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  • Opening Session - Keynote Address

    • 3rd International Symposium (2011)

    September 22, 2011 12:00 AM - September 24, 2011 12:00 AM

    St. Louis, Missouri USA

    Opening Session - Keynote Address

    Quality Will Be Everything - But What, How, and Why?

    • J. Eric Hillerton, DairyNZ Ltd, Hamilton New Zealand

    Session 1 - Management

    European Union Bulk Tank SCC Standards and Proposed US Standards: Compliance Based on Data from Four Federal Milk Marketing Orders

    • Jason E. Lombard, University of Wisconsin, Madison, Wisconsin, USA ;
    • H. Duane Norman, U.S. Department of Agriculture–Agricultural Research Service, Animal Improvement Programs Laboratory, Beltsville, Maryland, USA ;
    • Christine A. Kopral, University of Wisconsin, Madison, Wisconsin, USA ;
    • Judith M. Rodriguez, University of Wisconsin, Madison, Wisconsin, USA ;
    • Janice R. Wright, U.S. Department of Agriculture–Agricultural Research Service, Animal Improvement Programs Laboratory, Beltsville, Maryland, USA

    Trends in US Milk Quality Using Bulk Tank Somatic Cell Counts from Four Federal Milk Marketing Orders, 1997-2010

    • Jason E. Lombard, University of Wisconsin, Madison, Wisconsin, USA ;
    • Christine A. Kopral, University of Wisconsin, Madison, Wisconsin, USA ;
    • Judith M. Rodriguez, University of Wisconsin, Madison, Wisconsin, USA

    Effects of Ultraviolet Light Treatment on Milk Microbiological Quality

    • James Cullor, University of California Davis Dairy Food Safety Laboratory, Tulare, California, USA ;
    • Paul Rossitto, University of California Davis Dairy Food Safety Laboratory, Tulare, California, USA ;
    • Jennifer Crook, University of California Davis Dairy Food Safety Laboratory, Tulare, California, USA ;
    • Jared Parko, University of California Davis Dairy Food Safety Laboratory, Tulare, California, USA

    Preliminary Analysis of Bulk Tank Milk Collected on Organic and Conventional Dairy Herds in Wisconsin

    • Roxann M. Weix, University of Wisconsin, Madison, Wisconsin, USA ;
    • Pamela L. Ruegg, University of Wisconsin, Madison, Wisconsin, USA ;
    • Mike J. Gamroth, Oregon State University, Corvallis, Oregon, USA ;
    • Ynte H. Schukken, Cornell University, Ithaca, New York, USA ;
    • Kellie M. Cicconi, Cornell University, Ithaca, New York, USA ;
    • Katie E. Stiglbauer, Oregon State University, Corvallis, Oregon, USA

    Evaluation of Novel Practices Addressing Mastitis Control on Organic Dairy Farms in Vermont

    • John Barlow, University of Vermont, Burlington, Vermont, USA ;
    • Matthew Sammons, University of Vermont, Burlington, Vermont, USA ;
    • Nick Drolet, University of Vermont, Burlington, Vermont, USA ;
    • Sam Hart, University of Vermont, Burlington, Vermont, USA ;
    • Brittany Gross, University of Pennsylvania, Philadelphia, Pennsylvania, USA ;
    • Amanda Ochoa, University of Vermont, Burlington, Vermont, USA

    Objective Assessment of Pain in Dairy Cattle with Clinical Mastitis

    • Colleen E. Fitzpatrick, University of Guelph, Guelph, Ontario, Canada ;
    • Núria Chapinal, University of Guelph, Guelph, Ontario, Canada, University of British Columbia, Vancouver, British Columbia, Canada ;
    • Christina S. Petersson-Wolfe, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, USA ;
    • Todd F. Duffield, University of Guelph, Guelph, Ontario, Canada ;
    • David F. Kelton, University of Guelph, Guelph, Ontario, Canada ;
    • Trevor J. DeVries, University of Guelph, Guelph, Ontario, Canada ;
    • Ken E. Leslie, University of Guelph, Guelph, Ontario, Canada

    The Effects of Flunixin Meglumine Treatment on Activity Measures, Feed Intake, and Milk Production During Experimentally Induced Escherichia Coli Mastitis

    • Emily E. Yeiser, Virginia Tech University, Blacksburg, Virginia, USA ;
    • Ken E. Leslie, University of Guelph, Guelph, Ontario, Canada ;
    • Christina S. Petersson-Wolfe, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, USA

    Epidemiology of Mastitis Pathogens in Heifers on a Grazing Dairy

    • Davin R. Ringen, Utrecht University, Utrecht, The Netherlands ;
    • Douglas Suntrup, Utrecht University, Utrecht, The Netherlands ;
    • John R. Middleton, Utrecht University, Utrecht, The Netherlands

    Mining Sensor Data to Discover Clinical Mastitis

    • Claudia Kamphuis, Utrecht University, Utrecht, The Netherlands, DairyNZ Ltd., Hamilton, New Zealand ;
    • Herman Mollenhorst, Utrecht University, Utrecht, The Netherlands ;
    • Henk Hogeveen, Utrecht University, Utrecht, The Netherlands, Wageningen University, Wageningen, The Netherlands

    Economic Assessment of Using a 3M Petrifilm On-Farm Culture System for Selective Treatment of Clinical Mastitis

    • Kimberley MacDonald, University of Prince Edward Island, Charlottetown, Prince Edward Island, Canada ;
    • Greg Keefe, University of Prince Edward Island, Charlottetown, Prince Edward Island, Canada ;
    • Jean-Philippe Roy, Université de Montréal, St-Hyacinthe, Quebec, Canada ;
    • Ken Leslie, University of Guelph, Guelph, Ontario, Canada ;
    • Ian Dohoo, University of Prince Edward Island, Charlottetown, Prince Edward Island, Canada

    Evaluation of Propane Flaming of Sand for Reducing Bacterial Counts in Bedding

    • Joseph S. Hogan, The Ohio State University, Wooster, Ohio, USA ;
    • Lindsey M. Raubenolt, The Ohio State University, Wooster, Ohio, USA ;
    • Janet L. McCormick, The Ohio State University, Wooster, Ohio, USA ;
    • William P. Weiss, The Ohio State University, Wooster, Ohio, USA

    Evaluation of an Iodine-Based Manuka Honey Teat Dip on Teat End Health

    • Mark J. Thomas, Countryside Veterinary Clinic, LLP, Lowville, New York, USA ;
    • Daryl V. Nydam, Cornell University, Ithaca, New York, USA

    Session 2 - Diagnostics and Therapy

    Accuracy of On-Farm Diagnosis of Clinical Mastitis Using 3M Petrifilm Compared to Standard Microbiology

    • Kimberley A. MacDonald, University of Prince Edward Island, Charlottetown, Prince Edward Island, Canada ;
    • Greg P. Keefe, University of Prince Edward Island, Charlottetown, Prince Edward Island, Canada ;
    • Jean-Philippe Roy, Université de Montréal, St-Hyacinthe, Quebec, Canada ;
    • Doris Poole, University of Prince Edward Island, Charlottetown, Prince Edward Island, Canada ;
    • Anne Muckle, University of Prince Edward Island, Charlottetown, Prince Edward Island, Canada

    Evaluation of Clinical Mastitis Cure Rates Using a 3M Petrifilm On-Farm Culture System

    • Kimberley MacDonald, University of Prince Edward Island, Charlottetown, Prince Edward Island, Canada ;
    • Greg Keefe, University of Prince Edward Island, Charlottetown, Prince Edward Island, Canada ;
    • Ian Dohoo, University of Prince Edward Island, Charlottetown, Prince Edward Island, Canada ;
    • Ken Leslie, University of Guelph, Guelph, Ontario, Canada ;
    • Jean-Philippe Roy, Université de Montréal, St-Hyacinthe, Quebec, Canada

    Test Characteristics of a Petrifilm-Based On-Farm Selective Dry Cow Therapy System - Preliminary Analyses

    • M. Cameron, University of Prince Edward Island, Charlottetown, Prince Edward Island, Canada ;
    • G.P. Keefe, University of Prince Edward Island, Charlottetown, Prince Edward Island, Canada ;
    • J.P. Roy, Université de Montréal, Saint Hyacinthe, Québec, Canada ;
    • K.A. MacDonald, University of Prince Edward Island, Charlottetown, Prince Edward Island, Canada ;

    Treatments For Clinical Mastitis and Other Diseases in Large Dairy Herds in Wisconsin

    • Leane Oliveira, University of Wisconsin, Madison, Wisconsin, USA ;
    • Pamela L. Ruegg, University of Wisconsin, Madison, Wisconsin, USA

    Efficacy of 5-Day Intramammary Versus Systemic Benzylpenicillin Treatment of Clinical Mastitis Caused by Gram-positive Bacteria: Evaluation of the Bacteriological Cure Using a PCR Test

    • Satu Pyörälä, University of Helsinki, Helsinki, Finland ;
    • Suvi Taponen, University of Helsinki, Helsinki, Finland ;
    • Toomas Orro, Estonian University of Life Sciences, Tartu, Estonia ;
    • Piret Kalmus, Estonian University of Life Sciences, Tartu, Estonia ;
    • Katja Mustonen, University of Helsinki, Helsinki, Finland ;
    • Jani Holopainen, Thermo Fisher Scientific, Vantaa, Finland and Heli Simojoki, University of Helsinki, Helsinki, Finland ;
    • Heli Simojoki, University of Helsinki, Helsinki, Finland

    Decision Tree Analysis of Treatment Strategies for Mild and Moderate Cases of Clinical Mastitis Occurring in Early Lactation

    • Carolina Pinzón-Sánchez, University of Wisconsin, Madison, Wisconsin, USA ;
    • Victor E. Cabrera, University of Wisconsin, Madison, Wisconsin, USA ;
    • Pamela L. Ruegg, University of Wisconsin, Madison, Wisconsin, USA

    Measuring Antimicrobial Drug Utilization on Dairy Farms: The Canadian Scenario

    • Vineet Saini, University of Calgary Veterinary Medicine, Calgary, Alberta, Canada ;
    • J.T. McClure, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, Prince Edward Island, Canada ;
    • David F. Léger, Laboratory for Foodborne Zoonoses, Public Health Agency of Canada, Guelph, Ontario, Canada ;
    • Simon Dufour, University of Montreal, Saint-Hyacinthe, Québec, Canada ;
    • Daniel T. Scholl, University of Montreal, Saint-Hyacinthe, Québec, Canada ;
    • Herman W. Barkema, University of Calgary Veterinary Medicine, Calgary, Alberta, Canada

    Antimicrobial Resistance Profiles of Bovine Mastitis Pathogens in Canadian Dairy Cattle

    • Vineet Saini, University of Calgary Veterinary Medicine, Calgary, Alberta, Canada ;
    • J.T. McClure, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, Prince Edward Island, Canada ;
    • David F. Léger, Laboratory for Foodborne Zoonoses, Public Health Agency of Canada, Guelph, Ontario, Canada ;
    • Greg P. Keefe, University of Prince Edward Island, Charlottetown, Prince Edward Island, Canada ;
    • Daniel T. Scholl, University of Montreal, Saint-Hyacinthe, Québec, Canada ;
    • Doug W. Morck, University of Calgary Veterinary Medicine, Calgary, Alberta, Canada ;
    • Herman W. Barkema, University of Calgary Veterinary Medicine, Calgary, Alberta, Canada

    Practical Evaluation of Automatic In-Line Mastitis Sensors

    • Claudia Kamphuis, Utrecht University, Utrecht, The Netherlands, DairyNZ Ltd., Hamilton, New Zealand ;
    • Brian Dela Rue, DairyNZ Ltd., Hamilton, New Zealand ;
    • Graeme Mein, La Sibila, Totoras, Argentina ;
    • Jenny Jago, DairyNZ Ltd., Hamilton, New Zealand

    Prevalence of Intramammary Infection at Calving in Cows Selectively Treated at Drying Off Based on On-farm Culture - Preliminary Analyses

    • M. Cameron, University of Prince Edward Island, Charlottetown, Prince Edward Island, Canada ;
    • G.P. Keefe, University of Prince Edward Island, Charlottetown, Prince Edward Island, Canada ;
    • J.P. Roy, Université de Montréal, Saint Hyacinthe, Québec, Canada ;
    • K.A. MacDonald, University of Prince Edward Island, Charlottetown, Prince Edward Island, Canada

    Efficacy and Economic Benefit of an Internal Teat Sealant During Drought and Rainy Weather Dry Period on Incidence of Clinical Mastitis

    • Eial Izak, Mastitis Prevention Services, Buenos Aires, Argentina ;
    • Emilia Castello, La Sibila, Totoras, Argentina ;
    • Guillermo Veneranda, La Sibila, Totoras, Argentina

    Session 3 - Pathogens

    Real Time PCR Values for Mastitis Pathogens - Relations to Milk Quality and Herd Characteristics in Danish Dairy Herds

    • Torben Werner Bennedsgaard, Department of Animal Bioscience and Health, Aarhus University, Foulum, Denmark ;
    • Jorgen Katholm, Knowledge Center for Agriculture, Cattle, Aarhus, Denmark

    Identification of Mycoplasma species Using Novel Real-time PCR Assays

    • Sukolrat Boonyayatra, Washington State University, Pullman, Washington, USA ;
    • Larry K. Fox, Washington State University, Pullman, Washington, USA ;
    • Thomas E. Besser, Washington State University, Pullman, Washington, USA ;
    • Ashish Sawant, Washington State University, Pullman, Washington, USA ;
    • John M. Gay, Washington State University, Pullman, Washington, USA ;
    • Ziv Raviv, The Ohio State University, Columbus, Ohio, USA

    Detection of Mycoplasma spp. in Bulk Tank Milk Samples Using Conventional Culture and Real-time PCR

    • David J. Wilson, Utah State University, Logan, Utah, USA ;
    • Anne E. Justice-Allen, Arizona Game and Fish Department, Phoenix, Arizona, USA ;
    • Jessie Goodell

    Survey of Bulk Tank Milk From All Danish Dairy Herds in 2009 and 2010 with Real-time PCR

    • Jorgen Katholm, Knowledge Center for Agriculture, Cattle, Aarhus, Denmark ;
    • Torben W. Bennedsgaard, Department of Animal Health and Bioscience, Aarhus University, Foulum, Denmark

    Metagenomic Evaluation of Culture-negative Clinical Mastitis Samples for Evidence of a Bacterial Etiology

    • Joanna Kuehn, College of Veterinary Medicine, Iowa State University, Ames Iowa, USA ;
    • Patrick Gorden, College of Veterinary Medicine, Iowa State University, Ames Iowa, USA ;
    • Daniel Munro, Department of Biological Sciences, University of North Texas, Denton, Texas, USA ;
    • Chong Wang, College of Veterinary Medicine, Iowa State University, Ames Iowa, USA ;
    • Qunfeng Dong, Department of Biological Sciences, University of North Texas, Denton, Texas, USA ;
    • Gregory Phillips, College of Veterinary Medicine, Iowa State University, Ames Iowa, USA and Paul Plummer, College of Veterinary Medicine, Iowa State University, Ames Iowa, USA ;
    • Paul Plummer

    Klebsiella Mastitis: Prevention and Treatment Recommendations

    • Ruth N. Zadoks, Moredun Research Institute, Penicuik, Scotland, UK, Cornell University, Ithaca, New York, USA and ;
    • Ynte H. Schukken, Cornell University, Ithaca, New York, USA

    Epidemiologic Aspects of a Mastitis Outbreak Caused by Protothecaspp. in a Large Dairy Herd

    • Allan Britten, Udder Health Systems, Inc., Boise, Idaho, USA

    Methicillin-resistant Staphylococcus aureus (MRSA) in North Carolina Bulk Milk Tanks

    • Jorge P. Ferreira, North Carolina State University College of Veterinary Medicine, Raleigh, North Carolina, USA ;
    • Maria T. Correa, North Carolina State University College of Veterinary Medicine, Raleigh, North Carolina, USA ;
    • Roberta L. Lyman, North Carolina State University College of Veterinary Medicine, Raleigh, North Carolina, USA ;
    • Kevin L. Anderson, North Carolina State University College of Veterinary Medicine, Raleigh, North Carolina, USA

    Effects of Streptococcus agalactiae on the Columbian Dairy Industry

    • Greg Keefe, University of Prince Edward Island, Charlottetown, Prince Edward Island, Canada ;
    • Marcelo Chaffer, University of Prince Edward Island, Charlottetown, Prince Edward Island, Canada ;
    • Alejandro Ceballos, Cornell University, Geneseo, New York, USA, and Universidad de Caldas, Manizales, Columbia ;
    • Marcela Londono, Colanta, Medellin, Columbia ;
    • Manuel Jaramillo, Colanta, Medellin, Columbia ;
    • Mercedes Toro, Colanta, Medellin, Columbia

    Experiences from Herd Outbreaks of Streptococcus agalactiae Mastitis

    • Rikard Carlzén, Swedish University of Agricultural Sciences, Uppsala, Sweden ;
    • Håkan Landin, Swedish Dairy Association, Stockholm, Sweden ;
    • Karin Persson Waller, Swedish University of Agricultural Sciences, Uppsala, Sweden, National Veterinary Institute, Uppsala, Sweden

    Experimentally Induced Streptococcus uberis Mastitis in Dairy Heifers: A Challenge Model Incident to a Vaccine Trial

    • Kayla A. Jackson, University of Georgia, Athens, Georgia, USA ;
    • Stephen C. Nickerson, University of Georgia, Athens, Georgia, USA ;
    • Felicia M. Kautz, University of Georgia, Athens, Georgia, USA ;
    • David J. Hurley, University of Georgia, Athens, Georgia, USA

    Streptococcus uberis Mastitis Isolates Vary in Their Ability to Form Biofilms

    • Maria E. Prado, University of Tennessee, Knoxville, Tennessee, USA ;
    • Glenis E. Moore, University of Tennessee, Knoxville, Tennessee, USA ;
    • Oudessa Kerro-Dego, University of Tennessee, Knoxville, Tennessee, USA ;
    • Raul A. Almeida, University of Tennessee, Knoxville, Tennessee, USA ;
    • Stephen P. Oliver, University of Tennessee, Knoxville, Tennessee, USA

    Experimental Mastitis Induced with Two different Staphylococcus epidermidis Strains: A Non-invasive Human-originated Strain ATCC 12228 and a Strain from Persistent Bovine Mastitis

    • Heli Simojoki, University of Helsinki, Helsinki, Finland ;
    • Suvi Taponen, University of Helsinki, Helsinki, Finland ;
    • Tiina Salomäki, University of Helsinki, Helsinki, Finland ;
    • Antti Iivanainen, University of Helsinki, Helsinki, Finland ;
    • Satu Pyörälä, University of Helsinki, Helsinki, Finland

    Agglutination Tests for Identification of Staphylococcus aureus from Cases of Bovine Mastitis

    • Karin Persson Waller, Swedish University of Agricultural Sciences, Uppsala, Sweden, National Veterinary Institute, Uppsala, Sweden ;
    • Susanne André, National Veterinary Institute, Uppsala, Sweden ;
    • Katarina Järnevi, National Veterinary Institute, Uppsala, Sweden ;
    • Helle Ericsson Unnerstad, National Veterinary Institute, Uppsala, Sweden

    Session 4 - Immunology and Host Defense

    Establishing Benchmarks to Evaluate and Compare Dairy Herds’ Udder Health Status Using Monthly Somatic Cell Counts: Descriptive Data

    • Véronique Fauteux, Faculty of Veterinary Medicine, University of Montreal, Saint-Hyacinthe, Québec, Canada ;
    • Émile Bouchard, Faculty of Veterinary Medicine, University of Montreal, Saint-Hyacinthe, Québec, Canada ;
    • Daniel Scholl, Faculty of Veterinary Medicine, University of Montreal, Saint-Hyacinthe, Québec, Canada ;
    • Jean-Philippe Roy, Université de Montréal, St-Hyacinthe, Quebec, Canada

    Reference System for Somatic Cell Counting in Milk

    • Silvia Orlandini, Associazione Italiana Allevatori – Laboratorio Standard Latte, Maccarese (Roma), Italy

    Association Between Subclinical Hypocalcemia, Milk Somatic Cell Count, and Clinical Mastitis

    • William G. Chamberlin, University of Missouri, Columbia, Missouri, USA ;
    • John R. Middleton, Utrecht University, Utrecht, The Netherlands ;
    • James N. Spain, University of Missouri, Columbia, Missouri, USA ;
    • Gayle C. Johnson, University of Missouri, Columbia, Missouri, USA ;
    • Mark R. Ellersieck, University of Missouri, Columbia, Missouri, USA

    Phenotype Versus Function - Macrophages in the Bovine Teat

    • Anna Düvel, University of Veterinary Medicine Hannover, Hannover, Germany ;
    • Constanze Frank, University of Veterinary Medicine Hannover, Hannover, Germany ;
    • Hans-Joachim Schuberth, University of Veterinary Medicine Hannover, Hannover, Germany ;
    • Anja Sipka, University of Veterinary Medicine Hannover, Hannover, Germany, Cornell University, Ithaca, New York, USA

    Mammary Cellular Immune Responses to Staphylococcus aureus

    • Christopher D. Luby, Western College of Veterinary Medicine, Saskatoon, Saskatchewan, Canada ;
    • Jose Perez-Casal, Vaccine and Infectious Disease Organization, Saskatoon, Saskatchewan, Canada ;
    • Andrew A. Potter, Vaccine and Infectious Disease Organization, Saskatoon, Saskatchewan, Canada

    Are Cows that Appear Resistant to Natural Infection by Streptococcus uberis Resistant to Infection Following a Teat Canal Inoculation?

    • Sally-Anne Turner, DairyNZ Ltd, Hamilton, New Zealand ;
    • John H. Williamson, DairyNZ Ltd, Hamilton, New Zealand ;
    • S. Jane Lacy-Hulbert, DairyNZ Ltd, Hamilton, New Zealand ;
    • J. Eric Hillerton, DairyNZ Ltd, Hamilton New Zealand

    Immunological Response to an Experimental Intramammary Inoculation with a Killed Staphylococcus aureus Strain in Vaccinated and Non-vaccinated Lactating Dairy Cows

    • Kathelijne Deberdt, Ghent University, Merelbeke, Belgium ;
    • Sofie Piepers, Ghent University, Merelbeke, Belgium ;
    • Antoni Prenafeta, HIPRA, S.A., Girona, Spain ;
    • Ricard March, HIPRA, S.A., Girona, Spain ;
    • Antoni Foix, HIPRA, S.A., Girona, Spain ;
    • Roger Guix, HIPRA, S.A., Girona, Spain ;
    • Anneleen De Visscher, Ghent University, Merelbeke, Belgium ;
    • Joren Verbeke, Ghent University, Merelbeke, Belgium ;
    • Sarne De Vliegher, Ghent University, Merelbeke, Belgium

    Effect of Pericalving Mastitis in Heifers on First Lactation Yield

    • Lachlan H. Pearson, DairyNZ Ltd, Hamilton, New Zealand ;
    • John H. Williamson, DairyNZ Ltd, Hamilton, New Zealand ;
    • Sally-Anne Turner, DairyNZ Ltd, Hamilton, New Zealand ;
    • S. Jane Lacy-Hulbert, DairyNZ Ltd, Hamilton, New Zealand ;
    • J. Eric Hillerton, DairyNZ Ltd, Hamilton New Zealand

    Relationship Between Estimated Breeding Value for Somatic Cell Count and Prevalence of Intramammary Infection in Dairy Goats

    • S. McDougall, Animal Health Centre, Morrinsville, New Zealand ;
    • N. Lopez-Villalobos, Massey University, Palmerston North, New Zealand ;
    • C.G. Prosser, Dairy Goat Cooperative, Hamilton, New Zealand

    Poster Session

    Effect of dexamethasone administration on shedding of Mycoplasma bovis in calves.

    • Hussain Alabdullah, Washington State University, Pullman, Washington, USA ;
    • Christopher Schneider, Washington State University, Pullman, Washington, USA ;
    • Larry Fox, Washington State University, Pullman, Washington, USA

    Role of a Streptococcus uberis adhesion molecule in adherence to and internalization of Streptococcus uberis into bovine mammary epithelial cells.

    • Raul A. Almeida, University of Tennessee, Knoxville, Tennessee, USA ;
    • Xueyan Chen, The University of Tennessee, Knoxville, Tennessee, USA ;
    • Maria E. Prado, University of Tennessee, Knoxville, Tennessee, USA ;
    • Stephen P. Oliver, University of Tennessee, Knoxville, Tennessee, USA

    How common is verotoxin producing Esherichia coli in mastitis?

    • Karin Artursson, National Veterinary Institute, Uppsala, Sweden ;
    • Anna Aspan, National Veterinary Institute, Uppsala, Sweden ;
    • Ylva Persson, National Veterinary Institute, Uppsala, Sweden and Robert Söderlund, National Veterinary Institute, Uppsala, Sweden ;
    • Robert Söderlund

    A novel vaccine approach for Staphylococcus aureus mastitis using bacteriophage lysis.

    • John Balcarek, Immunology Laboratories, Inc., Birmingham, Alabama, USA ;
    • Jiri Pillich, Immunology Laboratories, Inc., Brno, Czech Republic ;
    • Buelon Moss, Auburn University, Auburn, Alabama, USA ;
    • Radek Bucek, Immunology Laboratories, Inc., Brno, Czech Republic ;
    • Martin Faldyna, Veterinary Research Institute, Brno, Czech Republic

    The effect of intramammary infection on somatic cell count and milk yield in goats.

    • Carol Collar, University of California, Davis, Californnia, USA ;
    • Debora Costa Bacon, University of California, Davis, Californnia, USA ;
    • Elizabeth Maga, University of California, Davis, Californnia, USA ;
    • Jim Murray, University of California, Davis, Californnia, USA ;
    • Gerrit Rowe ;
    • Jim Cullor, University of California, Davis, Californnia, USA

    Neutrophil apoptosis evaluation in milk with high and low somatic cell count.

    • Rebecca Pessoa, University of São Paulo, São Paulo, Brazil ;
    • Maiara Blagitz, University of São Paulo, São Paulo, Brazil ;
    • Camila Batista, University of São Paulo, São Paulo, Brazil ;
    • Bruna Dos Santos, University of São Paulo, São Paulo, Brazil ;
    • Andréia Parra, University of São Paulo, São Paulo, Brazil ;
    • Fernando Souza, University of São Paulo, São Paulo, Brazil ;
    • Alice Della Libera, University of São Paulo, São Paulo, Brazil

    Relationship between somatic cell count, somatic cell score, and lactoferrin concentration in milk from high and low somatic cell count cows.

    • Antonia Domino, Cornell University, Ithaca, New York, USA

    Detection of multi drug resistant, enterotoxin producing methicillin resistant Staphylococcus aureus in Minnesota bulk tank milk.

    • Preethi Haran, Veterinary Population Medicine, University of Minnesota, St. Paul, Minnesota, USA ;
    • Sandra Godden, Veterinary Population Medicine, University of Minnesota, St. Paul, Minnesota, USA ;
    • Jeff Bender, Veterinary Population Medicine, University of Minnesota, St. Paul, Minnesota, USA ;
    • Srinand Sreevatsan, Veterinary Population Medicine, University of Minnesota, St. Paul, Minnesota, USA, Veterinary and Biomedical Sciences, University of Minnesota, St. Paul, Minnesota, USA

    Genetic diversity of Staphylococcus aureus strains isolated from bovine milk using RAPD-PCR.

    • Abhijit A. Gurjar, Quality Milk Production Services, Cornell University, Ithaca, New York, USA ;
    • Frank Welcome, Quality Milk Production Services, Cornell University, Ithaca, New York, USA ;
    • Paolo Moroni, Quality Milk Production Services, Cornell University, Ithaca, New York, USA ;
    • Carlos Santisteban, Quality Milk Production Services, Cornell University, Ithaca, New York, USA ;
    • Ynte H. Schukken, Cornell University, Ithaca, New York, USA

    In vitro phenotypic characterization of clinical mastitis-causing Streptococcus uberis isolates: Biofilm formation and resistance to phagocytosis.

    • Joanna Hintukainen, University of Helsinki, Helsinki, Finland ;
    • Tiina Salomäki, University of Helsinki, Helsinki, Finland ;
    • Piret Kalmus, Estonian University of Life Sciences, Tartu, Estonia ;
    • Heli Simojoki, University of Helsinki, Helsinki, Finland ;
    • Anna-Liisa Pyörälä ;
    • Antti Iivanainen, University of Helsinki, Helsinki, Finland

    Gene expression of bovine mammary epithelial cells infected with Escherichia coli associated with acute or persistent bovine mastitis.

    • Oudessa Kerro-Dego, University of Tennessee, Knoxville, Tennessee, USA ;
    • Raul A. Almeida, University of Tennessee, Knoxville, Tennessee, USA ;
    • Stephen P. Oliver, University of Tennessee, Knoxville, Tennessee, USA

    Identification of virulence-associated genes and their expression patterns in strains of Escherichia coli associated with bovine mastitis.

    • Oudessa Kerro-Dego, University of Tennessee, Knoxville, Tennessee, USA ;
    • Raul A. Almeida, University of Tennessee, Knoxville, Tennessee, USA ;
    • Stephen P. Oliver, University of Tennessee, Knoxville, Tennessee, USA

    Nordic guidelines for mastitis therapy.

    • Håkan Landin, Swedish Dairy Association, Stockholm, Sweden ;
    • Jonas Carlsson, Swedish Dairy Association, Stockholm, Sweden ;
    • Knut-Ove Hennum, Tine Dairy Industries, As, Norway ;
    • Jorgen Katholm, Knowledge Center for Agriculture, Cattle, Aarhus, Denmark ;
    • Laura Kulkas⁴ ;
    • Ylva Persson, National Veterinary Institute, Uppsala, Sweden and Robert Söderlund, National Veterinary Institute, Uppsala, Sweden ;
    • Kerstin Plym-Forshell, Tine Dairy Industries, As, Norway ;
    • Erik Rattenborg, Knowledge Center for Agriculture, Arhus, Denmark, Valio R&D, Tampere, Finland ;
    • Charlotte Sandgren, Swedish Dairy Association, Stockholm, Sweden ;
    • Liv Solverod, Tine Dairy Industries, As, Norway ;
    • Anne Cathrine Whist, Tine Dairy Industries, As, Norway ;

    Influence of bacterial genotype on outcome of clinical Staphylococcus aureus mastitis.

    • Åsa Lundberg, National Veterinary Institute, Uppsala, Sweden, Swedish University of Agricultural Sciences, Uppsala, Sweden ;
    • Anna Aspán, National Veterinary Institute, Uppsala, Sweden ;
    • Ann Nyman, National Veterinary Institute, Uppsala, Sweden ;
    • Karin Persson Waller, Swedish University of Agricultural Sciences, Uppsala, Sweden, National Veterinary Institute, Uppsala, Sweden

    Drying-off practices on Ohio dairies.

    • Päivi J. Rajala-Schultz, The Ohio State University, Columbus, Ohio, USA ;
    • Luciana Da Costa, The Ohio State University, Columbus, Ohio, USA

    Etiology of bovine mastitis on dairy farms in Northern Antioquia, Colombia.

    • Nicolás Ramírez, Grupo Centauro, Universidad de Antioquia, Medellín, Colombia ;
    • Ofelia Arroyave, Grupo Centauro, Universidad de Antioquia, Medellín, Colombia ;
    • Mario Cerón, Grupo GaMMA, Universidad de Antioquia, Medellín, Colombia ;
    • Manuel Jaramillo, Colanta, Medellin, Columbia ;
    • Juan M. Ceron, Colanta, Medellín, Colombia ;
    • Guillermo Palacio, Grupo Centauro, Universidad de Antioquia, Medellín, Colombia

    Raw milk quality on Wisconsin farmstead dairies.

    • Ana Rodrigues, University of Wisconsin, Madison, Wisconsin, USA ;
    • Carol Hulland, University of Wisconsin, Madison, Wisconsin, USA ;
    • Pamela Ruegg, University of Wisconsin, Madison, Wisconsin, USA

    Identification of genes differentially present in strains of Klebsiella pneumoniae associated with bovine clinical mastitis.

    • Brenda Werner, Quality Milk Production Services, Cornell University, Ithaca, New York, USA ;
    • Marcos Munoz, Quality Milk Production Services, Cornell University, Ithaca, New York, USA, Universidad de Concepción, Chillán, Chile ;
    • Ruth Zadoks, Quality Milk Production Services, Cornell University, Ithaca, New York, USA ;
    • Paolo Moroni, Quality Milk Production Services, Cornell University, Ithaca, New York, USA ;
    • Ynte Schukken, Quality Milk Production Services, Cornell University, Ithaca, New York, USA

    Evaluation of matrix-assisted laser desorption ionization time-of-flight mass spectrometry to identify the causative agents of mastitis without microbiological culture.

    • Juliana Barreiro, University of São Paulo, Pirassununga, Brazil ;
    • Christina Ferreira, State University of Campinas, Campinas, Brazil ;
    • Gustavo Sanvido, State University of Campinas, Campinas, Brazil ;
    • Juliano Gonçalves, University of São Paulo, Pirassununga, Brazil ;
    • Marcos Eberlin, State University of Campinas, Campinas, Brazil ;
    • Marcos Santos, University of São Paulo, Pirassununga, Brazil

    Use of cotton-swabs in detection of Staphylococcus aureus in bovine milk.

    • Amanda N. Wagner, College of Veterinary Medicine, The Ohio State University, Columbus, Ohio, USA ;
    • Päivi J. Rajala-Schultz, The Ohio State University, Columbus, Ohio, USA ;
    • Luciana Casimiro da Costa, College of Veterinary Medicine, The Ohio State University, Columbus, Ohio, USA

    Lactococcus lactis subsp. lactis and intramammary infection on three New York dairy farms.

    • Arfan Yousaf, Brenda Werner, Quality Milk Production Services, Cornell University,  Ithaca, New York, USA ;
    • Brenda Werner, Quality Milk Production Services, Cornell University, Ithaca, New York, USA ;
    • Francis Welcome, Quality Milk Production Services, Cornell University,  Ithaca, New York, USA ;
    • Lucia Alconero, Quality Milk Production Services, Cornell University,  Ithaca, New York, USA ;
    • Ynte Schukken, Quality Milk Production Services, Cornell University, Ithaca, New York, USA ;
    • Paolo Moroni, Quality Milk Production Services, Cornell University, Ithaca, New York, USA

    Naturally occurring chronic mastitis has negative effects on ovarian functions.

    • Mahbubur Rahman, DSA ;
    • Maria Mazilli, DIPAV, Università Degli Studi di Milano, Milan, Italy ;
    • Georgia Pennarossa, DSA ;
    • Tiziana A.L. Brevini, DSA ;
    • Arianna Vanelli, DSA ;
    • Alfonso Zecconi, DIPAV, Università Degli Studi di Milano, Milan, Italy and Fulvio Gandofi, DSA ;
    • Fulvio Gandofi

    Influence of dry period length on somatic cell count after calving.

    • Lucio Zanini, SATA Lombardia, Italy, DIPAV, Università Degli Studi di Milano, Milan, Italy ;
    • Alfonso Zecconi, DIPAV, Università Degli Studi di Milano, Milan, Italy and Fulvio Gandofi, DSA