1. Dipartimento di Agraria, University of Sassari, Sassari, Italy
2. Department of Animal and Dairy Science, University of Georgia, Athens, GA, USA
3. Department of Agricultural, Food, Environmental and Animal Sciences, University of Udine, Udine, Italy
4. Angus Genetics Inc. - American Angus Association, Saint Joseph, MO, USA
5. Associazione Nazionale Allevatori Pezzata Rossa Italiana (ANAPRI), Udine, Italy