About TANAKA HIROFUMI
About 北海道留萌地区NOSAI
About ISHIJIKI SHINKICHI
About 北海道留萌地区NOSAI
About HASHIMOTO HISANORI
About 北海道留萌地区NOSAI
About YOKOYAMA IWAO
About 北海道雄信内農協
About YANABA SHIGEO
About 北海道雄信内農協
About SHIGETA TOSHIYUKI
About 北海道雄信内農協
About dairy cattle
About Reproduction management
About Cattle
About 乳牛
About 受胎
About 授精
About hCG
About 投与