作者单位:
Delta G, Miles City, MT 59301
[1]
Department of Animal Science, University of Nebraska, Lincoln 68583
[2]
Department of Animal Sciences, Colorado State University, Fort Collins 80523
[3]
Department of Animal Science, Iowa State University, Ames 50011
[4]
Department of Animal Sciences, Kansas State University, Manhattan 66506
[5]
Danbred North America, Columbus, NE 68601
[6]
发布时间
2014-02-28