Wagyu bloodlines: Tajima, Fujiyoshi, Kedaka and the rest

For much of the 20th century Japanese Black cattle were bred mostly within their own prefecture. Each prefecture's cattle developed a recognizable type, and those bloodlines still describe Wagyu pedigrees today. Outside Japan, very few animals are pure to a single line — most modern Wagyu combine several — but knowing the lines helps you read a pedigree and balance your herd.

The descriptions below follow the Texas Wagyu Association's Wagyu Breeders Handbook. They are tendencies of each line, not guarantees for any individual animal; always check the animal's own breeding values.

Tajima (Hyogo Prefecture)

The Tajima (also Tajiri) line from Hyogo is the line most associated with very high marbling and meat quality. Tajima cattle tend to be smaller-framed with narrower hips and shoulders, and slower growing. Because of their marbling ability, high-Tajima bulls are widely used as terminal sires for F1 production. The handbook describes several sub-lines, including:

• Yasumi Doi — very high marbling and flavour; smaller animals. Exported bulls of this line include Michifuku, Yasufuku, Kikutsuru Doi, Fukutsuru 068 and Kitakikutsuru Doi.
• Kikuteru Doi — good marbling and meat colour, deep long bodies, good maternal traits and milk. Kitateruyasu Doi is from this line.
• Shigekanenami (Kumanami) — very good marbling with good growth and balanced structure. Itoshigenami is from this line.

Shimane and Okayama — Fujiyoshi and Shimomae

• Fujiyoshi (Shimane) — very good structure, length and depth; very good marbling; early maturing; fattens well; very fertile; cows produce adequate milk. Exported animals of this line include Itohana 2, Kenhanafuji, Itoshigefuji, Itozuru Doi and Itomoritaka.
• Shimomae — large frame with very good structure, length and depth, and good meat quality. Dai 6 Seizan is from this line.

Kedaka (Tottori Prefecture)

Large-framed cattle with moderate-to-late maturity, good temperament, fertility and calving ease, and adequate milk. Carcasses have good marbling that extends through to the rump but tend to have a smaller eye muscle. Exported bulls of this line include Hirashigetayasu and Shigefuku.

Japanese Brown (Red Wagyu / Akaushi)

A separate breed, raised mainly in Kumamoto and Kochi. It typically yields larger carcasses with firm texture and good marbling. See What is Wagyu?

Why balance matters

Breeders mix lines on purpose. A classic approach is to use a high-Tajima bull on larger-framed, more maternal Fujiyoshi or Kedaka cows: the calves get the marbling of the sire and the size, milk and fertility of the dam. Herds built only on small, slow-growing high-marbling lines can struggle with frame and maternal performance; herds built only on large lines can lose marbling.

Japanese breeders have long described a pedigree's make-up with a four-generation "16/16" analysis, which apportions the sixteen great-great-grandparents to their prefectural lines.

Because every Wagyu outside Japan descends from a small number of founders, the same famous bulls appear again and again in pedigrees. Watch inbreeding as well as bloodline when you choose sires.

To see the founding animals and their lines, visit the Foundation sires page on this site, where each animal's page shows its bloodline and its current offers.

Key takeaways

• Bloodlines come from prefectures where cattle were bred in isolation for generations.
• Tajima lines: highest marbling, smaller frame — classic F1 terminal sires.
• Fujiyoshi (Shimane) and Kedaka (Tottori): larger frame, maternal strength, good marbling.
• Most modern Wagyu are a blend; use breeding values and watch inbreeding.