1. Department of Animal and Poultry Science, University of Saskatchewan, Saskatoon, SK S7N 5A8, Canada
2. Department of Animal Nutrition and Feed Management, University of Agriculture in Krakow, al. Mickiewicza 24/28, 30-059 Krakow, Poland
3. Department of Plant Sciences, University of Saskatchewan, Saskatoon, SK S7N 5A8, Canada
4. Agriculture and Agri-Food Canada, Brandon, MB R7A 5Y3, Canada
5. Western Beef Development Centre, Humbolt, SK S0K 2A0, Canada