1. Discipline of Veterinary Sciences; College of Public Health Medical and Veterinary Sciences; James Cook University; Townsville QLD Australia
2. Department of Veterinary Services; Ministry of Fisheries and Livestock; Lusaka Zambia
3. School of Animal and Veterinary Sciences and Graham Centre for Agricultural Innovation; Charles Sturt University; Wagga Wagga NSW Australia
4. Faculty of Veterinary Science; Department of Production Animal Studies; University of Pretoria; Pretoria South Africa