About FUKUJU NAOKI
About 農研機構 東北農業研究セ
About cattle
About roughage
About performance index
About time
About measuring instrument
About measurement accuracy
About animal behavior
About feeding behavior
About in situ observation
About 採食時間
About 反芻時間
About performance index
About Cattle
About Roughage
About ウシ
About 採食
About 反芻
About 把握