Dai 20 Hirashige J287 is an important sire of the Kedaka line, which was formed in the Tottori Prefecture from descendants of the sire Kedaka born in 1959. The Kedaka/Tottori strain of Wagyu has the genetic potential for higher growth rates combined with high meat quality, as well as good conformation, temperament, and fertility. Kedaka bulls are known for their fine hair and loose skin.

Dai 20 Hirashige J287’s semen is still used in Japan, although in scant quantity, and the price per straw is well in excess of $1,000. He was awarded the highest honor in Japan of Ikushu-Toroku.