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Geof Smith, DVM, PhD

Professor of Ruminant Medicine

Office: 919.513.6288

Geof Smith received a BS in animal and dairy science from Clemson University in 1994. From there he received a MS in toxicology from University of Illinois in 1996 and a DVM in 1998. Following graduation, Geof remained at the University of Illinois for another 4 years while he completed an internship and residency in ruminant internal medicine along with a PhD in physiology. Dr Smith joined the faculty at North Carolina State University in 2002 and is currently a Professor of Ruminant medicine in the Department of Population Health & Pathobiology. He is a Diplomate of the American College of Veterinary Internal Medicine (ACVIM) and his primary clinical and research interests revolve around clinical medicine of ruminants with a specific focus on calf health and ruminant pharmacology.
DVM - University of Illinois - 1998
MS - University of Illinois - 1996
PhD - University of Illinois - 2002
Diplomate, ACVIM
Pathophysiology and treatment of diseases affecting calves, ruminant pharmacology, food safety and prevention of drug residues
  • (2018) Automation and applications of the tolerance limit method in estimating meat withdrawal periods for veterinary drugs.Udiani, O., Mason, S., Smith, G., Mzyk, D., Gehring, R., Tell, L., Riviere, J.E., Baynes, R.E. | Comp Elect Agric 146;125-135.
  • (2017) Disease prevention and control for the dairy heifer. In: Large Dairy Herd Management, 3rd edition.Smith, G.W. | eBook published by the American Dairy Science Association, 2017:445-455.
  • (2017) Pharmacokinetics and distribution in interstitial and pulmonary epithelial lining fluid of danofloxacin in ruminant and preruminant calves.Mzyk, D.A., Baynes, R.E., Messenger, K.M., Martinez, M., Smith, G.W. | J Vet Pharmacol Therap 40:179-191.
  • (2017) Invited review: Abomasal emptying in calves and its potential influence on gastrointestinal disease.Burgstaller, J., Wittek, T., Smith, G.W. | J Dairy Sci 100:17-35.
  • (2017) Cerebral disorders of calves.Dore, V., Smith, G.W. | Vet Clin Food Anim 33:27-41.
  • (2016) Pharmacokinetics and tissue elimination of flunixin in veal calves.Kissell, L.W., Brinson, P.D., Gehring, R., Tell, L.A., Wetzlich, S.E., Baynes, R.E., Riviere, J.E., Smith, G.W. | Am J Vet Res 77:634-640.
  • (2016) Invited review: Health concerns and management of select veterinary drug residues.Baynes, R.E., Dedonder, K., Kissell, L., Myzk, D., Marmulak, T., Smith, G.W., Tell, L., Gehring, R., Davis, J., Riviere, J.E. | Food Chem Toxicol 88:112-122.
  • (2015) Pharmacokinetics of intramammary hetacillin in dairy cattle milked 3 times per day.Lindquist, D.A., Baynes, R.E., Smith, G.W. | J Dairy Sci 98:1856-1861.
  • (2015) Effect of supplementing pasteurized milk balancer products to heat-treated whole milk on the growth and health of dairy calves.Glosson, K.M., Hopkins, B.A., Washburn, S.P., Davidson, S., Smith, G., Earleywine, T., Ma, C. | J Dairy Sci 98:1127-1135.
  • (2015) Comparison of pharmacokinetics and milk elimination of flunixin in healthy cows and cows with mastitis.Kissell L.W., Leavens, T.L., Baynes, R.E., Riviere, J.E., Smith, G.W. | J Am Vet Med Assoc 246:118-125.
  • (2015) Characterization of the serologic response induced by vaccination of late-gestation cows with a Salmonella Dublin vaccine.Smith, G.W., Smith, F., Zuidhof, S., Foster, D.M. | J Dairy Sci 31:47-60.
  • (2014) Passive immunity stimulated by vaccination of dry cows with a Salmonella bacterial extract.Smith, G.W., Alley, M.L., Foster, D.M., Smith, F. Wileman, B.W. | J Vet Int Med 28:1602-1605.
  • (2014) Residue avoidance in dairy cattle production systems. In: Strategies for Reducing Drug and Chemical Residues in Food Animals: International Approaches to Residue Avoidance, Management, and Testing.Smith, G.W. | Edited by R.E. Baynes and J.E. Riviere. John Wiley & Sons, 2014:137-160.
  • (2014) Implantation of an ultrafiltration device in the ileum and spiral colon of steers to continuously collect intestinal fluid.Warren, C.D., Prange, P., Campbell, N.B., Gerard, M.P., Martin, L.G., Jacob, M.E., Smith, G.W., Papich, M.G., Foster, D.M. | Res Vet Sci 97:611-615.
  • (2014) Guest Editors – Fluid and Electrolyte Therapy: Veterinary Clinics of North America Food Animal Practice.Smith, G.W., Roussel, A.J. | Elsevier Publishing, July, 2014.
  • (2014) Fluid therapy in calves.Smith, G.W., Berchtold, J. | Vet Clin Food Anim 30:409-427.
  • (2014) Development of a physiologically based pharmacokinetic model for flunixin in cattle (Bos taurus)Leavens, T.L., Tell, L.A., Kissell, L.W., Smith, G.W., Smith, D.J., Wagner, S.A., Shelver, W.L., Wu, H. Baynes, R.E., Riviere, J.E. | Food Addit Contam A 31:1506-1521.