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College of Veterinary Medicine

Jordan T Gebhardt

Assistant Professor, Swine Production

Gebhardt

BS (2014), Michigan State University
DVM (2019), Kansas State University
PhD (2020), Kansas State University

jgebhardt@vet.k-state.edu

Research

Dr. Gebhardt’s research interests involve practical problems the swine industry faces focused on production medicine, safety of livestock feed, and nutrition. Much of this research is applied in nature and involves collaboration with production systems and professionals in the field. Recent research has focused on the role the feed supply chain has a potential route of disease transmission, specifically investigating porcine epidemic diarrhea virus (PEDV) and African swine fever virus (ASFV). Dr. Gebhardt works with a collaborative group of swine nutritionists, feed scientists, and veterinarians to holistically understand feed safety and biosecurity and generate practical solutions for swine producers and feed manufacturers (https://www.asi.k-state.edu/research-and-extension/swine/FeedSafetyResources.html). In addition to Feed Safety related research focus, Dr. Gebhardt is a collaborator with the Kansas State Applied Swine Nutrition team providing expertise in swine production and population veterinary medicine (https://www.asi.k-state.edu/research-and-extension/swine/). 

Instruction and Mentoring

Dr. Gebhardt teaches a graduate level course in data management for veterinary and graduate students (DMP830, Quantitative Analysis in Food Production Veterinary Medicine), serves as the advisor for the KSU CVM Student Chapter of the American Association of Swine Veterinarians, and mentors veterinary and graduate students.

Selected Publications

Gebhardt, J.T., S.S. Dritz, C.K. Jones, J.C. Woodworth, and C.B. Paulk. 2020. Importance of biosecurity in relation to swine health: What lessons can be learned from preliminary monitoring for African swine fever virus in a region of ongoing transmission and implications for feed biosecurity. J. Am. Vet. Med. Assoc. (In-Press). 

Wensley, M.R., C.M. Vier, J.T. Gebhardt, M.D. Tokach, J. C. Woodworth, R.D. Goodband, J.M. DeRouchey. 2020. Technical note: Assessment of two methods for estimating bone ash in pigs. J. Anim. Sci. skaa251. doi:10.1093/jas/skaa251. 

Williams, H.E., J.M. DeRouchey, J.C. Woodworth, S.S. Dritz, M.D. Tokach, R.D. Goodband, A.J. Holtcamp, E.M. Bortoluzzi, and J.T. Gebhardt. 2020. Effects of increasing Fe dosage in newborn pigs on suckling and subsequent nursery performance and blood criteria. J. Anim. Sci. 98(8):1-10. doi:10.1093/jas/skaa221. 

Saensukjaroenphon, M., C.E. Evans, C.B. Paulk, J.T. Gebhardt, J.C. Woodworth, C.R. Stark, J.R. Bergstrom, and C.K. Jones. 2020. Impact of storage conditions and premix type on fat-soluble vitamin stability. Transl. Anim. Sci. txaa143. doi:10.1093/tas/txaa143. 

Lerner, A.B., R.A. Cochrane, J.T. Gebhardt, S.S. Dritz, C.K. Jones, J.M. DeRouchey, M.D. Tokach, R.D. Goodband, J. Bai, E. Porter, J. Anderson, P.C. Gauger, D.R. Magstadt, J. Zhang, B. Bass, T. Karnezos, B. de Rodas, and J.C. Woodworth. 2020. Effects of medium chain fatty acids as a mitigation or prevention strategy against porcine epidemic diarrhea virus in swine feed. J. Anim. Sci. skaa159. doi:10.1093/jas/skaa159. 

Gebhardt, J.T., M.D. Tokach, S.S. Dritz, J.M. DeRouchey, J.C. Woodworth, R.D. Goodband, and S.C. Henry. 2020. Post-weaning mortality in commercial swine production I: Review of non-infectious contributing factors. Transl. Anim. Sci. 4(2):462-484. doi:10.1093/tas/txaa068. 

Gebhardt, J.T., M.D. Tokach, S.S. Dritz, J.M. DeRouchey, J.C. Woodworth, R.D. Goodband, and S.C. Henry. 2020. Post-weaning mortality in commercial swine production II: Review of infectious contributing factors. Transl. Anim. Sci. 4(2):485-506. doi:10.1093/tas/txaa052. 

Saensukjaroenphon, M., C.E. Evans, C.B. Paulk, J.T. Gebhardt, J.C. Woodworth, C.R. Stark, J.R. Bergstrom, and C.K. Jones. 2020. Impact of storage conditions and premix type on phytase availability. Transl. Anim. Sci. 4(3):txaa049. doi:10.1093/tas/txaa049. 

Cochrane, R.A., S.S. Dritz, J.C. Woodworth, C.R. Stark, M. Saensukjaroenphon, J.T. Gebhardt, J. Bai, R.A. Hesse, E.G. Poulsen, Q. Chen, P.C. Gauger, R.J. Derscheid, J. Zhang, M.D. Tokach, R.G. Main, and C.K. Jones. 2020. Assessing the effects of medium chain fatty acids and fat sources on PEDV infectivity. Transl. Anim. Sci. 4(2):1-9. doi:10.1093/tas/txz179. 

Gebhardt, J.T., K.A. Thomson, J.C. Woodworth, S.S. Dritz, M.D. Tokach, J.M. DeRouchey, R.D. Goodband, C.K. Jones, R.A. Cochrane, M.C. Niederwerder, S. Fernando, W. Abbas, and T.E. Burkey. 2020. Effect of medium chain fatty acid in nursery pig diets on growth performance, fecal microbial populations, and mitigation properties against porcine epidemic diarrhea virus following storage. J. Anim. Sci. 98(1):1-11. doi:10.1093/jas/skz358. 

Gebhardt, J.T., J.C. Woodworth, M.D. Tokach, J.M. DeRouchey, R.D. Goodband, J.A. Loughmiller, A.L.P. de Souza, M.J. Rincker, and S.S. Dritz. 2019. Determining the influence of chromium propionate and Yucca schidigera on growth performance and carcass composition of pigs housed in a commercial environment. Transl. Anim. Sci. 3(4):1275-1285. doi:10.1093/tas/txz117. 

Niederwerder, M.C., A.M.M. Stoian, R.R.R. Rowland, S.S. Dritz, V. Petrovan, L.A. Constance, J.T. Gebhardt, M. Olcha, C.K. Jones, J.C. Woodworth, Y. Fang, J. Liang, and T.J. Hefley. 2019. Infectious dose of African swine fever virus when consumed naturally in liquid and plant-based feed. Emerg. Inf. Dis. 25(5):891-897. doi:10.3201/eid2505.181495. 

Gebhardt, J.T., J.C. Woodworth, M.D. Tokach, J.M. DeRouchey, R.D. Goodband, J.A. Loughmiller, A.L.P. de Souza, and S.S. Dritz. 2018. Influence of chromium dose and feeding regimen on growth performance and carcass composition of pigs housed in a commercial environment. Transl. Anim. Sci. 3(1):384-392. doi:10.1093/tas/txy104. 

Gebhardt, J.T., J.C. Woodworth, C.K. Jones, M.D. Tokach, P.C. Gauger, R.G. Main, J. Zhang, Q. Chen, J.M. DeRouchey, R.D. Goodband, C.R. Stark, J.R. Bergstrom, J. Bai, and S.S. Dritz. 2018. Determining the impact of commercial feed additives as potential porcine epidemic diarrhea virus mitigation strategies as determined by polymerase chain reaction analysis and bioassay. Transl. Anim. Sci. 3(1):93-102. doi:10.1093/tas/txy100. 

Gebhardt, J.T., R.A. Cochrane, J.C. Woodworth, C.K. Jones, M.C. Niederwerder, M.B. Muckey, C.R. Stark, M.D. Tokach, J.M. DeRouchey, R.D. Goodband, J. Bai, P.C. Gauger, Q. Chen, J. Zhang, R.G. Main, and S.S. Dritz. 2018. Evaluation of the effects of flushing feed manufacturing equipment with chemically treated rice hulls on porcine epidemic diarrhea virus (PEDV) cross contamination during feed manufacturing. J. Anim. Sci. 96(10):4149-4158. doi:10.1093/jas/sky295. 

Schumacher, L.L., R.A. Cochrane, A.R. Huss, J.T. Gebhardt, J.C. Woodworth, C.R. Stark, C.K. Jones, J. Bai, R.G. Main, Q. Chen, J. Zhang, P.C. Gauger, J.M. DeRouchey, R.D. Goodband, M.D. Tokach, and S.S. Dritz. 2018. Feed batch sequencing to decrease the risk of porcine epidemic diarrhea virus (PEDV) cross-contamination during feed manufacturing. J. Anim. Sci. 96(11):4562-4570. doi:10.1093/jas/sky320. 

Gebhardt, J.T., C.B. Paulk, M.D. Tokach, J.M. DeRouchey, R.D. Goodband, J.C. Woodworth, J.A. DeJong, K.F. Coble, C.R. Stark, C.K. Jones, and S.S. Dritz. 2018. Effect of roller mill configuration on growth performance of nursery and finishing pigs and milling characteristics. J. Anim. Sci. 96(6):2278-2292. doi:10.1093/jas/sky147.