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Kansas State University



David G. Renter




David G. Renter
BS, University of Nebraska at Kearney
DVM, Kansas State University
PhD, Kansas State University

Professor, Epidemiology
Phone: (785)532-4801
Fax: (785)532-4851






My research emphasizes the application and extension of epidemiologic principles and methods to enhance food safety and the sustainability of food animal production systems.  My research is primarily focused on applying epidemiologic approaches to generate industry-relevant knowledge that is used to address complex and contemporary problems in beef cattle production systems.  By utilizing appropriate experimental, observational, and synthesis research methods, my outcome-focused research enables valid data-driven decisions that improve food safety, animal health/well-being, production efficiency, and economic viability of agricultural systems.


My primary teaching role is to further develop professional and graduate student training in epidemiology.  I help teach an introductory course on epidemiology in the first year of the professional veterinary curriculum (Principles and Methods of Epidemiology), and three graduate courses – Disease Epidemiology, Design and Interpretation of Epidemiologic Research, and Applied Production Medicine.  I also deliver several guest lectures in other courses, and advise DVM, MPH, MSc, and PhD students.

Selected Publications (Since 2009)

(a superscript† indicates when my graduate student or post-doctoral scientist was first author; superscripts also indicate when Renter DG was *corresponding author and/or a grant PI*)

Agga G, Scott HM, Amachawadi R, Nagaraja TG, Vinasco J, Bai J, Norby B, Renter DG, Dritz S, Nelssen J, Tokach M. Effects of chlortetracycline and copper supplementation on antimicrobial resistance of fecal Escherichia coli from weaned pigs. Prev Vet Med. in press.

Cernicchiaro N, Renter DG**, Cull CA, Paddock ZD, Shi X, Nagaraja TG. Fecal shedding of non-O157 serogroups of Shiga toxin-producing Escherichia coli in feedlot cattle vaccinated with an E. coli O157:H7 SRP® vaccine and fed a Lactobacillus-based direct-fed microbial   J Food Prot. in press.

Paddock  ZD, Renter DG*, Cull CA, Paddock ZD, Bai J, Nagaraja TG.  Escherichia coli O26 in feedlot cattle: fecal prevalence, isolation, characterization and effects of an E. coli O157 vaccine and a direct-fed microbial.  Foodborne Pathog Dis. 2014; 11(3): 186-193.

Smith R†, Sanderson MW, Jones R, Renter D, Larson RL.  Economic risk analysis model for Bovine Viral Diarrhea Virus biosecurity in cow-calf herds. Prev Vet Med. 2014; 113(4): 492-503.

Jacob M, Bai J, Renter DG, Rogers A, Shi X, Nagaraja TG. Comparing real-time and conventional PCR to culture-based methods for detecting and quantifying Escherichia coli O157 in cattle feces.  J Food Prot. 2014; 77(2): 314-319.

Cernicchiaro N, Cull CA, Paddock ZD, Shi X, Bai J, Nagaraja TG, Renter DG**.  Prevalence of Shiga toxin-producing Escherichia coli and associated virulence genes in feces of commercial feedlot cattle.  Foodborne Pathog Dis. 2013; 10(10): 835-841.

Wang H, Rush B, Wilkerson M, Herman C, Miesner M, Renter DG, Gehring R. From Theory to Practice: Integrating instructional technology into veterinary medical education.  J  Vet Med Edu. 2013; 40(3): 264-271.

Cernicchiaro N†, Renter DG*, Xiang S, White BJ, Bello NM. Hierarchical Bayesian modeling of heterogeneous variances in average daily weight gain of commercial feedlot cattle.  J Anim Sci. 2013; 91(6): 2910-2919.

Paddock ZD, Bai J, Shi X, Renter DG, Nagaraja TG. Detection of Escherichia coli O104 in the feces of feedlot cattle by a multiplex PCR assay designed to target major genetic traits of the virulent hybrid strain responsible for the 2011 German outbreak. Appl Environ Microbiol. 2013; 79(11): 3522-3525.

Paddock ZD, Renter DG*, Shi X, Krehbiel C, DeBey B, Nagaraja TG. Effects of feeding dried distiller’s grains with supplemental starch on fecal shedding of Escherichia coli O157:H7 in experimentally-inoculated steers.  J Anim Sci. 2013; 91(3): 1362-1370.

Hanzlicek G†, Renter DG*, White BJ, Wagner BA, Dargatz DA, Sanderson MW, Scott HM, Larson RE. Management practices associated with the rate of respiratory tract disease among preweaned beef calves in cow-calf operations in the United States. J Am Vet Med Assoc. 2013; 242(9): 1271-1278.

Cernicchiaro N†, White BJ, Renter DG*, Babcock AH. Evaluation of economic and performance outcomes associated with the number of treatments after an initial diagnosis of bovine respiratory disease in commercial feeder cattle. Am J Vet Res. 2013; 74(2): 300-309.

Babcock AH†, White BJ, Renter DG*, Dubnicka S, Scott HM.  Predicting cumulative risk of bovine respiratory disease complex (BRDC) using feedlot arrival data and daily morbidity and mortality counts. Can J Vet Res. 2013; 77(1): 33-44.

Pauly C, White BJ, Coetzee J, Robért B, Baldridge S, Renter DG.  Evaluation of analgesic protocol effect on calf behavior after concurrent castration and dehorning.  Inter J App Res Vet Med.2012; 10(1): 54-61.

Babcock AH†, Cernicchiaro N, White BJ, Dubnicka S, Thomson D, Ives S, Scott HM, Milliken G, Renter DG**.  Quantifying the effects of common risk factors for mortality and culling risk in feedlot cattle populations using a mixed effects count model.  Prev Vet Med. 2012; 108(1): 38-46.

Cull CA†, Paddock ZD, Nagaraja TG, Bello NB, Babcock AH, Renter DG**. Efficacy of a vaccine and a direct-fed microbial against fecal shedding of Escherichia coli O157:H7 in a randomized pen-level field trial of commercial feedlot cattle. Vaccine 2012; 30(43): 6210-6205.

White BJ, Anderson D, Renter DG, Larson R, Mosier D, Kelly L, Theurer M, Robért B, Walz M. Clinical, behavioral, and pulmonary changes following Mycoplasma bovis challenge in calves. Am J Vet Res. 2012; 73(4): 490-497.

Cernicchiaro N†, White BJ,  Renter DG*, Babcock AH, Kelly L, Slattery R. Associations between the distance traveled from sale barns to commercial feedlots in the United States and overall performance, risk of respiratory disease, and cumulative mortality in feeder cattle during 1997 to 2009.  J Anim Sci. 2012; 90(6): 1929-1939.

Cernicchiaro N†, White BJ,  Renter DG*, Babcock AH, Kelly L, Slattery R. Effects of weight loss during transit from sale barns to commercial feedlots on health and performance in feeder cattle cohorts arriving to feedlots from 2000 to 2008. J Anim Sci. 2012; 90(6): 1940-1947.

Cernicchiaro N†, Renter DG**, White BJ, Babcock AH, Fox JT.  Associations between weather conditions during the first 45 days following feedlot arrival and daily respiratory disease risks in autumn-placed U.S. feeder cattle.  J Anim Sci. 2012; 90(4): 1328-1337

Dodd C†, Sanderson MW, Jacob M, Renter DG.  Modeling preharvest and harvest interventions for Escherichia coli O157 contamination on beef cattle carcasses.  J Food Prot. 2011; 74(9): 1422-1433.

Nickell JS, White BJ, Larson RL, Renter DG, Sanderson MS, Peck C.  Bovine Viral Diarrhea Virus (BVDV) Status in cow-calf herds and associations with biosecurity and production practices among Montana beef producers. Bov Pract. 2011; 45(1): 14-22.

Burdett WW, Bolton MW, Kesl L, Nordstrom ST, Roth JA, Renter DG, Saltzman R, Xue W.  Evaluation of the onset of protective immunity from administration of a modified live, non-adjuvanted vaccine prior to intranasal challenge with Bovine Herpesvirus-1.  Bov Pract. 2011; 45(1): 32-39.

Robért B, White BJ, Renter DG, Larson RL.  Determination of lying behavior patterns in healthy beef cattle by use of wireless accelerometers.  Am J Vet Res. 2011; 72(4): 467-473.

Dodd C†, Renter DG**, Shi X, Alam MJ, Nagaraja TG, Sanderson MW.  Prevalence and persistence of Salmonella in cohorts of feedlot cattle.  Foodborne Pathog Dis. 2011; 8(7): 781-789.

Nickell JS, White BJ, Larson RL, Renter DG, Sanderson MW.    A simulation model to quantify the value of implementing whole-herd Bovine Viral Diarrhea Virus testing strategies in beef cow–calf herds.  J Vet Diagn Invest. 2011; 23(2): 194-205.

Dodd CC†, Renter DG**, Thomson DU, Nagaraja TG.  Evaluation of the effects of a commercially available Salmonella Newport siderophore receptor and porin protein vaccine on fecal shedding of Salmonella bacteria and health and performance of feedlot cattle.  Am J Vet Res. 2011; 72(2): 239-247.

Taylor E†, Renter DG, Nagaraja TG. Genetic variations in shiga toxin-producing abilities of bovine and human E. coli O157:H7.  Zoonoses Public Health. 2011; 58(3): 185-91.

Hanzlicek G†, White BJ, Renter DG, Anderson D, Larson R.  Associations between the prevalence of Mollicutes and Mycoplasma bovis and health and performance in stocker calves.  Vet Rec. 2011; 168(1):21.

Sargeant JM, O’Connor A, Renter DG, Kelton D, Snedeker K, Wisener L, Leonard E, Guthrie A, Faires M.  Reporting of methodological features in observational studies of pre-harvest food safety.  Prev Vet Med. 2011; 98(2-3): 88-98.

Hanzlicek G†, White BJ, Renter DG, Blasi DA.  A field study evaluating health, performance, and behavior differences in crossbred beef calves administered different vaccine-parasiticide product combinations.  Vaccine. 2010; 28(37): 5998-6005

Nickell JS, White BJ, Larson RL, Renter DG.  Onset and duration of transient infections among antibody- diverse beef calves exposed to a Bovine Viral Diarrhea Virus persistently infected calf.  Intern J Appl Res Vet Med. 2010; 8(3): 29-39.

Jacob M, Paddock Z, Renter DG*, Lechtenberg K, Nagaraja TG.  Inclusion of dried or wet distillers' grains at different levels in diets of feedlot cattle affects fecal shedding of Escherichia coli O157:H7.  Appl Environ Microbiol. 2010; 76(21): 7238-7242.

Babcock A†, Renter DG**, White BJ, Dubnicka S, Scott H.  Temporal distributions of respiratory disease events within cohorts of feedlot cattle and associations with cattle health and performance indices.  Prev Vet Med. 2010; 97(3-4): 198-219.

Jacob M, Renter DG**, Nagaraja T.G.  Animal- and truckload-level associations between E. coli O157:H7 in feces and on hides at harvest and contamination of pre-evisceration beef carcasses.  J Food Prot. 2010; 73(6): 1030-1037.

Smith R, Sanderson MW, Renter DG, White BJ, Larson RL. A stochastic risk-analysis model for the spread of Bovine Viral Diarrhea Virus after introduction to naïve cow-calf herds.  Prev Vet Med. 2010; 95(1-2): 86-98.

Rao S, Van Donkersgoed J, Bohaychuk V, Besser T, Song X, Wagner B, Hancock D, Renter DG, Dargatz D, Morley P. Antimicrobial drug use and antimicrobial resistance in enteric bacteria among cattle from Alberta feedlots.  Foodborne Pathog Dis. 2010;7(4): 449-457.

Dodd C†, Renter DG**, Fox J, Shi X, Sanderson M, Nagaraja TG.  Genetic relatedness of Escherichia coli O157 isolates from cattle feces and pre-intervention beef carcasses.  Foodborne Pathog Dis. 2010; 7(4): 357-365.

Hanzlicek G†, White BJ, Mosier D, Renter DG, Anderson D.  Serial evaluation of physiological, pathological and behavioral changes related to disease progression of experimentally induced Mannheimia haemolytica pneumonia in postweaned calves.  Am J Vet Res. 2010; 71(3): 359-369.

Jacela JY, DeRouchey J, Tokach M, Goodband R, Nelssen J, Renter DG, Dritz SS.  Feed additives for swine: Fact sheets – high dietary levels of copper and zinc for young pigs, and phytase.  J Swine Health and Prod. 2010; 18(2): 87–91.

Taylor E†, Kastner J, Renter DG.  Challenges involved in the Salmonella Saintpaul outbreak and lessons learned. J Public Health Manag Pract. 2010; 16(3): 221-231.

Jacela J, DeRouchey J, Tokach M, Goodband R, Nelssen J, Renter DG, Dritz S.  Feed additives for swine: Fact sheets - flavors and mold inhibitors, mycotoxin binders, and antioxidants.  J Swine Health and Prod. 2010; 18(1): 27-32.

Wileman B, Thomson D, Reinhardt C, Renter DG.  Analysis of modern technologies commonly used in beef cattle production:  Conventional beef production verses non-conventional production using meta-analysis.  J Anim Sci. 2009; 87: 3418-3426.

Robért B, White BJ, Renter DG, Larson RL.  Evaluation of three dimensional accelerometers to monitor and classify behavior patterns in cattle.  Comp Electro Agri. 2009; 67(1-2): 80-84.

Jacela J, DeRouchey J, Tokach M, Goodband R, Nelssen J, Renter DG, Dritz S.  Feed additives for swine: Fact sheets – carcass modifiers, carbohydrate-degrading enzymes and proteases, and anthelmintics.  J Swine Health and Prod. 2009; 17(6): 325-332.

Jacela J, DeRouchey J, Tokach M, Goodband R, Nelssen J, Renter DG, Dritz S.  Feed additives for swine: Fact sheets – acidifiers and antibiotics.  J Swine Health and Prod. 2009; 17(5): 270-275.

Reinstein S, Fox J, Shi X, Alam M, Renter DG, Nagaraja TG.  Prevalence of Escherichia coli O157:H7 in organically and naturally raised beef cattle.  Appl Environ Microbiol. 2009; 75(16): 5421-5423.  

White BJ and Renter DG.  Bayesian estimation of the performance of using clinical observations and harvest lung lesions for diagnosing bovine respiratory disease in post-weaned beef calves.  J Vet Diagn Invest. 2009; 21(4): 446-453.

Alam M†, Renter DG**, Taylor E, Mina D, Moxley R, Smith D. Antimicrobial susceptibility profiles of Salmonella enterica serotypes recovered from pens of commercial feedlot cattle using different sampling approaches.  Curr Microbiol. 2009; 58(4): 354-359.

Alam M†, Renter DG**, Ives S, Thomson D, Hollis L, Sanderson M, Nagaraja TG.  Potential associations between fecal shedding of Salmonella in feedlot cattle treated for apparent respiratory disease and subsequent adverse health outcomes.  Vet Res. 2009; 40:02.

Jacob M, Fox J, Drouillard J, Renter DG, Nagaraja TG.  Evaluation of feeding dried distiller’s grains with solubles and dry-rolled corn on the fecal prevalence of Escherichia coli O157:H7 and Salmonella spp. in cattle.  Foodborne Pathog Dis. 2009; 6(2): 145-153.

Smith R, Sanderson M, Renter DG, White B, Larson R. A stochastic model to assess the risk of introduction of bovine viral diarrhea virus to cow-calf herds.  Prev Vet Med. 2009; 88(2): 101–108.

Van Donkersgoed J, Bohaychuk V, Besser T, Song X, Wagner B, Hancock D, Renter DG, Dargatz D.  Occurrence of foodborne bacteria in Alberta feedlots.  Can Vet J. 2009; 50(2): 166–172.

Babcock A†, White BJ, Dritz S, Thomson D, Renter DG*.  Feedlot health and performance effects associated with the timing of respiratory disease treatment.  J Anim Sci. 2009; 87(1): 314-327.