About YAMASHITA TETSUO
About hog raising
About capital investment
About agricultural management
About business management
About habitat environment
About standard
About disease resistance
About management
About outsourcing
About 地域標準
About 衛生環境
About Small Business
About 放牧養豚
About commitment
About Swine(=pigs)
About Agricultural economy,agricultural management
About 世界
About 標準
About 地域