奶牛群体改良 DHI

改良牛鲍 Neubauer

乳牛改良协会 Dairy Improvement Association

乳牛改良登记制 Dairy Improvement Registry

奶牛群体改良计划 DHIP ; Dairy Herd Improvement ; DHI

牛群改良计划 DHI

新奥尔良牛鲨队 New Orleans Bullsharks

奶牛群改良方案 DHIP

黄牛改良 yellow cattle improved by crossbreeding ; Yellow cattle improvement

乳牛改良注册制 Herd Improvement Registry