Hokkaido University Collection of Scholarly and Academic Papers >
Field Science Center for Northern Biosphere >
北海道大学農場研究報告 = Research bulletin of the University Farm Hokkaido University >
第二號 >
北海道ニ於ケル Holstein Friesian 品種ノ分娩季並ビニ母體ノ受胎ニヨリ其泌乳量ニ及ボス影響ニ就テ
|