1. Department of Nutrition and Animal Production, FMVZ, University of São Paulo , Pirassununga, SP 13635-000 , Brazil
2. Department of Animal and Range Science, Montana State University , Bozeman, MT 59717 , USA
3. Department of Animal Science, College of Agriculture “Luiz de Queiroz”, University of São Paulo , Piracicaba, SP 13418-900 , Brazil
4. Texas A&M AgriLife Research and Extension Center , Amarillo, TX 79106 , USA