Explore Research at the University of Florida: Mauricio Elzo, a beef DNA researcher with the University of Florida/IFAS department of animal sciences, explains his research crossbreeding cattle. By working with producers and geneticists to crossbreed Angus and Brahman cattle, Elzo and his team are able to produce offspring that are more efficient and productive in the Southern heat, while maintaining desirable characteristics like marbling and tenderness of the meat.