Ken Steen Pedersen

Ken Steen Pedersen

Associate Professor


  1. 2024
  2. Published

    Prevention of umbilical outpouchings and mortality in pigs: Meloxicam, tying, cutting, and chlorhexidine versus amoxicillin or no treatment? A clinical field trial

    Hansen, Marie-Louise Elisabeth L, Larsen, Inge, Jensen, T. B., Kristensen, C. S. & Pedersen, Ken Steen, 2024, In: Porcine Health Management. 10, 10 p., 10.

    Research output: Contribution to journalJournal articleResearchpeer-review

  3. Published

    The cotton swab method: an accurate and less invasive way to assess fecal consistency in weaned pigs

    Eriksen, E. Ø., Sejersen, M. F. & Pedersen, Ken Steen, 2024, In: BMC Veterinary Research. 20, 10 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  4. Published

    Umbilical outpouchings in Danish piglets and weaners: prevalence and clinical characteristics - a cross-sectional study at herd level

    Hansen, Marie-Louise Elisabeth L, Jensen, T. B., Kristensen, C. S., Larsen, Inge & Pedersen, Ken Steen, 2024, In: Porcine Health Management. 10, 8 p., 3.

    Research output: Contribution to journalJournal articleResearchpeer-review

  5. 2023
  6. Published
  7. Published

    Bacterial topography of the upper and lower respiratory tract in pigs

    Pirolo, Mattia, Espinosa-Gongora, C., Alberdi, Antton, Eisenhofer Philipona, Raphael A, Soverini, M., Eriksen, E. Ø., Pedersen, Ken Steen & Guardabassi, Luca, 2023, In: BMC Animal Microbiome. 5, 13 p., 5.

    Research output: Contribution to journalJournal articleResearchpeer-review

  8. Published

    Comparing video examinations with physical clinical examinations using finishing pigs with umbilical outpouchings as a model

    Birch, Julie Knippel Melsted & Pedersen, Ken Steen, 2023, In: Acta Veterinaria Scandinavica. 65, 26.

    Research output: Contribution to journalJournal articleResearchpeer-review

  9. Published

    Cystitis: significant associations between pathology, histology, and quantitative bacteriology in sows, a cross-sectional study

    Tolstrup, L. K., Leifsson, Páll S., Guardabassi, Luca, Nielsen, Jens Peter & Pedersen, Ken Steen, 2023, In: Porcine Health Management. 9, 41.

    Research output: Contribution to journalJournal articleResearchpeer-review

  10. Published

    Easy and reliable assessment of the prevalence of porcine post-weaning diarrhoea

    Eriksen, E. Ø., Nielsen, Jens Peter, Schmidt, Marianne Viuf Agerlin, Christensen, A. E. & Pedersen, Ken Steen, 2023, In: Preventive Veterinary Medicine. 220, 11 p., 106041.

    Research output: Contribution to journalJournal articleResearchpeer-review

  11. Published

    Gastro-intestinal lesions are not relatable to diarrhoea or specific pathogens in post-weaning diarrhoea (PWD) in pigs

    Blirup-Plum, Sophie Amalie, Jensen, Henrik Elvang, Nielsen, Søren Saxmose, Pankoke, K., Hansen, Mette Sif, Pedersen, Ken Steen, Eriksen, E. Ø., Nielsen, Jens Peter, Olsen, John Elmerdahl, Kudirkiene, E., Larsen, Lars, Goecke, Nicole Bakkegård & Barington, Kristiane, 2023, In: Acta Veterinaria Scandinavica. 65, p. 1-18 18 p., 30.

    Research output: Contribution to journalJournal articleResearchpeer-review

  12. Published

    Lesions and pathogens found in pigs that died during the nursery period in five Danish farms

    Barington, Kristiane, Eriksen, E. Ø., Kudirkiene, E., Pankoke, K., Hartmann, Katrine Top, Hansen, Mette Sif, Jensen, Henrik Elvang, Blirup-Plum, Sophie Amalie, Jørgensen, B. M., Nielsen, Jens Peter, Olsen, John Elmerdahl, Goecke, Nicole Bakkegård, Larsen, Lars & Pedersen, Ken Steen, 2023, In: Porcine Health Management. 9, 26.

    Research output: Contribution to journalJournal articleResearchpeer-review

  13. Published

    Neomycin resistance in clinical Escherichia coli from Danish weaner pigs is associated with recent neomycin use and presence of F4 or F18 fimbriaes

    Subramani, P., Pirolo, Mattia, Haugegaard, S., Skarbye, Alice Puk, Conrady, Beate, Pedersen, Ken Steen, Guardabassi, Luca & Damborg, Peter Panduro, 2023, In: Preventive Veterinary Medicine. 212, p. 105852

    Research output: Contribution to journalJournal articleResearchpeer-review

  14. 2022
  15. Published

    Evidensbaserede anbefalinger til forebyggelse af fravænningsdiarré

    Eriksen, E. Ø., Pedersen, Ken Steen, Larsen, Inge & Nielsen, Jens Peter, Apr 2022, Københavns Universitet. 28 p.

    Research output: Book/ReportReportResearch

  16. Published
  17. Published

    Evaluation of the diagnostic performance of a commercially available point-of-care test for post weaning diarrhoea in pigs-a pilot study

    Jakobsen, Nadia, Goecke, Nicole Bakkegård & Pedersen, Ken Steen, 2022, In: Porcine Health Management. 8, 49.

    Research output: Contribution to journalJournal articleResearchpeer-review

  18. Published

    Evidence-Based Recommendations for Herd Health Management of Porcine Post-Weaning Diarrhea

    Eriksen, E. Ø., Pedersen, Ken Steen, Larsen, Inge & Nielsen, Jens Peter, 2022, In: Animals. 12, 14, 1737.

    Research output: Contribution to journalJournal articleResearchpeer-review

  19. Published

    INCIDENCE OF EAR-WOUNDS THE FIRST 14 DAYS AFTER INSERTION INTO TWO DANISH NURSERY UNITS

    Eriksen, E. Ø., Schmidt, Marianne Viuf Agerlin, Christensen, A. E. & Pedersen, Ken Steen, 2022.

    Research output: Contribution to conferencePosterResearchpeer-review

  20. Published

    Recommendations on diagnostic investigations of post-weaning diarrhea outbreaks: assessing the prevalence of diarrhea and determining microbiological etiologies

    Eriksen, E. Ø., Nielsen, Jens Peter, Kudirkiene, E., Olsen, John Elmerdahl, Goecke, Nicole Bakkegård, Larsen, Lars, Liu, G., Schmidt, Marianne Viuf Agerlin, Christensen, A. E. & Pedersen, Ken Steen, 2022.

    Research output: Contribution to conferenceConference abstract for conferenceResearchpeer-review

  21. 2021
  22. Published

    Post-weaning diarrhea in pigs weaned without medicinal zinc: risk factors, pathogen dynamics, and association to growth rate

    Eriksen, E. Ø., Kudirkiene, E., Christensen, A. E., Schmidt, Marianne Viuf Agerlin, Weber, N. R., Nødtvedt, A., Nielsen, Jens Peter, Hartmann, Katrine Top, Skade, L., Larsen, Lars, Pankoke, K., Olsen, John Elmerdahl, Jensen, Henrik Elvang & Pedersen, Ken Steen, 2021, In: Porcine Health Management. 7, 54.

    Research output: Contribution to journalJournal articleResearchpeer-review

  23. Published

    Post-weaning diarrhea outbreaks in Danish herds not using medicinal zinc oxide

    Eriksen, E. Ø., Kudirkiene, E., Nielsen, Jens Peter, Olsen, John Elmerdahl & Pedersen, Ken Steen, 2021.

    Research output: Contribution to conferenceConference abstract for conferenceResearchpeer-review

  24. Published

    The effect of colistin treatment on the selection of colistin-resistant Escherichia coli in weaner pigs

    Ahmed, S., Hansen, C., Dahlkilde, A. L., Herrero-Fresno, A., Pedersen, Ken Steen, Nielsen, Jens Peter & Olsen, John Elmerdahl, 2021, In: Antibiotics. 10, 4, 465.

    Research output: Contribution to journalJournal articleResearchpeer-review

  25. 2020
  26. Published

    Post-weaning diarrhea in herds not using medicinal zinc

    Eriksen, E. Ø., Nielsen, Jens Peter & Pedersen, Ken Steen, 29 Jan 2020.

    Research output: Contribution to conferenceConference abstract for conferenceResearch

  27. Objective pathogen monitoring in nursery and finisher pigs by monthly laboratory diagnostic testing

    Goecke, Nicole Bakkegård, Kobberø, M., Kusk, T. K., Hjulsager, C. K., Pedersen, Ken Steen, Kristensen, C. S. & Larsen, Lars, 2020, In: Porcine Health Management. 6, p. 14 23.

    Research output: Contribution to journalJournal articleResearchpeer-review

  28. 2018
  29. Diarrhoea in neonatal piglets: A case control study on microbiological findings

    Kongsted, H., Pedersen, K., Hjulsager, C. K., Larsen, Lars, Pedersen, Ken Steen, Jorsal, S. E. & Bækbo, P., 3 Sep 2018, In: Porcine Health Management. 4, 1, 17.

    Research output: Contribution to journalJournal articleResearchpeer-review

  30. Published

    Comparison of serum pools and oral fluid samples for detection of porcine circovirus type 2 by quantitative real-time PCR in finisher pigs

    Nielsen, G. B., Nielsen, Jens Peter, Haugegaard, J., Leth, S. C., Larsen, Lars, Kristensen, C. S., Pedersen, Ken Steen, Stege, Helle, Hjulsager, C. K. & Houe, Hans, 1 Feb 2018, In: Porcine Health Management. 4, 10 p., 2.

    Research output: Contribution to journalJournal articleResearchpeer-review

  31. Published

    A prospective cohort study of game-based learning by digital simulation of a pig farm to train agriculture students to reduce piglet mortality

    Klit, K. J. M., Pedersen, Ken Steen & Stege, Helle, 2018, In: Porcine Health Management. 4, 1, 8 p., 28.

    Research output: Contribution to journalJournal articleResearchpeer-review

  32. 2017
  33. Published

    Batch medication of intestinal infections in nursery pigs: A randomised clinical trial on the efficacy of treatment strategy, type of antibiotic and bacterial load on average daily weight gain

    Weber, N. R., Pedersen, Ken Steen, Hansen, C. F., Denwood, Matt, Hjulsager, C. K. & Nielsen, Jens Peter, 1 Feb 2017, In: Preventive Veterinary Medicine. 137, Part A, p. 69-76 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  34. Published

    Association of resistance to ampicillin and other antibiotic agents as evidence of co-selection in E. coli isolates from diarrheic nursery pigs

    Weber, N. R., Nielsen, Jens Peter & Pedersen, Ken Steen, 2017, 9th European Symposium of Porcine Health Management : Proceedings. p. 246 1 p.

    Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsResearchpeer-review

  35. Published

    Association between isolation of enterotoxigenic E. coli and numbers of E. coli F18 genes in faeces in nursery pigs

    Weber, N. R., Nielsen, Jens Peter & Pedersen, Ken Steen, 2017, 9th European Symposium of Porcine Health Management: Proceedings. p. 103 1 p.

    Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsResearchpeer-review

  36. Published

    Comparison of antimicrobial resistance in E. coli isolated from rectal and floor samples in pens with diarrhoeic nursery pigs in Denmark

    Weber, N. R., Nielsen, Jens Peter, Jorsal, S. E. L., Haugegaard, S., Denwood, Matt & Pedersen, Ken Steen, 2017, In: Preventive Veterinary Medicine. 147, p. 42-49 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  37. Published

    Comparison of bacterial culture and qPCR testing of rectal and pen floor samples as diagnostic approaches to detect enterotoxic Escherichia coli in nursery pigs

    Weber, N. R., Nielsen, Jens Peter, Hjulsager, C. K., Jorsal, S. E., Haugegaard, S., Hansen, C. F. & Pedersen, Ken Steen, 2017, In: Preventive Veterinary Medicine. 143, p. 61-67 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  38. Published

    Description of low and high pathogenic diarrheic outbreaks in nursery pigs

    Weber, N. R., Nielsen, Jens Peter & Pedersen, Ken Steen, 2017, 9th European Sumposium of Porcine Health Management: Proceedings. p. 243 1 p.

    Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsResearchpeer-review

  39. Published

    Effect of treatment with doxycycline and tylosine on excretion of E. coli F18 in faecal pen floor samples

    Weber, N. R., Pedersen, Ken Steen & Nielsen, Jens Peter, 2017, 9th Eurropean Symposium of Porcine Health Management: Proceedings. 1 p.

    Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsResearchpeer-review

  40. 2016
  41. Published

    Comparison of the antimicrobial consumption in weaning pigs in Danish sow herds with different vaccine purchase patterns during 2013

    Temtem, C., Kruse, Amanda Brinch, Nielsen, Liza Rosenbaum, Pedersen, Ken Steen & Alban, L., 1 Oct 2016, In: Porcine Health Management. 2, 12 p., 23.

    Research output: Contribution to journalJournal articleResearchpeer-review

  42. Published

    Clinical relevant antibiotic resistance in Escherichia coli from urinary tract infections in sows

    Leihardt, L. K. T., Pedersen, Ken Steen & Nielsen, Jens Peter, Jun 2016. 1 p.

    Research output: Contribution to conferencePosterResearchpeer-review

  43. Published

    Diagnostic performance of bacteriological culture of urine samples from culled sows, using histopathologically demonstrated cystitis as gold standard

    Leihardt, L. K. T., Pedersen, Ken Steen, Leifsson, P. S. & Nielsen, Jens Peter, Jun 2016. 1 p.

    Research output: Contribution to conferencePosterResearchpeer-review

  44. Published

    Effect of oral doxycycline and tylosine treatment on faecal Lawsonia intracellularis excretion

    Weber, N. R. & Pedersen, Ken Steen, Jun 2016. 1 p.

    Research output: Contribution to conferencePosterResearchpeer-review

  45. Published

    Infection dynamics of intestinal pathogens in batches of non-medicated diarrheic nursery pigs

    Weber, N. R., Pedersen, Ken Steen & Nielsen, Jens Peter, Jun 2016. 1 p.

    Research output: Contribution to conferencePosterResearchpeer-review

  46. Published

    Pen-level agreement of antimicrobial resistance from pooled faecal samples at pen level and diarrhoeic pigs

    Weber, N. R., Pedersen, Ken Steen & Nielsen, Jens Peter, Jun 2016. 1 p.

    Research output: Contribution to conferenceConference abstract for conferenceResearchpeer-review

  47. Published

    Prevalence of virulence genes and haemolytic activity in Escherichia coli Associated with diarrhoea in grower pigs

    Weber, N. R., Pedersen, Ken Steen & Nielsen, Jens Peter, Jun 2016. 1 p.

    Research output: Contribution to conferencePosterResearchpeer-review

  48. Published

    The impact of vaccination on the consumption of antimicrobials in Danish pig herds, 2013

    Temtem, C., Alban, L., Nielsen, Liza Rosenbaum, Pedersen, Ken Steen & Kruse, Amanda Brinch, Jun 2016. 1 p.

    Research output: Contribution to conferenceConference abstract for conferenceResearchpeer-review

  49. Published

    Cab pooled pen floor samples be used for diagnosing Escherichia coli F18 positive diarrhoeic nursery pigs?

    Weber, N. R., Pedersen, Ken Steen & Nielsen, Jens Peter, 2016. 1 p.

    Research output: Contribution to conferenceConference abstract for conferenceResearchpeer-review

  50. 2015
  51. Published

    Occurrence of diarrhoea and intestinal pathogens in non-medicated nursery pigs

    Weber, N. R., Nielsen, Jens Peter, Jakobsen, A. S., Pedersen, L., Hansen, C. F. & Pedersen, Ken Steen, 30 Sep 2015, In: Acta Veterinaria Scandinavica (Online). 57, 6 p., 64.

    Research output: Contribution to journalJournal articleResearchpeer-review

  52. 2014
  53. Gastric ulcers in nursery pigs.

    Pedersen, Ken Steen, Guedes, R. M. C., Angen, Ø., Ståhl, M., Hjulsager, C. K., Larsen, Lars, Nielsen, J. P., Bækbo, P. & Jensen, Tim Kåre, 2014.

    Research output: Contribution to conferenceConference abstract for conferenceResearchpeer-review

  54. Published

    Herd diagnosis of low pathogen diarrhoea in growing pigs: a pilot study

    Pedersen, Ken Steen, Johansen, M., Angen, Ø., Jorsal, S. E. L., Nielsen, Jens Peter, Jensen, Tim Kåre, Guedes, R., Ståhl, M. & Bækbo, P., 2014, In: Irish Veterinary Journal (Online). 67, 8 p., 24.

    Research output: Contribution to journalJournal articleResearchpeer-review

  55. Published

    Pooling of porcine fecal samples for quantification of Lawsonia intracellularis by real-time polymerase chain reaction

    Pedersen, Ken Steen, Johansen, M., Jorsal, S. E. L., Nielsen, Jens Peter, Bækbo, P. & Angen, Ø., 2014, In: Journal of Veterinary Diagnostic Investigation. 26, 3, p. 342-345 4 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  56. 2013
  57. Published

    Crude dietary protein and particle size in feed is not associated to diarrhoea in Danish nursery pigs

    Pedersen, Ken Steen, Jakobsen, A. T., Pedersen, L. L., Angen, Ø., Hansen, C. F. & Nielsen, Jens Peter, 2013, Proceedings of the Joint Meeting of the 5th European Symposium of Porcine Health Management and the 50th Anniversary Meeting of the Pig Veterinary Society of Great Britain, Edinburgh, UK, 22nd - 24th May 2013. Pig Veterinary Society, p. 150 1 p.

    Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsResearch

  58. Published

    Diagnostic performance of fecal quantitative real-time polymerase chain reaction for detection of Lawsonia intracellularis–associated proliferative enteropathy in nursery pigs

    Pedersen, Ken Steen, Stege, Helle, Jensen, Tim Kåre, Guedes, R., Ståhl, M., Nielsen, Jens Peter, Hjulsager, C. K., Larsen, L. E. & Angen, Ø., 2013, In: Journal of Veterinary Diagnostic Investigation. 25, 3, p. 336-340 5 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  59. Published

    Evaluation of farmers' diagnostic performance for detection of diarrhoea in nursery pigs using digital pictures of faecal pools

    Pedersen, Ken Steen & Strunz, A. M., 2013, In: Acta Veterinaria Scandinavica (Online). 55, 6 p., 72.

    Research output: Contribution to journalJournal articleResearchpeer-review

  60. 2012
  61. Published

    Association between avaerage daily gain, faecal dry matter content and concentration of Lawsonia intracellularis in faeces

    Pedersen, Ken Steen, Skrubel, R., Stege, Helle, Angen, Ø., Ståhl, M., Hjulsager, C. K., Larsen, L. E. & Nielsen, Jens Peter, 2012, In: Acta Veterinaria Scandinavica (Online). 54, 58, 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  62. Published

    Association between faecal load of Lawsonia intracellularis and pathological findings of proliferative enteropathy in pigs with diarrhoea

    Pedersen, Ken Steen, Ståhl, M., Guedes, R. M. C., Angen, Ø., Nielsen, Jens Peter & Jensen, Tim Kåre, 2012, In: B M C Veterinary Research. 8, 7 p., 198.

    Research output: Contribution to journalJournal articleResearchpeer-review

  63. Published

    Demonstration of non-specific colitis and increased crypt depth in colon of weaned pigs with diarrhea

    Pedersen, Ken Steen, Kristensen, C. S. & Nielsen, Jens Peter, 2012, In: Veterinary Quarterly. 32, 1, p. 45-49 5 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  64. Published

    Farmers and veterinarians have equal diagnostic ability in relation to assessment of diarrhea in growing pigs

    Pedersen, Ken Steen & Strunz, A. M., 2012, 22nd International Pig Veterinary Society Congress. International Pig Veterinary Society, p. 282 1 p.

    Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsResearchpeer-review

  65. Published

    Lawsonia infektion i grise uden diarré

    Skrubel, R. & Pedersen, Ken Steen, 2012, In: Dyrlaegemagasinet for Praktiserende Dyrlaeger. 9, 3, p. 32-34 3 p.

    Research output: Contribution to journalJournal articleResearch

  66. Published

    Occurrence of diarrhea in non-medicated growing pigs

    Jakobsen, A. T., Pedersen, Ken Steen & Nielsen, Jens Peter, 2012, IPVS 2012 Korea: 22nd International Pig Veterinary Society Congress. Vol. 1. p. 285 1 p.

    Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsResearch

  67. Published

    Occurrence of diarrhoea in non.medicated growing pigs in Denmark: a cross-sectional study

    Jakobsen, A. T., Pedersen, Ken Steen & Nielsen, Jens Peter, 2012, 4th European Symposium of Porcine Health Management: Programme & abstract book. European College of Porcine Health Management, p. 167 1 p.

    Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsResearchpeer-review

  68. Published

    Occurrence of intestinal infections in non-medicted growing pigs in Denmark: a case control study

    Pedersen, L., Pedersen, Ken Steen, Angen, Ø. & Nielsen, Jens Peter, 2012, 4th European Symposium of Porcine Health Managaement: Programme & abstract book. European College of Porcine Health Management, p. 190 1 p.

    Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsResearchpeer-review

  69. Published

    PCR diagnosis of PRRS virus in oral fluids from weaned Danish pigs

    Heiselberg, P. R., Hjulsager, C. K., Pedersen, Ken Steen, Nielsen, Jens Peter, Kristensen, C. S., Breum, S. Ø. & Larsen, L. E., 2012, IPVS 2012 Korea: 22nd International Pig Veterinary Society Congress. Vol. 2. p. 1013 1 p.

    Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsResearch

  70. Published

    Pooling of faecal samples for quantitative assessment of Lawsonia intreacellularis excretion levels

    Pedersen, Ken Steen, Angen, Ø. & Nielsen, Jens Peter, 2012, IPVS 2012 Korea: 22nd International Pig Veterinary Society Congress. Vol. 1. p. 284 1 p.

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearch

  71. Published

    Prediction of the growth retarding effect og Lawsonia intracellularis using mean q-PCR results at pen-level

    Pedersen, Ken Steen, Skrubel, R., Ståhl, M., Angen, Ø., Stege, Helle & Nielsen, Jens Peter, 2012, IPVS 2012 Korea: 22nd International Pig Veterinary Society Congress. Vol. 1. p. 669 1 p.

    Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsResearch

  72. Published

    Real-time PCR testing for Porcine Circovirus Type 2 and Lawsonia intracellularis to assess diarrhoea

    Holyoake, P. K., Hjulsager, C. K., Larsen, L. E., Pedersen, Ken Steen, Johansen, M., Stege, Helle, Moore, K., Ståhl, M., Angen, Ø. & Nielsen, Jens Peter, 2012, 4th European Symposium of Porcine Health Management: Programme & abstract book. European College of Porcine Health Management, p. 141 1 p.

    Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsResearchpeer-review

  73. Published

    Smågrisediarre: kliniske, patologiske og mikrobiologiske forhold ved klinisk smågrisediarre

    Pedersen, Ken Steen, 2012, In: Dansk Veterinaertidsskrift. 95, 6, p. 18-22 5 p.

    Research output: Contribution to journalJournal articleResearch

  74. Published

    Virus kan påvises i spyt fra grise

    Heiselberg, P. R., Christensen, S., Hjulsager, C. K., Pedersen, Ken Steen, Stege, Helle, Nielsen, Jens Peter, Larsen, L. E. & Kristensen, C. S., 2012, In: Hyologisk. 5, p. 20-21 2 p.

    Research output: Contribution to journalJournal articleResearch

  75. Published

    Within-day repeatability for absolute quantification of Lawsonia intracellularis bacteria in feces from growing pigs

    Pedersen, Ken Steen, Pedersen, K., Hjulsager, C. K., Larsen, L. E., Ståhl, M., Angen, Ø., Stege, Helle & Nielsen, Jens Peter, 2012, In: Journal of Veterinary Diagnostic Investigation. 24, 5, p. 968-970 3 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  76. Published

    You can pool faecal samples from individual pigs to test for Porcine Circovirus Type 2 and Lawsonia intracellularis using rel-time PCRs

    Holyoake, P. K., Hjulsager, C. K., Larsen, L. E., Pedersen, Ken Steen, Johansen, M., Stege, Helle, Moore, K., Ståhl, M., Angen, Ø. & Nielsen, Jens Peter, 2012, 4th European Symposium of Porcine Health Management: Programme & abstract book. European College of Porcine Health Management, p. 142 1 p.

    Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsResearchpeer-review

  77. 2011
  78. Published

    Correlation between quantitative faecal excretion of Lawsonia intracellularis and fecal dry matter in pigs with gross lesions of proliferative enteropathy

    Pedersen, Ken Steen, Staahl, M., Angen, Ø., Guedes, R., Jensen, T., Jorsal, S. E., Stege, Helle & Nielsen, Jens Peter, May 2011. 1 p.

    Research output: Contribution to conferencePosterResearch

  79. Published

    Increased quantitative excretion of Lawsonia intracellularis is associated with decreased average daily gain in weaned pigs

    Pedersen, Ken Steen, Skrubel, R., Staahl, M., Angen, Ø., Stege, Helle & Nielsen, Jens Peter, May 2011, Proceedings of the 3rd European Symposium of Porcine Health Management, Espoo, Finland 2011: May25th -27th 2011 - Dipoli Congress Center, Espoo Finland. 1 ed. Finland, p. 88 1 p.

    Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsResearch

  80. Published

    Lawsonia uden diarré

    Skrubel, R. & Pedersen, Ken Steen, 2011, In: Hyologisk. 33, 5, p. 31-33 3 p.

    Research output: Contribution to journalJournal articleResearch

  81. Published

    Agreement between culture of intestinal and fecal samples for Escherichia coli and Brachyspira spp.

    Pedersen, Ken Steen, Nielsen, Jens Peter & Angen, Ø., 2011, Proceedings of the 21st International Pig Veterinary Society Congress. D'Allaire, S. & Friendship, R. (eds.). p. 91 1 p.

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearch

  82. Published

    Clinical predictors of diarrhoea

    Pedersen, Ken Steen, Stege, Helle, Bækbo, P. & Nielsen, Jens Peter, 2011. 1 p.

    Research output: Contribution to conferencePosterResearch

  83. Published

    Diurnal variation of diarrhoeic faecal pools on weaner pig pen floors

    Pedersen, Ken Steen & Nielsen, Jens Peter, 2011. 1 p.

    Research output: Contribution to conferencePosterResearch

  84. Published

    Estimates of the between pen variation in outbreaks of acute diarrhea

    Pedersen, Ken Steen, Stege, Helle, Bækbo, P. & Nielsen, Jens Peter, 2011. 1 p.

    Research output: Contribution to conferencePosterResearch

  85. Published
  86. Published

    Evaluation of a microwave method for dry matter detemination in faecal samples from weaned pigs with or without clinical diarrhoea

    Pedersen, Ken Steen, Stege, Helle & Nielsen, Jens Peter, 2011, In: Preventive Veterinary Medicine. 100, 3-4, p. 163-170 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  87. Published

    Intra- and inter-observer agreement when using a descriptive classification scale for clinical assessment of faecal consistency in growing pigs

    Pedersen, Ken Steen & Toft, N., 2011, In: Preventive Veterinary Medicine. 98, 4, p. 288-291 4 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  88. Published

    Observations of variable inter-observer agreement for clinical evaluation of faecal consistency in grow-finishing pigs

    Pedersen, Ken Steen, Holyoake, P., Stege, Helle & Nielsen, Jens Peter, 2011, In: Preventive Veterinary Medicine. 98, 4, p. 284-287 4 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  89. Published

    PCR diagnosis of enteritis caused by Lawsonia intracellularis in growing pigs

    Pedersen, Ken Steen, 2011, Department of Large Animal Sciences, University of Copenhagen. 95 p.

    Research output: Book/ReportPh.D. thesisResearch

  90. Published

    Ukendte årsager til diarre dominerer i klimastalden

    Pedersen, Ken Steen, 2011, With you all the way: Dansk Veterinær Hyologisk Selskab Efterårsmøde 2011. Dansk Veterinær Hyologisk Selskab, 2 p.

    Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsResearch

  91. 2010
  92. Published

    A preliminary study of the effects of treating diarrhoeic pigs with oxytetracycline on shedding of Porcine Circovirus Type 2 and Lawsonia intracellularis

    Holyoake, P., Hjulsager, C. K., Larsen, L. E., Pedersen, Ken Steen, Johansen, M., Stege, Helle, Orchard, B., Stahl, M., Angen, O. & Nielsen, Jens Peter, Jul 2010, Proceedings of IPVS 2010. p. 464 1 p.

    Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsResearchpeer-review

  93. Published

    A preliminary study of the association between porcine cicovirus type 2, Lawsonia intracellularis and diarrhoea in growing pigs

    Holyoake, P. K., Hjulsager, C. K., Larsen, L. E., Pedersen, Ken Steen, Johansen, M., Stege, Helle, Orchard, B., Ståhl, M., Angen, Ø. & Nielsen, Jens Peter, 2010, IPVS 2010: proceedings. p. 284 1 p.

    Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsResearch

  94. Published

    A preliminary study of the association between porcine circovirus type 2 in outbreaks of diarrhoea in growing pigs in Denmark

    Holyoake, P., Pedersen, Ken Steen, Johansen, M., Stege, Helle, Hjulsager, C. & Nielsen, Jens Peter, 2010, Manipulating pig production XII: proceedings of the 12. biennial conference of the Australiasian Pig Science Association (APSA), Cairns, Australia, 2009. Barneveld, R. J. V. (ed.). Australasian Pig Science Association (INC.), p. 129 1 p.

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

  95. Published

    Clinical findings in outbreaks of acute diarrhea with indication of antibiotic treatment

    Pedersen, Ken Steen, Jorsal, S. E. L., Stege, Helle, Bækbo, P. & Nielsen, Jens Peter, 2010, Proceedings of the 21st International Pig Veterinary Society Congress. D'Allaire, S. & Friendship, R. (eds.). p. 241 1 p.

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearch

  96. Published

    Diagnostic performance of different fecal Lawsonia intracellularis - specific polymerase chain reaction assays as diagnostic tests for proliferative enteropathy in pigs: a review

    Pedersen, Ken Steen, Holyoake, P., Stege, Helle & Nielsen, Jens Peter, 2010, In: Journal of Veterinary Diagnostic Investigation. 22, 4, p. 487-494 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  97. Published

    Diurnal variation of fecal dry matter in pigs

    Pedersen, Ken Steen, Pedersen, K., Stege, Helle & Nielsen, Jens Peter, 2010, Proceedings of the 21st International Pig Veterinary Society Congress. D'Allaire, S. & Friendship, R. (eds.). p. 755 1 p.

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearch

  98. Published

    Effect of diarrhea on average daily weight gain in grower-finisher pigs

    Johansen, M., Stockmarr, A., Kristensen, C. S., Bækbo, P., Nielsen, Jens Peter, Stege, Helle & Pedersen, Ken Steen, 2010, Proceedings of the 21st International Pig Veterinary Society Congress. D'Allaire, S. & Friendship, R. (eds.). p. 237 1 p.

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearch

  99. Published

    Estimates of the between pen variation in outbreaks of acute diarrhea

    Pedersen, Ken Steen, Stege, Helle, Bækbo, P. & Nielsen, Jens Peter, 2010, Proceedings: the 2nd European Symposium on Porcine Health Management, Germany, 2010. Beilage, E. G. & Blaha, T. (eds.). Hannover: University of Veterinary Medicine, p. 123 1 p.

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

  100. Published

    Evaluation of a microwave procedure for fecal dry matter determination

    Pedersen, Ken Steen, Pedersen, K., Stege, Helle & Nielsen, Jens Peter, 2010, Proceedings of the 21st International Pig Veterinary Society Congress. D'Allaire, S. & Friendship, R. (eds.). p. 754 1 p.

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearch

  101. Published

    Evaluation of microwave procedure for fecal dry matter determination

    Pedersen, Ken Steen, Pedersen, K., Stege, Helle & Nielsen, Jens Peter, 2010. 1 p.

    Research output: Contribution to conferencePosterResearch

  102. Published

    Intestinal pathogens in acute diarrhea in weaners: a case control study in 20 Danish herds

    Pedersen, Ken Steen, Angen, Ø., Jorsal, S. E. L., Stege, Helle & Nielsen, Jens Peter, 2010, Proceedings of the 21st International Pig Veterinary Society Congress. D'Allaire, S. & Friendship, R. (eds.). p. 756 1 p.

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearch

  103. Published

    Intestinal pathology of acute diarrhea in weaners: a case control stydy in 20 Danish herds

    Pedersen, Ken Steen, Guedes, R. M., Jorsal, S. E. L., Stege, Helle, Nielsen, Jens Peter & Jensen, T. K., 2010, Proceedings of the 21st International Pig Veterinary Society Congress. D'Allaire, S. & Friendship, R. (eds.). p. 242 1 p.

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearch

  104. Published

    Quantitative assessment of Lawsonia intracellularis by PCR in outbreaks of acute diarrhea in weaners

    Pedersen, Ken Steen, Staahl, M., Angen, Ø., Jorsal, S. E. L., Stege, Helle & Nielsen, Jens Peter, 2010, Proceedings: the 2nd European Symposium on Porcine Health Management, Germany, 2010. Beilage, E. G. & Blaha, T. (eds.). Hannover: University of Veterinary Medicine, p. 49-50 2 p.

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

  105. Published

    Quantitative assessment of Lawsonia intracellularis in feces by real-time PCR

    Pedersen, Ken Steen, Pedersen, K., Ståhl, M., Angen, Ø., Hjulsager, C. K., Larsen, L. E., Stege, Helle & Nielsen, Jens Peter, 2010. 1 p.

    Research output: Contribution to conferencePosterResearch

  106. Published

    Quantitative assessment of Lawsonia intracllularis infeces by real-time PCR

    Pedersen, Ken Steen, Pedersen, K., Stahl, M., Angen, Ø., Hjulsager, C. K., Larsen, L. E., Stege, Helle & Nielsen, Jens Peter, 2010, Proceedings of IPVS 2010. p. 702 1 p.

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

  107. Published

    Risk factors for acute diarrhea

    Pedersen, Ken Steen, Stege, Helle, Bækbo, P. & Nielsen, Jens Peter, 2010, Proceedings: the 2nd European Symposium on Porcine Health Management, Germany, 2010. Beilage, E. G. & Blaha, T. (eds.). Hannover: University of Veterinary Medicine, p. 122 1 p.

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

  108. 2009
  109. Published

    A Preliminary Study of Porcine Circovirus Type 2 in Outbreaks of Diarrhoea in Growing Pigs in Denmark

    Holyoake, P., Pedersen, Ken Steen, Johansen, M., Stege, Helle, Hjulsager, C. K. & Nielsen, Jens Peter, 2009, Proceedings of the Twelfth Biennial Conference of the Australasian Pig Science Association (APSA). p. 129 1 p.

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

  110. Published

    Diagnosis of enteritis in weaners and growers

    Pedersen, Ken Steen, Jorsal, S. E., Jensen, T. K., Guedes, R., Stege, Helle, Angen, Ø. & Nielsen, J. P., 2009, Proceedings - 1st ESPHM. p. 37 1 p.

    Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsResearch

  111. Published

    Diarrédiagnostik - PCV2 eller Lawsonia?

    Pedersen, Ken Steen, 2009, Dansk Veterinær Hyologisk Selskab. 2 p.

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearch

  112. Published

    Differential diagnosis of diarrhoea in grower/finisher pigs in Denmark

    Holyoake, P., Pedersen, Ken Steen, Johansen, M., Stege, Helle & Nielsen, Jens Peter, 2009, Proceedings of the 2009 Australian Pig Veterinarians. 3 p.

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

  113. Published

    Efficacy of medicating grower pigs with injectable oxytetracycline during outbreaks of diarrhoea

    Holyoake, P., Pedersen, Ken Steen, Johansen, M., Stege, Helle, Dhand, N. & Nielsen, Jens Peter, 2009, Manipulating pig production XII: proceedings of the twelfth biennial conference of the Australasian Pig Science Association (APSA), Cairns, Australia, 2009. Australasian Pig Science Association (INC.), p. 41 1 p.

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

  114. Published

    Obejctive assessment of faecal consistency in pigs part 2: Evaluationof 4 descriptive categories with text and pictures for assessment of faecal consistency

    Pedersen, Ken Steen, Stege, Helle & Nielsen, Jens Peter, 2009, Proceedings of the 1st ESPHM. p. 65 1 p.

    Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsResearch

  115. Published

    Objective assessment of faecal consistency in pigs part 1: inter-observer agreement for assessment of faecal consistency

    Pedersen, Ken Steen, Holyoake, P. K., Stege, Helle & Nielsen, Jens Peter, 2009, Proceedings: 1st ESPHM, 2009. Faculty of Life Sciences, University of Copenhagen, p. 64 1 p.

    Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsResearch

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