About YAMASHITA ATSUSHI
About 角力灘動物病院
About 日本獣医史学雑誌
About Japan
About dairy farming
About agricultural management
About science history
About productivity enhancement
About output(production)
About feed(fodder)
About rearing management
About dairy cattle
About agricultural history
About Agriculture,forestry and fisheries in general
About Cattle
About Rearing management
About 日本
About 酪農