About KATO SATORU
About HORISAWA JUN
About FUNAUCHI KATSUTOSHI
About SAKAMOTO YOSHIYA
About KIMURA HIROHISA
About 群馬県畜産試験場研究報告
About Japanese Black Cattle
About beef cattle
About egg removal
About artificial fertilization
About embryo transfer
About cattle
About breeding stock
About semen
About sexing
About productivity
About gynecotocological care
About sexing
About seed bull
About sexing
About biological productivity
About Sperm Count
About Cattle
About Reproduction management
About 雌雄
About 選別
About 精液
About 黒毛和種
About 採卵
About 成績