Affiliation: | 1. Animal Welfare and Behaviour Group, School of Veterinary Science, University of Bristol, UK;2. Institute of Veterinary, Animal and Biomedical Sciences, College of Sciences, Massey University, Palmerston North, New Zealand;3. Department of Veterinary Clinical Studies, Easter Bush Veterinary Centre, Royal (Dick) School of Veterinary Studies, The University of Edinburgh, Roslin, UK |