1. Institute of Veterinary, Animal and Biomedical Sciences, Massey University, Private Bag 11-222, Palmerston North 4442, New Zealand
2. Department of Natural Science, Unitec Institute of Technology, Private Bag 92025, Victoria Street West, Auckland 1142, New Zealand
3. RNZSPCA, PO Box 15-309, New Lynn, Auckland 0640, New Zealand