[1] Charles Sturt Univ, Sch Anim & Vet Sci, Anim Behav & Welf, Wagga Wagga, NSW 2650, Australia
[2] Univ Queensland, Sch Vet Sci, Anim Welf, Gatton, Qld 4343, Australia
[3] Univ Queensland, Sch Vet Sci, Ctr Anim Welf & Eth, Gatton, Qld 4343, Australia
[4] Murdoch Univ, Sch Vet & Life Sci, Anim Welf & Ethics, Murdoch, WA 6150, Australia
[5] Univ Sydney, Sch Publ Hlth, Ctr Values Ethics & Law Med, Sydney, NSW 2006, Australia
[6] Univ Sydney, Fac Vet Sci, Sydney, NSW 2006, Australia
[7] Univ Melbourne, Fac Vet & Agr Sci, Chair Cattle Sheep Prod Med, Melbourne, Vic 3010, Australia
[8] Univ Adelaide, Sch Anim & Vet Sci, Roseworthy Campus, Roseworthy, SA 5371, Australia
[9] Univ Sydney, Fac Vet Sci, Sydney, NSW 2006, Australia
[10] Massey Univ, Inst Vet Anim & Biomed Sci, Vet Ethol, Palmerston North 4442, New Zealand
[11] Univ Sydney, Fac Vet Sci, Sydney, NSW 2006, Australia
[12] Univ Sydney, Fac Vet Sci, Anim Behav & Anim Welf Sci, Sydney, NSW 2006, Australia