth, and the authentic sweetness and umami of the pork can be savored to the fullest. Available at specialty meat retailers and supermarkets within Gunma Prefecture — a specialty with the freshness unique to the production area.
Basic Information
- Name
Hatsuratsuton - Production Area
Designated farms in Gunma Prefecture - Management Body
N/A - Breed / Crossbreeding
Three-breed cross (details undisclosed) - Meat Characteristics
Low-melting, melt-in-the-mouth fat; umami-rich and tender lean meat; superior unsaturated fatty acid balance. - Feed Characteristics
No preventive antibiotics. Proprietary feed enriched with seaweed powder, sweet potato, garlic, and vitamin E. Scientifically designed unsaturated fatty acid balance. - Shipping Age
N/A - Annual Production
Limited to Gunma Prefecture (butcher shops, supermarkets, etc.) - Signature Dish
N/A - Certifications
Joshu Brand Pork certified. Prophylactic antibiotic-free; rigorous breed selection from the breeding pig stage. - Related URLs
Gunma Meat Quality Council (Hatsuratsuton) - Source
Branded Pork Guidebook 2026, p.83
ぐんまポーク（群馬県農業情報センター）
群馬県食肉品質向上対策協議会
Last updated
6/21/2026