About KOYAMA Keisuke
About Department of Advanced Pathobiology, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Osaka 598-8531, Japan
About TAKAHASHI Takayoshi
About Nakashibetsu Branch of Hokkaido Agriculture Cooperative Association, Hokkaido 086-1007, Japan
About Journal of Reproduction and Development
About dairy cattle
About conception rate
About breeding stock
About parity (birth)
About milk yield
About genetic effect
About fertility (ratio)
About seed bull
About breeding performance
About Heredity
About 娘牛妊娠率
About 予測遺伝能力
About Daughter pregnancy rate (DPR)
About Fertility
About Genetic selection
About PTAM
About Retrospective cohort study
About Reproduction management
About Cattle
About 日本
About 乳牛
About 娘
About 牛
About 妊娠率
About 種牛
About 予測
About 遺伝
About 能力
About 繁殖成績
About 乳
About 関連性