1. Dairy and Swine Research and Development Centre; Agriculture and Agri-Food Canada; Sherbrooke; QC; Canada
2. Lethbridge Research Centre; Agriculture and Agri-Food Canada; Lethbridge; AB; Canada
3. Département de biologie; Université de Sherbrooke; Sherbrooke; QC; Canada
4. Biotechnology Research Centre; La Trobe University; Bendigo; Vic.; Australia