1. School of Agricultural Sciences, Sam Houston State University, Huntsville, TX, USA
2. Turgeon Consulting Service, LLC, Amarillo, TX, USA
3. Phytobiotics North America LLC, Cary, NC, USA
4. Department of Animal Science, South Dakota State University, Brookings, SD, USA
5. Department of Animal and Food Sciences, Texas Tech University, Lubbock, TX, USA