| Name |
Oyama Hirokazu |
| Location |
Sera-gun, Hiroshima |
| Varieties |
Showa, Kohaku, Sanke, Goshiki |
| Bloodline |
Predominately Dainichi, Sakai, Takeda |
| Comments |
Breeding for twenty years, is well known for his Showa but has a passion for Sanke |
| Koi show achievements |
2009 saw Oyama koi farm take two kokugyo awards and Baby Champ at the Wakagoi show. |
