1. Department of Animal Science, University of Manitoba, Winnipeg, Manitoba, Canada R3T 2N2
2. Department of Biosystems Engineering, University of Manitoba, Winnipeg, Manitoba, Canada R3T 2N2
3. Guelph Research and Development Centre, Agriculture Agri-Food Canada, Guelph, Ontario, Canada N1G 5C9
4. Hubei Key Laboratory of Animal Nutrition and Feed Science, School of Animal Science and Nutritional Engineering, Wuhan Polytechnic University, Wuhan 430023, China