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United States Department of Agriculture

Agricultural Research Service

Related Topics

James E Wells (Jim)
Meats Safety & Quality Research
Microbiology

Phone: (402) 762-4174
Fax: (402) 762-4209

U.S. MEAT ANIMAL RESEARCH CENTER
STATE SPUR 18D
CLAY CENTER , NE 68933

Projects
Assessment of Genotypic and Phenotypic Factors for Foodborne Pathogen Transmission and Development of Intervention Strategies
Appropriated (D)
  Accession Number: 429923
UNDERSTANDING COMPOSITION OF BOVINE COLONIC MICROBIOTA AND PREDISPOSITION TO EHEC COLONIZATION AS COMPLEX POLYGENIC TRAITS IN BEEF CATTLE
Reimbursable (R)
  Accession Number: 421607

Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
Analysis of the gut microbiome in beef cattle and its association with feed intake, growth, and efficiency -
Myer, P.R., Wells, J., Smith, T.P., Kuehn, L.A., Freetly, H.C. 2016. Analysis of the gut microbiome in beef cattle and its association with feed intake, growth, and efficiency [abstract]. Journal of Animal Science. 94 (E-Supplement 5):211-212.
Effect of calcium hydroxide application to cattle feedlot pens on Escherichia coli O157:H7 and total E. coli in pen surface manure -
Berry, E.D., Wells, J., Arthur, T.M., Schmidt, J.W., Spiehs, M.J., Woodbury, B.L. 2016. Effect of calcium hydroxide application to cattle feedlot pens on Escherichia coli O157:H7 and total E. coli in pen surface manure [Abstract]. Journal of Food Protection. Supp. A(79):P2-122.
Effects of dietary protein concentration and ractopamine hydrochloride on performance and carcass characteristics of finishing beef steers Reprint Icon -
Hales, K.E., Shackelford, S.D., Wells, J., King, D.A., Pyatt, N.A., Freetly, H.C., Wheeler, T.L. 2016. Effects of dietary protein concentration and ractopamine hydrochloride on performance and carcass characteristics of finishing beef steers. Journal of Animal Science. 94(5):2097-2102. doi:10.2527/jas2015-0225
Differential gene expression in the duodenum, jejunum and ileum among crossbred beef steers with divergent gain and feed intake phenotypes -
Lindholm-Perry, A.K., Butler, A.R., Kern, R.J., Hill, R., Kuehn, L.A., Wells, J., Oliver, W.T., Hales, K.E., Foote, A.P., Freetly, H.C. 2016. Differential gene expression in the duodenum, jejunum and ileum among crossbred beef steers with divergent gain and feed intake phenotypes. Animal Genetics. 47(4):408-427. doi: 10.1111/age.12440.
Distillers by-product cattle diets enhance reduced sulfur gas fluxes from feedlot soils and manures -
Miller, D.N., Spiehs, M.J., Varel, V.H., Woodbury, B.L., Wells, J., Berry, E.D. 2016. Distillers by-product cattle diets enhance reduced sulfur gas fluxes from feedlot soils and manures. Journal of Environmental Quality. 45:1161-1168.
Lysozyme as an alternative to antibiotics in swine feed -
Oliver, W.T., Wells, J. 2016. Lysozyme as an alternative to antibiotics in swine feed [abstract]. Journal of Animal Science. 94(Supplement 2):138.
Gut bacterial communities and their association with production parameters in beef cattle -
Myer, P.R., Wells, J., Smith, T.P., Kuehn, L.A., Freetly, H.C. 2016. Gut bacterial communities and their association with production parameters in beef cattle [abstract]. Journal of Animal Science. 94(Supplement 2):179.
Ammonia, total reduced sulfides, and greenhouse gases of pine chip and corn stover bedding packs -
Spiehs, M.J., Brown-Brandl, T.M., Parker, D.B., Miller, D.N., Berry, E.D., Wells, J.E. 2016. Ammonia, total reduced sulfides, and greenhouse gases of pine chip and corn stover bedding packs. Journal of Environmental Quality. 45:630-637.
Microbial community profiles of the jejunum from steers differing in feed efficiency Reprint Icon -
Myer, P.R., Wells, J., Smith, T.P., Kuehn, L.A., Freetly, H.C. 2016. Microbial community profiles of the jejunum from steers differing in feed efficiency. Journal of Animal Science. 94(1):327-338. doi: 10.2527/jas2015-9839.
Relationship of glucocorticoids and hematological measures with feed intake, growth, and efficiency of finishing beef cattle Reprint Icon -
Foote, A.P., Hales, K.E., Tait Jr, R.G., Berry, E.D., Lents, C.A., Wells, J. E., Lindholm-Perry, A.K., Freetly, H.C. 2016. Relationship of glucocorticoids and hematological measures with feed intake, growth, and efficiency of finishing beef cattle. Journal of Animal Science. 94(1):275-283. doi: 10.2527/jas2015-9407
A meta-analysis of bacterial diversity in the feces of cattle Reprint Icon -
Wells, J., Kim, M. 2016. A meta-analysis of bacterial diversity in the feces of cattle. Current Microbiology. 72:145-15. doi:10.1007/s00284-015-0931-6.
Replacement for antibiotics: Lysozyme -
Oliver, W.T., Wells, J. 2015. Replacement for antibiotics: Lysozyme. Proceedings of the Western Nutrition Conference, September 28-29, 2015, Winnipeg, Manitoba, Canada. p. 63-72.
Reducing foodborne pathogen persistence and transmission in animal production environments: Challenges and Opportunities -
Cecum microbial communities from steers differing in feed efficiency Reprint Icon -
Myer, P.R., Wells, J.E., Smith, T.P.L., Kuehn, L.A., Freetly, H.C. 2015. Cecum microbial communities from steers differing in feed efficiency. Journal of Animal Science. 93(11):5327-5340. doi: 10.2527/jas2015-9415
Dissemination of Escherichia coli O157:H7 from a cattle feedlot: effect of proximity on contamination of leafy greens, bioaerosols, and pest flies -
Berry, E.D., Wells, J., Durso, L.M., Bono, J.L., Friesen, K.M., Suslow, T.V., Millner, P.D. 2015. Dissemination of Escherichia coli O157:H7 from a cattle feedlot: effect of proximity on contamination of leafy greens, bioaerosols, and pest flies.[abstract] ASA-CSSA-SSSA Annual Meeting Abstracts. 195-6. Available: https://scisoc.confex.com/crops/2015am/webprogram/Paper91330.html
Microbial community profiles of the colon from steers differing in feed efficiency Reprint Icon -
Myer, P.R., Wells, J., Smith, T.P., Kuehn, L.A., Freetly, H.C. 2015. Microbial community profiles of the colon from steers differing in feed efficiency. SpringerPlus. 4:454.
Lysozyme as an alternative to growth promoting antibiotics in swine production Reprint Icon -
Oliver, W.T., Wells, J. 2015. Lysozyme as an alternative to growth promoting antibiotics in swine production. Journal of Animal Science and Biotechnology. 6:35.
Rumen microbiome from steers differing in feed efficiency Reprint Icon -
Myer, P.R., Smith, T.P., Wells, J., Kuehn, L.A., Freetly, H.C. 2015. Rumen microbiome from steers differing in feed efficiency. PLoS One. 10(6):e0129174.
Effect of lysozyme or antibiotics on fecal zoonotic pathogens in nursery pigs Reprint Icon -
Wells, J., Berry, E.D., Kalchayanand, N., Rempel, L.A., Kim, M., Oliver, W.T. 2015. Effect of lysozyme or antibiotics on fecal zoonotic pathogens in nursery pigs. Journal of Applied Microbiology. 118:1489-1497.
The effect of bovine fecal microbiome on Escherichia coli O157:H7 prevalence -
Kim, M., Kuehn, L.A., Bono, J.L., Berry, E.D., Kalchayanand, N., Freetly, H.C., Benson, A.K., Wells, J. 2015. The effect of bovine fecal microbiome on Escherichia coli O157:H7 prevalence [abstract]. 2015 Congress on Gastrointestinal Function, 2015 April 13-15, Chicago, IL. p. 34.
Methane production and methanogen levels in steers that differ in residual gain Reprint Icon -
Freetly, H.C., Lindholm-Perry, A.K., Hales, K.E., Brown-Brandl, T.M., Kim, M.S., Myer, P.R., Wells, J. 2015. Methane production and methanogen levels in steers that differ in residual gain. Journal of Animal Science. 93(5):2375-2381.
Beef cattle metabiomes and their relationships with economically important phenotypes -
Myer, P.R., Wells, J., Smith, T.P., Kuehn, L.A., Freetly, H.C. 2015. Beef cattle metabiomes and their relationships with economically important phenotypes [abstract]. Journal of Animal Science. 93(Supplement 2):7.
Characterizing the microbiome across the gastrointestinal tract from steers differing in feed efficiency -
Myer, P.R., Wells, J., Smith, T.P., Kuehn, L.A., Freetly, H.C. 2015. Characterizing the microbiome across the gastrointestinal tract from steers differing in feed efficiency. Plant and Animal Genome XXIII Conference, January 10-14, 2015, San Diego, California. Abstract No. W288.
Effect of proximity to a cattle feedlot on Escherichia coli O157:H7 contamination of leafy greens and evaluation of the potential for airborne transmission Reprint Icon -
Berry, E.D., Wells, J., Bono, J.L., Woodbury, B.L., Kalchayanand, N., Norman, K.N., Suslow, T.V., Lopez-Velasco, G., Millner, P.D. 2015. Effect of proximity to a cattle feedlot on Escherichia coli O157:H7 contamination of leafy greens and evaluation of the potential for airborne transmission. Applied and Environmental Microbiology. 81(3):1101-1110.
Evaluation of essential oils in beef cattle manure slurries and applications of select compounds to beef feedlot surfaces to control zoonotic pathogens Reprint Icon -
Wells, J., Berry, E.D., Guerini, M., Varel, V.H. 2015. Evaluation of essential oils in beef cattle manure slurries and applications of select compounds to beef feedlot surfaces to control zoonotic pathogens. Journal of Applied Microbiology. 118;295-304.
Lysozyme as an alternative to antibiotics improves performance in nursery pigs during an indirect immune challenge Reprint Icon -
Oliver, W.T., Wells, J., Maxwell, C.W. 2014. Lysozyme as an alternative to antibiotics improves performance in nursery pigs during an indirect immune challenge. Journal of Animal Science. 92(11):4927-4934.
Effects of feeding dry-rolled corn-based diets with and without wet distillers grains with solubles and zilpaterol hydrochloride on performance characteristics, and heat stress in finishing beef steers Reprint Icon -
Hales, K.E., Shackelford, S.D., Wells, J., King, D.A., Hayes, M., Brown-Brandl, T.M., Kuehn, L.A., Freetly, H.C., Wheeler, T.L. 2014. Effects of feeding dry-rolled corn-based diets with and without wet distillers grains with solubles and zilpaterol hydrochloride on performance characteristics, and heat stress in finishing beef steers. Journal of Animal Science. 92(9):4023-4033.
Fecal microbiome in the bovine animal -
Wells, J., Kim, M.S., Kuehn, L.A., Bono, J.L. 2014. Fecal microbiome in the bovine animal. In: Proceedings of the Americian Meat Science Association. Reciprocal Meat Conference, 6/15-6/18/2014, Madison Wisconsin. http://www.meatscience.org/.
Persistence of Escherichia coli O157:H7 in feces from cattle fed diets with or without wet distillers grains with solubles -
Berry, E.D., Wells, J., Varel, V.H. 2014. Persistence of Escherichia coli O157:H7 in feces from cattle fed diets with or without wet distillers grains with solubles. Journal of Animal Science 92(E-Suppl.2):525.
Effect of proximity to a cattle feedlot on Escherichia coli O157:H7 contamination of leafy greens and evaluation of the potential for bioaerosol and pest fly transmission -
Berry, E.D., Wells, J., Durso, L.M., Bono, J.L., Friesen, K.M., Woodbury, B.L., Kalchayanand, N., Norman, K.N., Suslow, T.V., Lopez-Velasco, G., Millner, P.D. 2014. Effect of proximity to a cattle feedlot on Escherichia coli O157:H7 contamination of leafy greens and evaluation of the potential for bioaerosol and pest fly transmission. [Abstract]. Western Food Safety Summit, May 8-9, 2014, Salinas, CA. poster session.
Effect of lysozyme or antibiotics on fecal zoonotic pathogens in nursery pigs -
Wells, J., Berry, E.D., Kalchayanand, N., Rempel, L.A., Oliver, W.T. 2014. Effect of lysozyme or antibiotics on fecal zoonotic pathogens in nursery pigs. Journal of Animal Science 92(E-Suppl.2):529.
Lysozyme as an alternative to antibiotics improves growth performance and tumor necrosis factor-a levels during an indirect immune challenge -
Oliver, W.T., Wells, J., Maxwell, C.V. 2014. Lysozyme as an alternative to antibiotics improves growth performance and tumor necrosis factor-a levels during an indirect immune challenge [abstract]. Journal of Animal Science 92(Supplement 2):50.
Escherichia coli O157:H7, diet, and fecal microbiome in beef cattle -
Wells, J., Kim, M.S., Bono, J.L., Kuehn, L.A., Benson, A.K. 2014. Escherichia coli O157:H7, diet, and fecal microbiome in beef cattle. In: Proceedings of American Society of Animal Science, Meat Science and Muscle Biology Symposium. Journal of Animal Science. 92:1345-1355.
Investigation of bacterial diversity in the feces of cattle fed different diets Reprint Icon -
Kim, M.S., Kim, J., Kuehn, L.A., Bono, J.L., Berry, E.D., Kalchayanand, N., Freetly, H.C., Benson, A.K., Wells, J. 2014. Investigation of bacterial diversity in the feces of cattle fed different diets. Journal of Animal Science. 92:683-694.
Development and model testing of anti-mortem screening methodology to predict prescribed drug withholds in heifers -
Jones, S., Salter, R.S., Goldsmith, T., Quintana, J., Rapnicki, P., Shuck, K., Wells, J., Schneider, M.J., Griffin, D. 2014. Development and model testing of anti-mortem screening methodology to predict prescribed drug withholds in heifers. Journal of Food Protection. 77(2):292-298.
Use of wood-based materials in beef bedded manure packs: 2. Effect on odorous volatile organic compounds, odor activity value, Escherichia coli, and nutrient concentrations -
Spiehs, M.J., Brown-Brandl, T.M., Berry, E.D., Wells, J.E., Parker, D.B., Miller, D.N., Jaderborg, J.P., DiCostanzo, A. 2014. Use of wood-based materials in beef bedded manure packs: 2. Effect on odorous volatile organic compounds, odor activity value, Escherichia coli, and nutrient concentrations. Journal of Environmental Quality. Special Section. Livestock GraceNet. 43:1195-1206. DOI: 10.2134/JEQ2013.05.0165.
Use of wood-based materials in beef bedded manure packs: 1. Effect on ammonia, total reduced sulfide, and greenhouse gas concentrations -
Spiehs, M.J., Brown-Brandl, T.M., Parker, D.B., Miller, D.N., Jaderborg, J.P., DiCostanzo, A., Berry, E.D., Wells, J.E. 2014. Use of wood-based materials in beef bedded manure packs: 1. Effect on ammonia, total reduced sulfide, and greenhouse gas concentrations. Journal of Environmental Quality. Special Section. Livestock GraceNet. 43:1187-1194. DOI: 10.2134/JEQ2013.05.0164.
Diet, fecal microbiome and Escherichia coli O157:H7 shedding in beef Cattle -
Wells, J., Kim, M.S., Bono, J.L., Kuehn, L.A., Benson, A.K. 2013. Diet, fecal microbiome and Escherichia coli O157:H7 shedding in beef cattle.[abstract] Journal of Animal Science Supplement. 96(E-Supplement 2):631. Abstract 577.
Investigation of microbial diversity in the feces of cattle fed different diets -
Kim, M.S., Kim, J., Kuehn, L.A., Bono, J.L., Berry, E.D., Kalchayanand, N., Freetly, H.C., Benson, A.K., Wells, J. 2013. Investigation of microbial diversity in the feces of cattle fed different diets.[abstract] Journal of Animal Science Supplement. 91 (E-Supplement 2): 235.
Influence of dry matter intake, dry matter digestibility, and feeding behavior on body weight gain of beef steers Reprint Icon -
Davis, M.P., Freetly, H.C., Kuehn, L.A., Wells, J. 2014. Influence of dry matter intake, dry matter digestibility, and feeding behavior on body weight gain of beef steers. Journal of Animal Science. 92(7):3018-3025.
Diversity of microbiomes in beef cattle -
Durso, L.M., Wells, J., Kim, M.S. 2013. Diversity of microbiomes in beef cattle. In: Nelson, K., editor. Encyclopedia of Metagenomics. Springer Reference (www.springerreference.com). Berlin/Heidelberg, Germany: Springer-Verlag. Available: http://www.springerreference.com/docs/html/chapterdbid/333718.html.
Lysozyme as an alternative to antibiotics improves growth performance and small intestinal morphology in nursery pigs Reprint Icon -
Oliver, W.T., Wells, J. 2013. Lysozyme as an alternative to antibiotics improves growth performance and small intestinal morphology in nursery pigs. Journal of Animal Science. 91(7):3129-3136.
Ruminal methanogens in steers that are negative or positive for residual gain -
Freetly, H., Wells, J., Kim, M., Hales, K., Lindholm-Perry, A. 2013. Ruminal methanogens in steers that are negative or positive for residual gain [abstract]. Journal of Animal Science. 91(E-Supplement 2):437.
Effect of proximity to a cattle feedlot on the occurrence of Escherichia coli 0157:H7-positive pest flies in a leafy green crop -
Berry, E.D., Wells, J., Durso, L.M., Bono, J.L., Friesen, K.M., Woodbury, B.L., Suslow, T.V., Lopez-Velasco, G., Millner, P.D. 2013. Effect of proximity to a cattle feedlot on the occurrence of Escherichia coli 0157:H7-positive pest flies in a leafy green crop. International Association for Food Protection Proceedings. [abstract]P3-132 Page No 65.
Fate of naturally occurring Escherichia coli O157:H7 and other zoonotic pathogens during minimally managed bovine feedlot manure composting processes Reprint Icon -
Berry, E.D., Millner, P.D., Wells, J., Kalchayanand, N., Guerini, M.N. 2013. Fate of naturally occurring Escherichia coli O157:H7 and other zoonotic pathogens during minimally managed bovine feedlot manure composting processes. Journal of Food Protection. 76(8):1308-1321.
Effects of antimicrobials fed as dietary growth promoters on faecal shedding of Campylobacter, Salmonella and shiga-toxin producing Escherichia coli in swine Reprint Icon -
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.
Effect of bedding materials on concentration of odorous compounds and Escherichia coli in beef cattle bedded manure packs -
Spiehs, M.J., Brown Brandl, T.M., Parker, D.B., Miller, D.N., Berry, E.D., Wells, J.E. 2013. Effect of bedding materials on concentration of odorous compounds and Escherichia coli in beef cattle bedded manure packs. Journal of Environmental Quality. 42(1):65-75.
Isolation and characterization of Clostridium difficile associated with beef cattle and commercially produced ground beef Reprint Icon -
Kalchayanand, N., Arthur, T.M., Bosilevac, J.M., Harhay, D.M., Shackelford, S.D., Wells, J., Wheeler, T.L., Koohmaraie, M. 2013. Isolation and characterization of Clostridium difficile associated with beef cattle and commercially produced ground beef. Journal of Food Protection. 76(2):256-264.
Chromogenic agar medium for detection and isolation of Escherichia coli serogroups O26,O45,O103,O111,O121, and O145 from fresh beef and cattle feces Reprint Icon -
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.
Results of anti-mortem screening methodology to predict prescribed drug withholding periods for flunixin and ceftiofur in heifers -
Salter, R., Jones, S., Wells, J., Griffin, D., Shuck, K., Goldsmith, T., Rapnicki, P. 2012. Results of anti-mortem screening methodology to predict prescribed drug withholding periods for flunixin and ceftiofur in heifers. American Association of Bovine Practitioners Proceedings. September 20-22, 2012. Montreal, Canada. Research Summary No. 225.
Comparison of bacterial communities in faeces of beef cattle fed diets containing corn and wet distillers grain with solubles Reprint Icon -
Durso, L.M., Wells, J., Harhay, G.P., Rice, W.C., Kuehn, L.A., Bono, J.L., Shackelford, S.D., Wheeler, T.L., Smith, T.P. 2012. Comparison of bacterial communities in faeces of beef cattle fed diets containing corn and wet distillers grain with solubles. Letters in Applied Microbiology. 55(2):109-14. DOI: 10.1111/J.1472-765X.2012.03265.X.
Rumen and cecum methane emissions between steers that are either negative or positive for residual gain -
Freetly, H.C., Hales, K.E., Wells, J. 2012. Rumen and cecum methane emissions between steers that are either negative or positive for residual gain [abstract]. Journal of Animal Science. 90(Suppl. 3):478.
Methane emissions by goats consuming Sericea lespedeza at different feeding frequencies -
Puchala, R., Animut, G., Patra, A.K., Detweiler, G.D., Wells, J., Varel, V.H., Sahlu, T., Goetsch, A.L. 2012. Methane emissions by goats consuming Sericea lespedeza at different feeding frequencies. Animal Feed Science And Technology. 175:76-84.
Development and model testing of anti-mortem screening methodology to predict prescribed drug withholds in heifers -
Salter, R., Jones, S., Goldsmith, T., Quintana, J., Rapnicki, P., Shuck, K., Wells, J., Griffin, D. 2012. Development and model testing of anti-mortem screening methodology to predict prescribed drug withholds in heifers. In: Proceedings of International Association for Food Protection, July 22-25, 2012, Providence, Rhode Island. Poster P3-13.
Effects of different fresh-cut forages and their hays on feed intake, digestibility, heat production, and ruminal methane emission by Boer x Spanish goats -
Puchala, R., Animut, G., Patra, A.K., Detweiler, G.D., Wells, J., Varel, V.H., Sahlu, T., Goetsch, A.L. 2012. Effects of different fresh-cut forages and their hays on feed intake, digestibility, heat production, and ruminal methane emission by Boer x Spanish goats. Journal of Animal Science. 90(8):2754-2762.
Effect of anaerobic digestion temperature on odour, coliforms and chlortetracycline in swine manure or monensin in cattle manure -
Varel, V.H., Wells, J., Shelver, W.L., Rice, C., Armstrong, D.L., Parker, D.B. 2012. Effect of anaerobic digestion temperature on odour, coliforms and chlortetracycline in swine manure or monensin in cattle manure. Journal of Applied Microbiology. 112:705-715.
Granulated lysozyme as an alternative to antibiotics improves growth performance and small intestinal morphology of 10-day-old pigs -
May, K.D., Wells, J., Maxwell, C.V., Oliver, W.T. 2012. Granulated lysozyme as an alternative to antibiotics improves growth performance and small intestinal morphology of 10-day-old pigs. Journal of Animal Science. 90(4):1118-1125.
Soil solarization reduces Escherichia coli O157:H7 and total Escherichia coli on cattle feedlot pen surfaces -
Berry, E.D., Wells, J. 2012. Soil solarization reduces Escherichia coli O157:H7 and total Escherichia coli on cattle feedlot pen surfaces. Journal of Food Protection. 75(1):7-13.
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 -
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.
Chapter 9: Symbiosis of plants, animals, and microbes -
Wells, J., Varel, V.H. 2011. Chapter 9: Symbiosis of plants, animals, and microbes. In: Pond, W. G., Bazer, F. W., Rollin, B. E. (ed). Animal Welfare in Animal Agriculture: Husbandry, Stewardship and Sustainability. New York: CRC Press. p. 185-203.
Reduction in dietary wet distillers grains alters Escherichia coli 0157:H7 in feces of cattle -
Wells, J., Shackelford, S.D., Berry, E.D., Kalchayanand, N., Bosilevac, J.M., Wheeler, T.L. 2011. Reduction in dietary wet distillers grains alters Escherichia coli 0157:H7 in feces of cattle. In: Proceedings of the 2011 Congress on Gastrointestinal Function, April 18-20, 2011, Chicago, Illinois.
Soil solarization reduces Escherichia coli O157:H7 on cattle feedlot pen surfaces -
Berry, E.D., Wells, J. 2011. Soil solarization reduces Escherichia coli O157:H7 on cattle feedlot pen surfaces [abstract]. Journal of Food Protection. 74(Supplement A):80.
Environmental conditions in beef deep-bedded monoslope facilities: a descriptive study -
Spiehs, M.J., Woodbury, B.L., Doran, B.E., Eigenberg, R.A., Kohl, K.D., Varel, V.H., Berry, E.D., Wells, J. 2011. Environmental conditions in beef deep-bedded monoslope facilities: a descriptive study. Transactions of the ASABE. 54(2):663-673.
Environmental conditions in beef deep-bedded mono-slope facilities -
Spiehs, M.J., Woodbury, B.L., Doran, B., Eigenberg, R.A., Kohl, K., Varel, V.H., Berry, E.D., Wells, J. 2010. Environmental conditions in beef deep-bedded mono-slope facilities. Iowa State University Animal Industry Report. Leaflet Number R2582.
Granulated lysozyme as an alternative to antibiotics improves growth performance and small intestinal morphology of 10-day-old pigs -
May, K.D., Wells, J., Maxwell, C.V., Oliver, W.T. 2011. Granulated lysozyme as an alternative to antibiotics improves growth performance and small intestinal morphology of 10-day-old pigs [abstract]. Journal of Animal Science Supplement. 89(E-Supplement 2):71-72. Abstract # 83.
Association of single nucleotide polymorphisms in the ANKRA2 and CD180 genes with bovine respiratory disease and presence of Mycobacterium avium subsp. paratuberculosis -
Casas, E., Garcia, M.D., Wells, J., Smith, T.P.L. 2011. Association of single nucleotide polymorphisms in the ANKRA2 and CD180 genes with bovine respiratory disease and presence of Mycobacterium avium subsp. paratuberculosis. Animal Genetics. 42:571-577.
Association of single nucleotide polymorphisms in the ANKRA2 and CD180 genes with bovine respiratory disease and presence of Mycobacterium avium subsp. paratuberculosis -
Casas, E., Garcia, M.D., Wells, J., Smith, T.P. 2011. Association of single nucleotide polymorphisms in the ANKRA2 and CD180 genes with bovine respiratory disease and presence of Mycobacterium avium subsp. paratuberculosis [abstract]. Plant and Animal Genome XIX Conference. Poster No. P193.
Genomics of Disease in Beef Cattle -
Casas, E., Kuehn, L.A., Snelling, W.M., Wells, J. 2010. Genomics of Disease in Beef Cattle. Proceedings of the 9th World Congress on Genetics Applied to Livestock Production, Leipzig, Germany. August 1-6, 2010. CD-ROM Communication No. 0125.
Comparison of cattle fecal communities from animals fed diets containing corn and distiller's grains -
Durso, L.M., Harhay, G.P., Wells, J., Bono, J.L., Riethoven, J.M., Shackelford, S.D., Wheeler, T.L., Smith, T.P. 2010. Comparison of cattle fecal communities from animals fed diets containing corn and distiller's grains. PS.25.018, Abstract #393A. Abstract for Microbial Ecology International Symposium, Seattle, WA, Aug. 22-27, 2010. Abstract Book, Pg. 128
Escherichia coli O157:H7: Recent Advances in Research on Occurrence, Transmission, and Control in Cattle and the Production Environment Reprint Icon -
Berry, E.D., Wells, J. 2010. Escherichia coli O157:H7: Recent Advances in Research on Occurrence, Transmission, and Control in Cattle and the Production Environment. In: Taylor, Steve L. Advances in Food and Nutrition Research. Volume 60. Burlington: Elsevier. p. 67-118.
Soil Versus Pond Ash Surfacing of Feedlot Pens: Occurrence of Escherichia coli O157:H7 in Cattle and Persistence in Manure Reprint Icon -
Berry, E.D., Wells, J., Arthur, T.M., Woodbury, B.L., Nienaber, J.A., Brown Brandl, T.M., Eigenberg, R.A. 2010. Soil Versus Pond Ash Surfacing of Feedlot Pens: Occurrence of Escherichia coli O157:H7 in Cattle and Persistence in Manure. Journal of Food Protection. 73(7):1269-1277.
Effects of Dietary Antimicrobials on Fecal Shedding of Campylobacter, Salmonella, and Shiga-toxin Producing Escherichia coli in Production Swine -
Wells, J., Kalchayanand, N., Berry, E.D., Oliver, W.T. 2010. Effects of Dietary Antimicrobials on Fecal Shedding of Campylobacter, Salmonella, and Shiga-toxin Producing Escherichia coli in Production Swine [abstract]. Journal of Animal Science. 88 (E-Supplement 2):616. (Abstract #W102).
Odor Production and Escherichia coli Concentrations in Manure Slurries of Feedlot Steers Fed 0 or 40% Corn Wet Distillers Grains with Solubles -
Varel, V.H., Wells, J., Berry, E.D., Miller, D.N. 2010. Odor Production and Escherichia coli Concentrations in Manure Slurries of Feedlot Steers Fed 0 or 40% Corn Wet Distillers Grains with Solubles. In: Proceedings of the 110th General Meeting of the American Society for Microbiology, May 23-27, 2010, San Diego, CA. 2010 CDROM.
Manure odor potential and Escherichia coli concentrations in manure slurries of feedlot steers fed 40% corn wet distillers grains Reprint Icon -
Varel, V.H., Wells, J., Berry, E.D., Miller, D.N. 2010. Manure odor potential and Escherichia coli concentrations in manure slurries of feedlot steers fed 40% corn wet distillers grains. Journal of Environmental Quality. 39(4):1498-1506.
Evaluation of a Direct-Fed Microbial Product Effect on the Prevalence and Load of Escherichia coli O157:H7 in Feedlot Cattle -
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.
Evaluation of the Fate of Naturally Occurring Escherichia coli O157:H7 During Bovine Manure Composting Processes -
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.
The Effects of Dietary Additives on Faecal Levels of Lactobacillus spp., Coliforms, and Escherichia coli, and Faecal Prevalence of Salmonella spp. and Campylobacter spp. in U.S. Production Nursery Swine -
Wells, J., Oliver, W.T., Yen, J. 2010. The Effects of Dietary Additives on Faecal Levels of Lactobacillus spp., Coliforms, and Escherichia coli, and Faecal Prevalence of Salmonella spp. and Campylobacter spp. in U.S. Production Nursery Swine. Journal of Applied Microbiology. 108:306-314.
Methane Emission by Goats Consuming Condensed Tannin-containing Forage at Different Frequencies -
Puchala, R., Animut, G., Goetsch, A.L., Sahlu, T., Varel, V.H., Wells, J. 2009. Methane Emission by Goats Consuming Condensed Tannin-containing Forage at Different Frequencies [abstract]. Journal of Animal Science 87 (E-Supplement 2):483.
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 -
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.
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 -
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.
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 Reprint Icon -
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.
Prevalence of Clostridium difficile from Commercial Beef Processing Plants in the United States -
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.
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 -
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.
Impacts of Individual Animal Response to Heat and Handling Stresses on Escherichia coli and E. coli O157:H7 Fecal Shedding by Feedlot Cattle -
Brown Brandl, T.M., Berry, E.D., Wells, J., Arthur, T.M., Nienaber, J.A. 2009. Impacts of Individual Animal Response to Heat and Handling Stresses on Escherichia coli and E. coli O157:H7 Fecal Shedding by Feedlot Cattle. Foodborne Pathogens and Disease. 6(7):855-864.
Odorant production and persistence of Escherichia coli in manure slurries from cattle fed zero, twenty, forty, or sixty percent wet distillers grains with solubles -
Varel, V.H., Wells, J., Berry, E.D., Spiehs, M.J., Miller, D.N., Ferrell, C.L., Shackelford, S.D., Koohmaraie, M. 2008. Odorant production and persistence of Escherichia coli in manure slurries from cattle fed zero, twenty, forty, or sixty percent wet distillers grains with solubles. Journal of Animal Science 86:3617-3627.
A direct plating method for estimating populations of Escherichia coli 0157 in bovine manure and manure-based materials -
Berry, E.D., Wells, J. 2008. A direct plating method for estimating populations of Escherichia coli 0157 in bovine manure and manure-based materials. Journal of Food Protection 71(11):2233-2238.
The impact of stress level on fecal bacteria and pathogen shedding in feedlot cattle. Reprint Icon -
Brown Brandl, T.M., Berry, E.D., Wells, J., Arthur, T.M., Nienaber, J.A. 2008. The impact of stress level on fecal bacteria and pathogen shedding in feedlot cattle. American Society of Agricultural and Biological Engineers. Paper No. 084178. St. Joseph, MI:ASABE.
Ruminal Methane Emissions by Goats Consuming Dry Hay of Condensed Tannin-Containing Lespedeza With or Without Polyethylene Glycol, Alfalfa, or Sorghum-Sudangrass -
Puchala, R., Animut, G., Goetsch, A.L., Patra, A.K., Sahlu, T., Varel, V.H., Wells, J. 2008. Ruminal Methane Emissions by Goats Consuming Dry Hay of Condensed Tannin-Containing Lespedeza With or Without Polyethylene Glycol, Alfalfa, or Sorghum-Sudangrass [abstract]. In: Proceedings of 9th International Conference on Goats, Aug. 31 - Sept. 5, 2008, Queretaro, Mexico. Abstract 73, pp. 98-99.
Prevalence and Characterization of Salmonella in Bovine Lymph Nodes Potentially Destined for Use in Ground Beef -
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.
Odorant production and persistence of generic E. coli in manure slurries from cattle fed 0, 20, 40, and 60% wet distillers grains with solubles (WDGS). -
Varel, V.H., Wells, J., Berry, E.D., Spiehs, M.J., Miller, D.N., Ferrell, C.L., Shackelford, S.D., Koohmaraie, M. 2008. Odorant production and persistence of generic E. coli in manure slurries from cattle fed 0, 20, 40, and 60% wet distillers grains with solubles (WDGS)[abstract]. Journal of Animal Science 86(E-Suppl. 2)/Journal of Dairy Science 91(E-Suppl. 1):325.
Viability of zoonotic pathogens Escherichia coli and Salmonella in swine manure slurries with and without a urease inhibitor and thymol -
Wells, J., Varel, V.H. 2008. Viability of zoonotic pathogens Escherichia coli and Salmonella in swine manure slurries with and without a urease inhibitor and thymol. Letters in Applied Microbiology 46:477-482.
Methane emission by goats consuming diets with different levels of condensed tannins from lespedeza -
Animut, G., Puchala, R., Goetsch, A.L., Patra, A.K., Sahlu, T., Varel, V.H., Wells, J. 2008. Methane emission by goats consuming diets with different levels of condensed tannins from lespedeza. Animal Feed Science and Technology 144:212-227.
Methane emission by goats consuming different sources of condensed tannins -
Animut, G., Puchala, R., Goetsch, A.L., Patra, A.K., Sahlu, T., Varel, V.H., Wells, J. 2008. Methane emission by goats consuming different sources of condensed tannins. Animal Feed Science and Technology 144:228-241.
Incidence and persistence of zoonotic bacterial and protozoan pathogens in a beef cattle feedlot runoff control - vegetative treatment system -
Berry, E.D., Woodbury, B.L., Nienaber, J.A., Eigenberg, R.A., Thurston Enriquez, J.A., Wells, J. 2007. Incidence and persistence of zoonotic bacterial and protozoan pathogens in a beef cattle feedlot runoff control - vegetative treatment system. Journal of Environmental Quality 36:1873-1882.
Effect of N-(n-butyl) Phosphoric Triamide (NPBT) and a Linalool or Pine Oil Extract on Urea Concentration, Odorants, and Coliform Bacteria in Cattle Feedlot Manure -
Varel, V.H., Wells, J., Berry, E.D. 2007. Effect of N-(n-butyl) Phosphoric Triamide (NPBT) and a Linalool or Pine Oil Extract on Urea Concentration, Odorants, and Coliform Bacteria in Cattle Feedlot Manure. In CDRom Proceedings: American Society of Agri Engineers Special Meetings, Sept. 15-19, 2007, Broomfield, CO. CDRom 701P0907cd.
COMBINATION OF A UREASE INHIBITOR AND A PLANT ESSENTIAL OIL TO CONTROL COLIFORM BACTERIA, ODOUR PRODUCTION, AND AMMONIA LOSS FROM CATTLE WASTE -
Varel, V.H., Wells, J., Miller, D.N. 2007. Combination of a urease inhibitor and a plant essential oil to control coliform bacteria, odour production, and ammonia loss from cattle waste. Journal of Applied Microbiology 102:472-477. doi:10.1111/j.1365-2672.2006.03120.x
INFLUENCE OF THYMOL AND A UREASE INHIBITOR ON COLIFORM BACTERIA, ODOR, UREA, AND METHANE FROM A SWINE PRODUCTION MANURE PIT -
Varel, V.H., Wells, J. 2007. Influence of thymol and a urease inhibitor on coliform bacteria, odor, urea, and methane from a swine production manure pit. Journal of Environmental Quality 36(3):773-779.
INFLUENCE OF GENOTYPE AND DIET ON STEER PERFORMANCE, MANURE ODOR, AND CARRIAGE OF PATHOGENIC AND OTHER FECAL BACTERIA. II. PATHOGENIC AND OTHER FECAL BACTERIA -
Berry, E.D., Wells, J.E., Archibeque, S.L., Ferrell, C.L., Freetly, H.C., Miller, D.N. 2006. Influence of genotype and diet on steer performance, manure odor, and carriage of pathogenic and other fecal bacteria. II. Pathogenic and other fecal bacteria. Journal of Animal Science. 84:2523-2532.
INFLUENCE OF GENOTYPE AND DIET ON STEER PERFORMANCE, MANURE ODOR, AND CARRIAGE OF PATHOGENIC AND OTHER FECAL BACTERIA. III. ODOROUS COMPOUND PRODUCTION -
Miller, D.N., Berry, E.D., Wells, J.E., Ferrell, C.L., Archibeque, S.L., Freetly, H.C. 2006. Influence of genotype and diet on steer performance, manure odor, and carriage of pathogenic and other fecal bacteria. III. Odorous compound production. Journal of Animal Science. 84:2533-2545.
METHANE EMISSION BY GOATS CONSUMING DIETS WITH DIFFERENT LEVELS OF CONDENSED TANNIN-CONTAINING LESPEDEZA AND SORGHUM-SUDANGRASS -
Animut, G., Puchala, R., Goetsch, A., Sahlu, T., Detweiler, G., Patra, A., Varel, V., Wells, J. 2006. Methane emission by goats consuming diets with different levels of condensed tannin-containing lespedeza and sorghum-sudangrass [abstract]. Journal of Animal Science 84(Suppl. 1):26.
INFLUENCE OF THYMOL ON COLIFORM BACTERIA, VFA, AND METHANE PRODUCTION FROM PULL-PLUG SWINE MANURE PITS -
Varel, V.H., Wells, J. 2006. Influence of thymol on coliform bacteria, VFA, and methane production from pull-plug swine manure pits [abstract]. Journal of Animal Science 84(Suppl. 1):292-293.
EFFECTS OF ESSENTIAL OILS ON VIABILITY OF ESCHERICHIA COLI O157:H7 IN TREATED BEEF CATTLE MANURE SLURRIES AND ON PREVALENCE FROM TREATED FEEDLOT SURFACES -
Wells, J., Berry, E.D., Varel, V.H. 2006. Effects of essential oils on viability of Escherichia coli O157:H7 in treated beef cattle manure slurries and on prevalence from treated feedlot surfaces [abstract]. Journal of Animal Science 84(Suppl 1):356-357.
EFFECTS OF COMMON FORAGE PHENOLIC ACIDS ON ESCHERICHIA COLI O157:H7 VIABILITY IN BOVINE FECES -
Wells, J.E., Berry, E.D., Varel, V.H. 2005. Effects of common forage phenolic acids on Escherichia coli O157:H7 viability in bovine feces. Applied and Environmental Microbiology. 71(12)7974-7979.
VIABILITY OF SALMONELLA ENTERICA TYPHIMURIUM AND ESCHERICHIA COLI O157:H7 IN FINISHING SWINE MANURE SLURRIES WITH AND WITHOUT A UREASE INHIBITOR AND A PLANT ESSENTIAL OIL -
Wells, J., Varel, V.H. 2005. Viability of Salmonella enterica Typhimurium and Escherichia coli O157:H7 in finishing swine manure slurries with and without a urease inhibitor and a plant essential oil [abstract]. Journal of Animal Science. 83(Supplement 1):301-302.
THE EFFECTS OF LARCH EXTRACT ON PERFORMANCE AND FECAL FLORA IN NURSERY PIGS -
Wells, J., Yen, J. 2005. The effects of larch extract on performance and fecal flora in nursery pigs. Proceedings of the 2005 Conference on Gastrointestinal Function. p. 18.
PLANT OILS AND UREASE INHIBITORS AS SOLUTIONS FOR ENVIRONMENTAL ISSUES ASSOCIATED WITH CONFINED ANIMAL FEEDING OPERATIONS -
Varel, V.H., Wells, J. 2005. Plant oils and urease inhibitors as solutions for environmental issues associated with confined animal feeding operations. Proceedings of the 2005 Conference on Gastrointestinal Function. p. 28.
IMPACT OF DRIED SKIM MILK IN PRODUCTION DIETS ON LACTOBACILLUS AND PATHOGENIC BACTERIAL SHEDDING IN GROWING-FINISHING SWINE -
Wells, J.E., Yen, J.T., Miller, D.N. 2005. Impact of dried skim milk in production diets on lactobacillus and pathogenic bacterial shedding in growing-finishing swine. Journal of Applied Microbiology 99:400-407.
DRIED SKIM MILK AS A REPLACEMENT FOR SOYBEAN MEAL IN GROWING-FINISHING DIETS: EFFECTS ON GROWTH PERFORMANCE, APPARENT TOTAL-TRACT NITROGEN DIGESTIBILITY, URINARY AND FECAL NITROGEN EXCRETION, AND CARCASS TRAITS IN PIGS -
Yen, J., Wells, J., Miller, D.N. 2004. Dried skim milk as a replacement for soybean meal in growing-finishing diets: Effects on growth performance, apparent total-tract nitrogen digestibility, urinary and fecal nitrogen excretion, and carcass traits in pigs. Journal of Animal Science. 82:3338-3345.
COMBINATION OF A UREASE INHIBITOR AND A PLANT ESSENTIAL OIL FOR CONTROL OF FECAL COLIFORMS AND EMISSIONS OF ODOR AND AMMONIA FROM CATTLE WASTE -
Varel, V.H., Wells, J., Miller, D.N. 2004. Combination of a urease inhibitor and a plant essential oil for control of fecal coliforms and emissions of odor and ammonia from cattle waste [abstract]. Journal of Animal Science 82(Suppl. 1):302.
EFFECT OF DRY SKIM MILK ON FECAL BACTERIAL POPULATIONS AND SALMONELLA SHEDDING IN GROWING-FINISHING SWINE -
Wells, J., Yen, J., Miller, D.N. 2004. Effect of dry skim milk on fecal bacterial populations and salmonella shedding in growing-finishing swine[abstract]. Journal of Animal Science 82(Suppl. 1):174-175.
EFFECT OF PLANT PHENOLICS ON ESCHERICHIA COLI O157:H7 SURVIVAL IN BOVINE FECES -
Wells, J.E., Berry, E.D., Miller, D.N., Varel, V.H. 2004. Effect of plant phenolics on Escherichia coli O157:H7 survival in bovine feces. In: Proceedings of the 104th General Meeting of the American Society for Microbiology, May 23-27, 2004, New Orleans, Louisiana. 2004 CDROM.
LOWER DIGESTIVE TRACT MICROBIOLOGY -
Varel, V.H., Wells, J. 2005. Lower digestive tract microbiology. In: Pond, W.G., Bell, A.W., editors. Encyclopedia of Animal Science. Marcel Dekker,Inc., New York, NY. p. 585-587.
GI TRACT: ANIMAL/MICROBIAL SYMBIOSIS -
Wells, J., Varel, V.H. 2005. Gi tract: Animal/microbial symbiosis. In: Pond, W.G., Bell, A.W., editors. Encyclopedia of Animal Science. Marcel Dekker,Inc., New York, NY. p. 449-452.
DEVELOPMENT AND APPLICATION OF A POLYMERASE CHAIN REACTION ASSAY FOR THE DETECTION AND ENUMERATION OF BILE ACID 7 ALPHA-DEHYDROXYLATING BACTERIA IN HUMAN FECES -
WELLS, J., WILLIAMS, K.B., WHITEHEAD, T.R., HEUMAN, D.M., HYLEMON, P.B. 2003. DEVELOPMENT AND APPLICATION OF A POLYMERASE CHAIN REACTION ASSAY FOR THE DETECTION AND ENUMERATION OF BILE ACID 7 ALPHA-DEHYDROXYLATING BACTERIA IN HUMAN FECES. CLINICA CHIMICA ACTA. 331:127-134.
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