**Author details**

Edward C. Webb1 \*, Pieter C. Visagie1 and Japie van der Westhuizen2

\*Address all correspondence to: edward.webb@up.ac.za

1 Department of Animal and Wildlife Sciences, Faculty of Natural and Agricultural Sciences, University of Pretoria, Pretoria, South Africa

2 SA Studbook Animal Improvement Association, Bloemfontein, South Africa
