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    Academic Journals

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• 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

  Authors:Z. D. Paddock, J. Bai, X. Shi, D. G. Renter, and T. G. NagarajaFrom:Applied and Environmental Microbiology (Vol. 79, Issue 11) Peer-Reviewed

  June 1, 2013 Report

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• Effects of high condensed-tannin substrate, prior dietary tannin exposure, antimicrobial inclusion, and animal species on fermentation parameters following a 48 h in vitro incubation

  Authors:A N Hoehn, E C Titgemeyer, T G Nagaraja, J S Drouillard, M D Miesner, and K C OlsonFrom:Journal of Animal Science (Vol. 96, Issue 1) Peer-Reviewed

  Jan. 2018259 words Author abstract

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• Occurrence of the transferable copper resistance gene tcrB among fecal Enterococci of U.S. feedlot cattle fed copper-supplemented diets

  Authors:R. G. Amachawadi, H. M. Scott, C. A. Alvarado, T. R. Mainini, J. Vinasco, J. S. Drouillard, et al.From:Applied and Environmental Microbiology (Vol. 79, Issue 14) Peer-Reviewed

  July 15, 2013 Report

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• Comparative genomics reveals differences in mobile virulence genes of Escherichia coli O103 pathotypes of bovine fecal origin

  Authors:Lance W. Noll, Jay N. Worley, Xun Yang, Pragathi B. Shridhar, Justin B. Ludwig, Xiaorong Shi, et al.From:PLoS ONE (Vol. 13, Issue 2) Peer-Reviewed

  Feb. 1, 20188,909 words Report 1590LAuthor(s): Lance W. Noll 1, Jay N. Worley 2, Xun Yang 2, Pragathi B. Shridhar 1, Justin B. Ludwig 1, Xiaorong Shi 1, Jianfa Bai 3, Doina Caragea 4, Jianghong Meng 2, T. G. Nagaraja 1,* Introduction...

• Effects of dietary copper, zinc, and ractopamine hydrochloride on finishing pig growth performance, carcass characteristics, and antimicrobial susceptibility of enteric bacteria

  Authors:J. A. Feldpausch, R. G. Amachawadi, M. D. Tokach, H. M. Scott, T. G. Nagaraja, S. S. Dritz, et al.From:Journal of Animal Science (Vol. 94, Issue 8) Peer-Reviewed

  Aug. 2016425 words Author abstract, Rep...

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• Virulence gene profiles and clonal relationships of escherichia coli O26:H11 isolates from feedlot cattle as determined by whole-genome sequencing

  Authors:Narjol Gonzalez-Escalona, Magaly Toro, Lydia V. Rump, Guojie Cao, T. G. Nagaraja, and Jianghong MengFrom:Applied and Environmental Microbiology (Vol. 82, Issue 13) Peer-Reviewed

  July 1, 2016260 words Article

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• Effects of feeding probiotic or chlortetracycline or a combination on nursery pig growth performance

  Authors:H. E. Williams, M. D. Tokach, S. S. Dritz, J. C. Woodworth, J. M. DeRouchey, R. G. Amachawadi, et al.From:Journal of Animal Science (Vol. 95, Issue 3) Peer-Reviewed

  Mar. 2017304 words Author abstract

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• Prevalence of Escherichia coli O157 in cattle feeds in midwestern feedlots

  Authors:Charles C. Dodd, Michael W. Sanderson, Jan M. Sargeant, T. G. Nagaraja, Richard D. Oberst, Robert A. Smith, et al.From:Applied and Environmental Microbiology (Vol. 69, Issue 9) Peer-Reviewed

  Sept. 200341 words Article

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• Ruminal microbes, microbial products, and systemic inflammation

  Author:T. G. NagarajaFrom:Journal of Animal Science (Vol. 94, Issue 10) Peer-Reviewed

  Oct. 2016387 words Author abstract, Rep...

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• Bacterial flora of liver abscesses in crossbred beef cattle and Holstein steers fed finishing diets with or without tylosin

  Authors:R. G. Amachawadi, T. J. Purvis, B. V. Lubbers, J. W. Homm, C. L. Maxwell, and T. G. NagarajaFrom:Journal of Animal Science (Vol. 95, Issue 8) Peer-Reviewed

  Aug. 2017 Report

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• Effects of limonene on ruminal Fusobacterium necrophorum concentrations, fermentation, and lysine degradation in cattle

  Authors:S. Saed Samii, N. Wallace, T. G. Nagaraja, M. A. Engstrom, M. D. Miesner, C. K. Armendariz, et al.From:Journal of Animal Science (Vol. 94, Issue 8) Peer-Reviewed

  Aug. 2016385 words Author abstract, Rep...

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• Effects of Menthol Supplementation in Feedlot Cattle Diets on the Fecal Prevalence of Antimicrobial-Resistant Escherichia coli

  Authors:C. C. Aperce, R. Amachawadi, C. L. Van Bibber-Krueger, T. G. Nagaraja, H. M. Scott, J. Vinasco-Torre, et al.From:PLoS ONE (Vol. 11, Issue 12) Peer-Reviewed

  Dec. 28, 20165,662 words Article 1510LThe pool of antimicrobial resistance determinants in the environment and in the gut flora of cattle is a serious public health concern. In addition to being a source of human exposure, these bacteria can transfer...

• Escherichia coli O104 in Feedlot Cattle Feces: Prevalence, Isolation and Characterization

  Authors:Pragathi B. Shridhar, Lance W. Noll, Xiaorong Shi, Natalia Cernicchiaro, David G. Renter, J. Bai, et al.From:PLoS ONE (Vol. 11, Issue 3) Peer-Reviewed

  Mar. 24, 20167,241 words Report 1650LEscherichia coli O104:H4, an hybrid pathotype of Shiga toxigenic and enteroaggregative E. coli, involved in a major foodborne outbreak in Germany in 2011, has not been detected in cattle feces. Serogroup O104 with H...

• Liver abscesses in cattle: A review of incidence in Holsteins and of bacteriology and vaccine approaches to control in feedlot cattle

  Authors:R. G. Amachawadi and T. G. NagarajaFrom:Journal of Animal Science (Vol. 94, Issue 4) Peer-Reviewed

  Apr. 2016379 words Author abstract

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• A Comparison of Culture- and PCR-Based Methods to Detect Six Major Non-O157 Serogroups of Shiga Toxin-Producing Escherichia coli in Cattle Feces

  Authors:Lance W. Noll, Pragathi B. Shridhar, Diana M. Dewsbury, Xiaorong Shi, Natalia Cernicchiaro, David G. Renter, et al.From:PLoS ONE (Vol. 10, Issue 8) Peer-Reviewed

  Aug. 13, 20156,247 words Article 1550LCulture-based methods to detect the six major non-O157 (O26, O45, O103, O111, O121 and O145) Shiga toxin-producing E. coli (STEC) are not well established. Our objectives of this study were to develop a culture-based...

• Isolation of Fusobacterium necrophorum , Trueperella pyogenes , and Salmonella enterica from ruminal, ileal, and colonic epithelial tissues of finishing beef steers receiving different levels of dietary roughage with and without tylosin

  Authors:C. M. Meredith, C. P. Weiss, W. W. Gentry, R. G. Amachawadi, S. K. Narayanan, T. G. Nagaraja, et al.From:Journal of Animal Science (Vol. 95, Issue 8) Peer-Reviewed

  Aug. 2017 Author abstract, Rep...

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• Analysis of virulence potential of Escherichia coli O145 isolated from cattle feces and hide samples based on whole genome sequencing.

  Authors:Pragathi B. Shridhar, Jay N. Worley, Xin Gao, Xun Yang, Lance W. Noll, Xiaorong Shi, et al.From:PLoS ONE (Vol. 14, Issue 11) Peer-Reviewed

  Nov. 27, 20196,142 words Article 1560LEscherichia coli O145 serogroup is one of the big six non-O157 Shiga toxin producing E. coli (STEC) that causes foodborne illnesses in the United States and other countries. Cattle are a major reservoir of STEC, which...

• Whole genome shotgun sequencing revealed highly polymorphic genome regions and genes in Escherichia coli O157:H7 isolates collected from a single feedlot

  Authors:Xin Gao, Xun Yang, Lance Noll, Xiaorong Shi, Jay Worley, Marc Allard, et al.From:PLoS ONE (Vol. 13, Issue 8) Peer-Reviewed

  Aug. 28, 20187,055 words Report 1550LEscherichia coli serotype O157:H7 continues to pose a serious health threat to human beings. Cattle, a major reservoir of the pathogen, harbor E. coli O157:H7 in their gastrointestinal tract and shed variable...

• DNA microarray-based assessment of virulence potential of Shiga toxin gene-carrying Escherichia coli O104:H7 isolated from feedlot cattle feces

  Authors:Pragathi B. Shridhar, Isha R. Patel, Jayanthi Gangiredla, Lance W. Noll, Xiaorong Shi, Jianfa Bai, et al.From:PLoS ONE (Vol. 13, Issue 4) Peer-Reviewed

  Apr. 30, 20185,063 words Report 1520LEscherichia coli O104:H4, a hybrid pathotype reported in a large 2011 foodborne outbreak in Germany, has not been detected in cattle feces. However, cattle harbor and shed in the feces other O104 serotypes, particularly...

• Selection of fecal enterococci exhibiting tcrB-mediated copper resistance in pigs fed diets supplemented with copper

  Authors:R.G. Amachawadi, N.W. Shelton, W. Shi, J. Vinasco, S.S. Dritz, M.D. Tokach, et al.From:Applied and Environmental Microbiology (Vol. 77, Issue 16) Peer-Reviewed

  Aug. 201154 words Report

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