Grant Alan Dewell
Pre-harvest food safety of beef cattle with a primary focus on E. coli O157, health management of feedlot cattle, and economic considerations for beef production operations. . He has developed research in bovine respiratory disease, infectious reproductive diseases of cattle and low stress cattle handling.
Colorado State University, DVM, 1993
Colorado State University, MS (Agriculture Economics), 1998
Colorado State University, PhD (Epidemiology), 2008
Hanthorn CJ, Dewell GA, Dewell RD, Cooper VL, Wang C, Plummer PJ, Lakritz J. 2014. Serum concentrations of haptoglobin and haptoglobin-matrix metalloproteinase 9 (Hp-MMP 9) complexes of bovine calves in a bacterial respiratory challenge model. BMC Veterinary Research 10:285.
Hanthorn CJ, Dewell RD, Cooper VL, Frana TS, Plummer PJ, Wang C, Dewell GA. 2014. Randomized clinical trial to evaluate the pathogenicity of Biberstenia trehalosi in respiratory disease among calves.BMC Veterinary Research 10:89
Villarroel A, SR McDonald, WL Walker, L Kaiser, RD Dewell, GA Dewell. 2010 A survey of reasons why veterinarians leave rural veterinary practice in the United States. Journal of the American Veterinary Medical Association, 236(8):859-867.
Villarroel A, SR McDonald, WL Walker, L Kaiser, RD Dewell, GA Dewell. 2010 A survey of reasons why veterinarians enter rural veterinary practice in the United States. Journal of the American Veterinary Medical Association, 236(8):849-857.
Dewell GA, Simpson CA, Dewell RD, Hyatt DR, Belk KE, Scanga JA, Morley PS, Grandin T, Smith GC, Dargatz DA, Wagner BA and Salman MD. 2008. Risk associated with transportation and lairage on hide contamination with Salmonella enterica in finished beef cattle at slaughter. Journal of Food Protection 71(11):2228-2232.
Dewell GA, Simpson CA, Dewell RD, Hyatt DR, Belk KE, Scanga JA, Morley PS, Grandin T, Smith GC, Dargatz DA, Wagner BA and Salman MD. 2008. Impact of transportation and lairage on hide contamination with Escherichia coli O157 in finished beef cattle. Journal of Food Protection 71(6):1114-1118.
Dargatz, DA, Dewell GA, and Mortimer R. 2004. Calving and calving management of beef cows and heifers on cow/calf operations in the United States. Theriogenology 61(6):997-1007.
Iowa State University Extension and Outreach Award for Excellence in Research-Based Programming
Academy of Veterinary Consultants
AudioVisual Technology Program Sub-committee
American Association of Bovine
Student Activities Committee
Iowa Veterinary Medical Association
Board of Directors
American Veterinary Medical Association
Iowa Cattleman's Association
National Cattleman's Beef Association