1. Agricultural and Agri-Food Canada; 5403-1 Ave. South Lethbridge AB Canada T1J 4B1
2. Univ. of Melbourne; Melbourne Victoria Australia
3. CSIRO, Livestock Industries, J.M. Rendel Lab.; Rockhampton Queensland Australia
4. CSIRO Livestock Industries, Davis Lab.; Townsville QLD Australia
5. CSIRO; Pulenvale Queensland Australia