Biography and expertise
PrimeLine Beef, LLC (2007-present)
Owner of a vertically integrated Beef and Genetics business
ARTistry Geneics (2013-present)
Owner of a livestock reproduction business
Viagen, Inc (2004-2013)
Director of Operations
Ambion, Inc 1996-2004
Manager of Strategic Marketing & Business Analysis
Marketing manager
Product Manager
Owner of a vertically integrated Beef and Genetics business
ARTistry Geneics (2013-present)
Owner of a livestock reproduction business
Viagen, Inc (2004-2013)
Director of Operations
Ambion, Inc 1996-2004
Manager of Strategic Marketing & Business Analysis
Marketing manager
Product Manager
Education
Master's Degree
MBA in Business Administration
Texas State University, 2001
Bachelor's Degree
BS in Biochemistry
Texas A&M University, 1991
Teaching Interests
Research Interests
Featured scholarly/creative works
- Barrera, V., Brummett, O. S., Evans, A. E., Dela Rosa, A. K., Sims, M. B., Rosales Nieto, C. A., … Sims, R. N. (n.d.). Β-defensin, cytokine, and crp expression within blood in calves diagnosed with bovine respiratory disease.
- Rojas, A., Sims, R. N., Bruner, B. L., Olanrewaju, A. A., Cavazos-Galindo, J. M., Cuevas-Reyes, V., … Rosales Nieto, C. A. (2026). Endocrine, Metabolic, and Reproductive Responses to Bee Pollen Supplementation During Seasonal Anestrus in Goats in a Time-Dependent Manner. Biology, 15, 1846. https://doi.org/10.3390/biology15201846
- Rojas, A., Solice, L. K., Sims, R. N., Bruner, B. L., Olanrewaju, A. A., Cardoso, R. C., … Rosales Nieto, C. A. (2026). Metabolomic Profiling Uncovers Physiological and Parasitological Adaptations to Bee Pollen Supplementation in Goats. Biology, 15, 1717. https://doi.org/10.3390/biology15191717
- Dela Rosa, A. K., Solice, L. K., Reyes, N. E., Brummett, O. S., Sims, M. B., Pierdolla, E. L., … Sims, R. N. (n.d.). Effects of a bovine appeasing substance applied at estrous synchronization on stress, cyclicity, and pregnancy. In Animal Science.
- Brummett, O. S., Evans, A., Dela Rosa, A. K., Barrera, V., Bruner, B. L., Greene, E. S., … Sims, R. N. (n.d.). Bovine defensin expression in nasal mucosal secretions of calves challenged with Bovine Respiratory Disease: A preliminary analysis. In Animal Science.
Featured awards
- Award / Honor Recipient: College of Applied Arts - Excellence in Teaching, College of Applied Arts. August 2023

Featured service activities
- Member
Personnel Committee
- Chair
SGBI - Research and Education Committee
- Member
Faculty Search Committee - Generalist
- Member
Faculty Search Committee - Ag Mech
- Undergraduate Advisor
TXST Show Team
- Undergraduate Advisor
Texas State Show Team
