Norasak Kalchayanand
(Nor)
Meat Safety & Quality Research
Research Microbiologist
Phone: (402) 762-4224
Fax: (402) 762-4149
U.S. MEAT ANIMAL RESEARCH CENTER
SPUR 18D CLAY CENTER, NE, 68933
Wells, J., Kalchayanand, N., Berry, E.D., Oliver, W.T. 2013. Effects of antimicrobials fed as dietary growth promoters on faecal shedding of Campylobacter, Salmonella and shiga-toxin producing Escherichia coli in swine. Journal of Applied Microbiology. 114(2):318-328.
Kalchayanand, N., Arthur, T.M., Bosilevac, J.M., Wells, J., Wheeler, T.L. 2013. Chromogenic agar medium for detection and isolation of Escherichia coli serogroups O26,O45,O103,O111,O121, and O145 from fresh beef and cattle feces. Journal of Food Protection. 76(2):192-199.
Schmidt, J.W., Arthur, T.M., Bosilevac, J.M., Kalchayanand, N., Wheeler, T.L. 2012. Detection of Escherichia coli O157:H7 and Salmonella enterica in air and droplets at three United States commercial beef processing plants. Journal of Food Protection. 75(12):2213-2218.
Kalchayanand, N., Arthur, T.M., Bosilevac, J.M., Wheeler, T.L. 2012. Detection methods and intervention strategies for shiga toxin-producing E. coli in beef [abstract]. Annual Meeting of the Institute of Food Technologists. 061-01:52.
Wang, R., Bono, J.L., Kalchayanand, N., Shackelford, S.D., Harhay, D.M. 2012. Biofilm formation by Shiga Toxin–Producing Escherichia coli O157:H7 and non-O157 strains and their tolerance to sanitizers commonly used in the food processing environment. Journal of Food Protection. 75(8):1418-1428.
Kalchayanand, N., Bosilevac, J.M., Wheeler, T.L. 2012. Efficacy of ultraviolet light (UV) and UV-ozone as an intervention to reduce pathogens-contaminated fresh beef.[Abstract] Annual Meeting of the Institute of Food Technologists.June 25-28, 2012, Las Vegas, Nevada. Abstract 035-71:25.
Schmidt, J.W., Harhay, D.M., Kalchayanand, N., Bosilevac, J.M., Shackelford, S.D., Wheeler, T.L., Koohmaraie, M. 2012. Prevalence, enumeration, serotypes, and antimicrobial resistance phenotypes of Salmonella enterica isolates from carcasses at two large United States pork processing plants. Applied and Environmental Microbiology. 78(8):2716-2726.
Schmidt, J.W., Wang, R., Kalchayanand, N., Wheeler, T.L., Koohmaraie, M. 2012. Efficacy of hypobromous acid as a hide-on carcass antimicrobial intervention. Journal of Food Protection. 75 (5): 955-958.
Gragg, S.E., Loneragan, G.H., Brashears, M.M., Arthur, T.M., Bosilevac, J.M., Kalchayanand, N., Wang, R., Schmidt, J.W., Brooks, J.C., Shackelford, S.D., Wheeler, T.L., Brown, T.R., Brichta-Harhay, D.M. 2011. Salmonella in lymph nodes of cattle presented for harvest [abstract]. Proceeding of the 2011 Conference of Research Workers in Animal Diseases, December 4-6, 2011, Chicago, Illinois. p. 149.
Wells, J., Shackelford, S.D., Berry, E.D., Kalchayanand, N., Bosilevac, J.M., Wheeler, T.L. 2011. Impact of reducing the level of wet distillers grains fed to cattle prior to harvest on prevalence and levels of Escherichia coli O157:H7 in feces and on hides. Journal of Food Protection. 74(10):1611-1617.
Bosilevac, J.M., Schmidt, J.W., Kalchayanand, N., Wheeler, T.L., Koohmaraie, M. 2011. The effect of sample size and matrix on the ability of rapid methods to detect E. coli O157:H7 [abstract]. 2011 Beef Industry Safety Summit, Dallas, TX. March 2-4, 2011. 2011 Beef Industry Safety Summit Research Update. Abstract No. 1.
Harhay, D.M., Arthur, T.M., Bosilevac, J.M., Kalchayanand, N., Shackelford, S.D., Wheeler, T.L., Koohmaraie, M. 2011. Diversity of multidrug-resistant Salmonella enterica strains associated with cattle at harvest in the United States. Applied and Environmental Microbiology. 77(5):1783-1796.
Bosilevac, J.M., Kalchayanand, N., Schmidt, J.W., Shackelford, S.D., Wheeler, T.L., Koohmaraie, M. 2010. Inoculation of beef with low concentrations of Escherichia coli O157:H7 and examination of factors that interfere with its detection by culture isolation and rapid methods. Journal of Food Protection. 73:2180-2188.
Harhay, D.M., Poole, T.L., Durso, L.M., Arthur, T.M., Bosilevac, J.M., Kalchayanand, N., Shackelford, S.D., Wheeler, T.L., Koohmaraie, M. 2010. Diversity of Multi-drug Resistant Salmonella enterica Associated with Cull Cattle at Harvest in the United States [abstract]. American Society for Microbiology. p. 25, Presentation No. S4:1 and p. 111, Poster No. B176.
Arthur, T.M., Harhay, D.M., Bosilevac, J.M., Kalchayanand, N., Shackelford, S.D., Wheeler, T.L., Koohmaraie, M. 2010. Super Shedding of Escherichia coli O157:H7 by Cattle and the Impact on Beef Carcass Contamination. Meat Science. 86:32-37. Special Issue: 56th International Congress of Meat Science and Technology (56th ICoMST) August 15-20, 2010, Jeju, Korea. (Proceedings) Available: http://dx.doi.org/10.1016/j.meatsci.2010.04.019
Arthur, T.M., Bosilevac, J.M., Kalchayanand, N., Wells, J., Shackelford, S.D., Wheeler, T.L., Koohmarie, M. 2010. Evaluation of a Direct-Fed Microbial Product Effect on the Prevalence and Load of Escherichia coli O157:H7 in Feedlot Cattle. Journal of Food Protection. 73(2):366-371.
Arthur, T.M., Keen, J.E., Bosilevac, J.M., Brichta-Harhay, D.M., Kalchayanand, N., Shackelford, S.D., Wheeler, T.L., Nou, X., Koohmaraie, M. 2009. Longitudinal Study of Escherichia coli O157:H7 in a Beef Cattle Feedlot and Role of High-Level Shedders in Hide Contamination. Applied and Environmental Microbiology. 75(20):6515-6523.
Berry, E.D., Millner, P.D., Wells, J., Kalchayanand, N. 2009. Evaluation of the Fate of Naturally Occurring Escherichia coli O157:H7 During Bovine Manure Composting Processes. [abstract] In: Proceedings 2009 International Annual Meetings of Agronomy Society of America, Crop Science Society of America, Soil Science Society of America, 1-5 Nov 2009, Pittsburgh, PA. CDROM.
Wells, J., Shackelford, S.D., Berry, E.D., Kalchayanand, N., Guerini, M.N., Varel, V.H., Arthur, T.M., Bosilevac, J.M., Freetly, H.C., Wheeler, T.L., Ferrell, C.L., Koohmaraie, M. 2009. Prevalence and Level of Escherichia coli O157:H7 in Feces and on Hides of Feedlot Steers Fed Diets With or Without Wet Distillers Grains with Solubles. Journal of Food Protection. 72(8):1624-1633.
Arthur, T.M., Keen, J.E., Bosilevac, J.M., Brichta-Harhay, D.M., Kalchayanand, N., Shackelford, S.D., Wheeler, T.L., Nou, X., Koohmaraie, M. 2009. Longitudinal Study of Escherichia coli O157:H7 in a Beef Cattle Feedlot and the Role of High Shedders in Hide Contamination [abstract]. 7th International Symposium on Shiga Toxin (Verocytotoxin)-Producing Escherichia coli Infections (VTEC2009) Paper No. 195.
Wells, J., Bosilevac, J.M., Kalchayanand, N., Arthur, T.M., Shackelford, S.D., Wheeler, T.L., Koohmaraie, M. 2009. Prevalence of Mycobacterium avium subsp. paratuberculosis in Ileocecal Lymph Nodes and on Hides and Carcasses from Cull Cows and Fed Cattle at Commercial Beef Processing Plants in the United States. Journal of Food Protection 72(7):1457-1462.
Wells, J., Shackelford, S.D., Berry, E.D., Kalchayanand, N., Varel, V.H., Arthur, T.M., Bosilevac, J.M., Freetly, H.C., Wheeler, T.L., Ferrell, C.L., Koohmaraie, M. 2009. Prevalence and Level of Escherichia coli O157:H7 in Feces and On Hides of Feedlot Steers Fed Diets With or Without Wet Distillers Grains With Solubles [abstract]. Microbial Ecology 57(3):583-584.
Kalchayanand, N., Arthur, T.M., Bosilevac, J.M., Harhay, D.M., Shackelford, S.D., Wells, J., Wheeler, T.L., Koohmaraie, M. 2009. Prevalence of Clostridium difficile from Commercial Beef Processing Plants in the United States [abstract]. Institute of Food Technologists (IFT), Division Food Microbiology, Session 026-15, p. 82.
Bosilevac, J.M., Guerini, M.N., Kalchayanand, N., Koohmaraie, M. 2009. Prevalence and Characterization of Salmonellae in Commercial Ground Beef in the United States. Applied and Environmental Microbiology. 75(7):1892-1900.
Kalchayanand, N., Brichta-Harhay, D.M., Arthur, T.M., Bosilevac, J.M., Guerini, M.N., Wheeler, T.L., Shackelford, S.D., Koohmaraie, M. 2009. Prevalence Rates of Escherichia coli O157:H7 and Salmonella at Different Sampling Sites on Cattle Hides at a Feedlot and Processing Plant. Journal of Food Protection. 72(6):1267-1271.
Bosilevac, J.M., Wells, J., Arthur, T.M., Kalchayanand, N., Shackelford, S.D., Berry, E.D., Bono, J.L., Harhay, D.M., Wheeler, T.L., Koohmaraie, M. 2009. Escherichia coli O157:H7 and Salmonella in Small Processing Plants and the Effect of Feeding Wet Distillers Grains with Solubles on E. coli O157:H7 [abstract]. NCBA Beef Industry Safety Summit, San Diego, CA, March 4-6, 2009.
Harhay, D.M., Arthur, T.M., Bosilevac, J.M., Kalchayanand, N., Shackelford, S.D., Wheeler, T.L., Koohmaraie, M. 2009. Characterization of Multidrug-resistant Salmonella Isolated from Cull and Fed Cattle at Slaughter in the United States [abstract]. NCBA Beef Industry Safety Summit, San Diego, CA, March 4-6, 2009.
Bosilevac, J.M., Arthur, T.M., Bono, J.L., Brichta-Harhay, D.M., Kalchayanand, N., King, D.A., Shackelford, S.D., Wheeler, T.L., Koohmaraie, M. 2009. Prevalence and Enumeration of Escherichia coli O157:H7 and Salmonella in U.S. Abattoirs That Process Fewer Than 1,000 Head of Cattle Per Day. Journal of Food Protection. 72(6):1272-1278.
Harhay, D.M., Guerini, M.N., Arthur, T.M., Bosilevac, J.M., Kalchayanand, N., Shackelford, S.D., Wheeler, T.L., Koohmaraie, M. Salmonella and Escherichia coli O157:H7 contamination on hides and carcasses of cull cattle presented for slaughter in the United States: an evaluation of prevalence and bacterial loads by immunomagnetic separation and direct plating methods. 2008. Applied and Environmental Microbiology 74(20):6289-6297.
Arthur, T.M., Bosilevac, J.M., Harhay, D.M., Kalchayanand, N., King, D.A., Shackelford, S.D., Wheeler, T.L., Koohmaraie, M. 2008. Source tracking of Escherichia coli O157:H7 and Salmonella contamination in the lairage environment at commercial U.S. beef processing plants and identification of an effective intervention. Journal of Food Protection. 71(9):1752-1760.
Arthur, T.M., Harhay, D.M., Bosilevac, J.M., Guerini, M.N., Kalchayanand, N., Wells, J., Shackelford, S.D., Wheeler, T.L., Koohmaraie, M. 2008. Prevalence and characterization of Salmonella in bovine lymph nodes potentially destined for use in ground beef. Journal of Food Protection 71(8):1685-1688.
Kalchayanand, N., Arthur, T.M., Bosilevac, J.M., Brichta-Harhay, D.M., Guerini, M.N., Wheeler, T.L., Koohmaraie, M. 2008. Evaluation of various antimicrobial interventions for the reduction of Escherichia coli O157:H7 on bovine heads during processing. Journal of Food Protection 71(3):621-624.
Guerini, M.N., Harhay, D.M., Shackelford, S.D., Arthur, T.M., Bosilevac, J.M., Kalchayanand, N., Wheeler, T.L., Koohmaraie, M. 2007. Listeria prevalence and Listeria monocytogenes serovar diversity at cull cow and bull processing plants in the United States. Journal of Food Protection. 70(11):2578-2582.
Kalchayanand, N., Arthur, T.M., Bosilevac, J.M., Harhay, D.M., Guerini, M.N., Shackelford, S.D., Wheeler, T.L., Koohmaraie, M. 2007. Microbiological characterization of lamb carcasses at commercial processing plants in the United States. Journal of Food Protection 70(8):1811-1819.
Harhay, D.M., Arthur, T.M., Bosilevac, J.M., Guerini, M.N., Kalchayanand, N., Koohmaraie, M. 2007. Enumeration of Salmonella and Escherichia coli O157:H7 in ground beef, cattle carcass, hide and faecal samples using direct plating methods. Journal of Applied Microbiology 103(5):1657-1668.
Arthur, T.M., Bosilevac, J.M., Brichta-Harhay, D.M., Kalchayanand, N., Shackelford, S.D., Wheeler, T.L., Koohmaraie, M. 2007. Effects of a Minimal Hide Wash Cabinet on the Levels and Prevalence of Escherichia coli O157:H7 and Salmonella on the Hides of Beef Cattle at Slaughter. Journal of Food Protection 70:1076-1079.
Arthur, T.M., Bosilevac, J.M., Harhay, D.M., Guerini, M.N., Kalchayanand, N., Shackelford, S.D., Wheeler, T.L., Koohmaraie, M. 2007. Transportation and lairage environment effects on prevalence, numbers, and diversity of Escherichia coli O157:H7 on hides and carcasses of beef cattle at processing. Journal of Food Protection 70(2):280-286.