1. Centre for Animal Production and Health, Murdoch University, Murdoch, WA 6150, Australia
2. Department of Economic Development, Jobs, Transport and Resources, 915 Mount Napier Road, Hamilton, VIC 3300, Australia
3. Independent Researcher, 36 Payne Road, Hamilton, VIC 3300, Australia
4. Department of Economic Development, Jobs, Transport and Resources, Sydney Rd, Benalla, VIC 3672, Australia
5. JT Agri-Source, Bradley Drive, Mill Park, VIC 3082, Australia
6. South Australian Research and Development Institute, Naracoorte, SA 5271, Australia
7. School of Agriculture and Environment, Massey University, Palmerston North 4472, New Zealand