作者单位:
Agriculture and Agri-Food Canada, Lethbridge Research Centre, Lethbridge, AB, Canada
[1]
Department of Veterinary Biomedical Sciences, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
[2]
Department of Large Animal Clinical Sciences, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
[3]
Department of Dairy Science, Rakuno Gakuen University, Ebetsu, Hokkaido, Japan
[4]
Alberta Agriculture and .Rural Development, Edmonton, Alberta, Canada
[5]
发布时间
2013-11-20