About YAMAMOTO NAOYUKI
About 農業経営研究
About agricultural management
About dairy farming
About milking machine
About industrial robot
About cost-effectiveness analysis
About automation
About cattle
About working hour
About milking robot
About feeding management
About cost effectiveness analysis
About dairy farming management
About Agricultural economy,agricultural management
About Cattle
About 酪農経営
About 搾乳ロボット
About 施設
About 費用対効果分析