Jens Peter Nielsen

Jens Peter Nielsen

Professor

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    1. 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 proceeding › Conference abstract in proceedings › Research › peer-review

    2. 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 proceeding › Article in proceedings › Research › peer-review

    3. Published

      A descriptive study of acute outbreaks of respiratory disease in Norwegian fattening pig herds

      Cohen, L. M., Grøntvedt, C. A., Klem, T. B., Gulliksen, S. M., Ranheim, B., Nielsen, Jens Peter, Valheim, M. & Kielland, C., 2020, In: Acta Veterinaria Scandinavica. 62, 1, 13 p., 35.

      Research output: Contribution to journal › Journal article › Research › peer-review

    4. Published

      A longitudinal study of serological patterns of respiratory infections in nine infected Danish swine herds

      Andreasen, M., Nielsen, Jens Peter, Bækbo, P., Willeberg, P. & Bøtner, A., 2000, In: Preventive Veterinary Medicine. 45, p. 221-235 15 p.

      Research output: Contribution to journal › Journal article › Research › peer-review

    5. Published

      A meta-analysis comparing the effect of vaccines against Mycoplasma hyopneumoniae on daily weight gain

      Jensen, C. S., Ersbøll, A. K. & Nielsen, Jens Peter, 2000. 3 p.

      Research output: Contribution to conference › Paper › Research

    6. Published

      A meta-analysis comparing the effect of vaccines against Mycoplasma hyopneumoniae on daily weight gain in pigs

      Jensen, C. S., Ersbøll, A. K. & Nielsen, Jens Peter, 2002, In: Preventive Veterinary Medicine. 54, 3, p. 265-278 14 p.

      Research output: Contribution to journal › Journal article › Research › peer-review

    7. Published

      A meta-analysis evaluating the effect on daily weight gain of vaccines against Mycoplasma hyopneumoniae

      Jensen, C. S., Ersbøll, A. K. & Nielsen, Jens Peter, 2000. 1 p.

      Research output: Contribution to conference › Paper › Research

    8. Published

      A new EU-project on pre-harvest and harvest control options based on epidemiological, diagnostic and economic research

      Lo Fo Wong, D. M. A., Hald, T., Nielsen, Jens Peter & Willeberg, P., 1997. 3 p.

      Research output: Contribution to conference › Paper › Research

    9. 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 proceeding › Conference abstract in proceedings › Research

    10. 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 proceeding › Article in proceedings › Research › peer-review

    11. 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 proceeding › Conference abstract in proceedings › Research › peer-review

    12. Published

      A randomised clinical trial on the efficacy of oxytetracycline dose through water medication of nursery pigs on diarrhoea, faecal shedding of Lawsonia intracellularis and average daily weight gain

      Larsen, Inge, Hjulsager, C. K., Holm, A., Olsen, John Elmerdahl, Nielsen, Søren Saxmose & Nielsen, Jens Peter, 1 Jan 2016, In: Preventive Veterinary Medicine. 123, p. 52-59 8 p.

      Research output: Contribution to journal › Journal article › Research › peer-review

    13. Published

      A reduced CP level without medicinal zinc oxide does not alter the intestinal morphology in weaned pigs 24 days post-weaning

      Larsen, Christina, Lynegaard, J. C., Pedersen, Anni Øyan, Kjeldsen, N. J., Hansen, C. F., Nielsen, Jens Peter & Williams, Charlotte Amdi, 2021, In: Animal. 15, 4, 100188.

      Research output: Contribution to journal › Journal article › Research › peer-review

    14. Published

      A reproducible Stretococcus suis infection model using acetic acid as predisposer

      Bak, H., Nielsen, B., Nielsen, Jens Peter & Riising, H. J., 2002. 1 p.

      Research output: Contribution to conference › Conference abstract for conference › Research › peer-review

    15. Published

      A very low cp level reduced diarrhoea and productivity in weaner pigs, but no differences between post-weaning diets including soybean meal or soy protein concentrate were found

      Lynegaard, J. C., Kjeldsen, N. J., Bache, J. K., Weber, N. R., Hansen, C. F., Nielsen, Jens Peter & Williams, Charlotte Amdi, 2021, In: Animals. 11, 3, p. 1-13 13 p., 678.

      Research output: Contribution to journal › Journal article › Research › peer-review

    16. Published

      Actinobacillus pleuropneumoniae, nye aspekter i forskningen

      Sørensen, V., Andresen, L. O., Angen, Ø., Gram, T., Heegaard, P., Klausen, J. & Nielsen, Jens Peter, 1997, In: Dansk Veterinærtidsskrift. 80, 7, p. 284-287 4 p.

      Research output: Contribution to journal › Journal article › Research

    17. 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 proceeding › Article in proceedings › Research

    18. Published

      Airborne A. pleuropneumoniae infection pressure in pig fattening units

      Nielsen, Jens Peter, Hagedorn-Olsen, T., Ahrens, P., Dahl, P. & Bækbo, P., 2000. 1 p.

      Research output: Contribution to conference › Paper › Research

    19. Published

      Airborne transmission of A. PLEUROPNEUMONIAE and prrs virus between pig units

      Kristensen, C. S., Bøtner, A., Angen, Ø., Sørensen, V., Jorsal, S. E., Takai, H., Barfod, K. & Nielsen, Jens Peter, 2002. 1 p.

      Research output: Contribution to conference › Conference abstract for conference › Research › peer-review

    20. Published

      Airborne transmission of Porcine Reproductive and Respiratory Syndrom Virus between pig units located at close range.

      Kristensen, C. S., Bötner, A., Nielsen, Jens Peter & Jorsal, S. E., 2003. 2 p.

      Research output: Contribution to conference › Paper › Research

    21. Published

      An Actinobacillus pleuropneumoniae PCR typing system based on the apx and omlA genes: evaluation of isolates from lungs and tonsils of pigs

      Gram, T., Ahrens, P., Andreasen, M. & Nielsen, Jens Peter, 2000, In: Veterinary Microbiology. 75, p. 43-57 15 p.

      Research output: Contribution to journal › Journal article › Research › peer-review

    22. Published

      An experimental model for iron deficiency anemia in sows and offspring induced by blood removal during gestation

      Rydal, Martin Peter, Bhattarai, S. & Nielsen, Jens Peter, 2021, In: Animals. 11, 10, 2848.

      Research output: Contribution to journal › Journal article › Research › peer-review

    23. Published

      An observational field study of porcine post-weaning diarrhea: clinical and microbiological findings, and fecal pH-measurements as a potential diagnostic tool

      Eriksen, E. Ø., Kudirkiene, E., Barington, Kristiane, Goecke, Nicole Bakkegård, Blirup-Plum, Sophie Amalie, Nielsen, Jens Peter, Olsen, John Elmerdahl, Jensen, Henrik Elvang, Pankoke, K., Larsen, Lars, Liu, G. & Pedersen, Ken Steen, 2023, In: Porcine Health Management. 9, 33.

      Research output: Contribution to journal › Journal article › Research › peer-review

    24. Published

      Antibioottien järkevä käyttö Tanskan sikataloudessa

      Nielsen, Jens Peter, 2015, In: Suomen Eläinlääkärilehti. 121, 9, p. 526-529 4 p.

      Research output: Contribution to journal › Journal article › Communication

    25. Published

      Antibiotikaforbrug i dansk slagtesvineproduktion: besætningsvariation og risikofaktorer for højt antibiotikaforbrug

      Petersen, H. H. & Nielsen, Jens Peter, 2001. 5 p.

      Research output: Contribution to conference › Paper › Research

    26. Published

      Antibiotikaforbrug i danske slagtesvinebesætninger år 2000

      Okholm Nielsen, E., Hassing, A., Wachmann, H., Bækbo, P., Petersen, H. H. & Nielsen, Jens Peter, 2002, In: Landsudvalget for Svin. 581, 11 p.

      Research output: Contribution to journal › Journal article › Communication

    27. Published

      Antibody response in sows and piglets following vaccination against Mycoplasma hyoopneumoniae, toxigenic Pasteurella multocida, and Actinobacillus pleuropneumoniae

      Kristensen, C. S., Andreasen, M., Ersbøll, A. K. & Nielsen, Jens Peter, 2004, In: Canadian Journal of Veterinary Research-Revue Canadienne de Recherche Veterinaire. 68, p. 66-70 5 p.

      Research output: Contribution to journal › Journal article › Research › peer-review

    28. Published

      Antimicrobial consumption in Danish finishing herds

      Nielsen, Jens Peter, Petersen, H. H. & Bak, H., 2002. 1 p.

      Research output: Contribution to conference › Conference abstract for conference › Research › peer-review

    29. Published

      Application of acute phase protein measurements in veterinary clinical chemistry

      Petersen, H. H., Nielsen, Jens Peter & Heegaard, P. M. H., 2004, In: Veterinary Research. 35, 2, p. 163-187 24 p.

      Research output: Contribution to journal › Journal article › Research › peer-review

    30. Published

      Assessment of hemoglobin concentration in relation to sow reproductive stage and parity

      Castevens, K., Ferreira, J. B., Gillespie, T., Olsen, C., Nielsen, Jens Peter & Almond, G., Oct 2020, In: Journal of Swine Health and Production. 28, 5, p. 254-257 5 p.

      Research output: Contribution to journal › Journal article › Research › peer-review

    31. Published

      Association between Lean Meat Percentage and Average Daily Weight Gain in Danish Pigs

      Stege, Helle, Jensen, T. B., Bagger, J., Keller, F., Nielsen, Jens Peter & Ersbøll, A. K., 2011, In: Preventive Veterinary Medicine. 101, 1-2, p. 121-123

      Research output: Contribution to journal › Journal article › Research › peer-review

    32. 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 journal › Journal article › Research › peer-review

    33. Published

      Association between average daily weight gain and meat percent in Danish slaughterpigs

      Stege, Helle, Bagger, J., Keller, F. & Nielsen, Jens Peter, 2006, Proceedings of the 19th IPVS Congress: invited and oral presentations. Samfundslitteratur, p. 311 1 p.

      Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research

    34. 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 journal › Journal article › Research › peer-review

    35. Published

      Association between gastric content fluidity and pars oesophageal ulcers in nursery pigs: a cross-sectional study of high-risk Danish herds using commercial feed

      Peralvo Vidal, Juan Miguel, Weber, N. R., Nielsen, Jens Peter, Denwood, Matt, Haugegaard, S. & Pedersen, Anni Øyan, 2021, In: Porcine Health Management. 7, 19.

      Research output: Contribution to journal › Journal article › Research › peer-review

    36. Published

      Association between hematological status at weaning and weight gain post-weaning in piglets

      Bhattarai, S. & Nielsen, Jens Peter, 2015, In: Livestock Science. 182, p. 64-68 5 p.

      Research output: Contribution to journal › Journal article › Research › peer-review

    37. 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 proceeding › Conference abstract in proceedings › Research › peer-review

    38. Published

      Association between sow and piglet blood hemoglobin concentrations and stillbirth risk

      Bhattarai, S., Framstad, T. & Nielsen, Jens Peter, 2019, In: Acta Veterinaria Scandinavica. 61, 1, 4 p., 61.

      Research output: Contribution to journal › Journal article › Research › peer-review

    39. Published

      Association of stillborn piglets and blood haemoglobin concentration in sows at farrowing

      Jensen, A., Bhattarai, S. & Nielsen, Jens Peter, Jun 2014, Proceedings of the 23rd International Pig Veterinary Society (IPVS) Congress. Vol. 2. p. 499 1 p. P.517

      Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research › peer-review

    40. Published

      Associations between housing system, management and lameness in slaughter pigs

      Nielsen, E. O., Hassing, A., Wachmann, H., Bækbo, P., Petersen, H. H. & Nielsen, Jens Peter, 2002. 1 p.

      Research output: Contribution to conference › Paper › Research

    41. Published

      Atrophic rhinitis in pigs: proposal for a revised definition.

      Pedersen, K. B., Nielsen, Jens Peter, Foged, N. T., Elling, F., Nielsen, N. C. & Willeberg, P., 20 Feb 1988, In: The Veterinary Record. 122, 8, p. 190-191 2 p.

      Research output: Contribution to journal › Letter › Research › peer-review

    42. Published

      Avis- og produktionssystemers indflydelse på sundhed, velfærd og produktionsøkonomi hos svin

      Houe, Hans & Nielsen, Jens Peter, 1999, Foulum: Cepros. 69 p. (CEPROS-report; No. nr. 3).

      Research output: Book/Report › Book › Education

    43. 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 journal › Journal article › Research › peer-review

    44. Published

      Batch variation in porcine circovirus type 2 viral loads in serum pools and oral fluid

      Nielsen, G. B., Nielsen, Jens Peter, Haugegaard, J. & Houe, Hans, 2017. 1 p.

      Research output: Contribution to conference › Poster › Research › peer-review

    45. Published

      Biomarkers in evaluation of antibiotic treatment: an experimental model of porcine Actinobacillus pleuropneumoniae infection

      Lauritzen, B., Lykkesfeldt, Jens, Angen, Ø., Nielsen, Jens Peter & Friis, C., 2002.

      Research output: Contribution to conference › Paper › Research

    46. 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 conference › Conference abstract for conference › Research › peer-review

    47. Published

      Cascade refining of European wheat for production of high-quality products for the paper industry

      Nielsen, Jens Peter & Schneider, M., 1997. 1 p.

      Research output: Contribution to conference › Paper › Research

    48. Published

      Characterization and distribution of Pasteurella species recovered from infected humans

      Holst, E., Rollof, J., Larsson, L. & Nielsen, Jens Peter, 1992, In: Journal of clinical microbiology. 30, 11, p. 2984-2987 4 p.

      Research output: Contribution to journal › Journal article › Research › peer-review

    49. Published

      Clinical assessment of shoulder lesions in Danish sows

      Stege, Helle, Strathe, J., Kristensen, Anders Ringgaard & Nielsen, Jens Peter, 2010. 1 p.

      Research output: Contribution to conference › Poster › Research › peer-review

    50. 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 proceeding › Article in proceedings › Research

    51. Published

      Clinical predictors of diarrhoea

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

      Research output: Contribution to conference › Poster › Research

    52. 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 conference › Poster › Research › peer-review

    53. Published

      Clinical utility and performance of sock sampling in weaner pig diarrhoea

      Pedersen, K. S., Okholm, E., Johansen, M., Angen, Ø., Jorsal, S. E., Nielsen, Jens Peter & Bækbo, P., 1 Jul 2015, In: Preventive Veterinary Medicine. 120, 3-4, p. 313-320 8 p.

      Research output: Contribution to journal › Journal article › Research › peer-review

    54. Published

      Colostral antibodies and duration of maternal immunity: Mycoplasma hyopneumoniae and Actinobaccillus pleuropneumoniae serotype 2

      Andreasen, M., Nielsen, Jens Peter & Bækbo, P., 2000. 1 p.

      Research output: Contribution to conference › Paper › Research

    55. Published

      Colostrum uptake - effect on health and daily gain until slaughter

      Nielsen, Jens Peter, Kjærsgaard, H. D. & Kristensen, C. S., 2004, IPVS: International Pig Veterinary Society. 1 p.

      Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research

    56. 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 journal › Journal article › Research › peer-review

    57. 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 journal › Journal article › Research › peer-review

    58. 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 journal › Journal article › Research › peer-review

    59. Published

      Comparison of virulence of different Actinobacillus pleuropneumoniae serotypes and biotypes using an aerosol infection model

      Jacobsen, M. J., Nielsen, Jens Peter & Nielsen, R., Apr 1996, In: Veterinary Microbiology. 49, 3-4, p. 159-168 10 p.

      Research output: Contribution to journal › Journal article › Research › peer-review

    60. Published

      Complete association between CHCF1 genotype and enterotoxigenic Escherichia coli F4ab-associated post-weaning diarrhea in a pig challenge trial

      Rydal, Martin Peter, Jørgensen, Claus Bøttcher, Gambino, Michela, Poulsen, Louise Ladefoged & Nielsen, Jens Peter, 2023, In: Veterinary Microbiology. 282, 109771.

      Research output: Contribution to journal › Journal article › Research › peer-review

    61. Published

      Confocal laser scanning microscopy and epifluorescence microscopy: means to study maturation and fertilisation of fox oocytes

      Farstad, W., Hyttel, P., Hafne, A. L. & Nielsen, Jens Peter, 2000. 1 p.

      Research output: Contribution to conference › Paper › Research

    62. Published

      Consumption of prescribed antimicrobials after the growth promoter termination in Denmark

      Nielsen, Jens Peter & Stege, Helle, 2006, Proceedings of the 19th IPVS Congress: Invited and oral presentations. Nielsen, J. P. & Jorsal, S. E. (eds.). Samfundslitteratur, p. 191 1 p.

      Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research

    63. 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 conference › Poster › Research

    64. 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 proceeding › Conference abstract in proceedings › Research

    65. 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 journal › Journal article › Research › peer-review

    66. Published

      Danish consumption of antimicrobials

      Nielsen, Jens Peter & Stege, Helle, 2005, In: International Pig Topics. p. 19 1 p.

      Research output: Contribution to journal › Journal article › Research › peer-review

    67. Published

      Data-quality issues and alternative variable-screening methods in a questionnaire-based study on subclinical Salmonella enterica infection in Danish pig herds

      Stege, Helle, Christensen, J., Nielsen, Jens Peter & Willeberg, P., 2001, In: Preventive Veterinary Medicine. 48, p. 35-54 10 p.

      Research output: Contribution to journal › Journal article › Research › peer-review

    68. Published

      Definition of progressive atrophic rhinitis.

      de Jong, M. F. & Nielsen, Jens Peter, 27 Jan 1990, In: Veterinary Record. 126, 4, p. 93 1 p.

      Research output: Contribution to journal › Letter › Research › peer-review

    69. Published

      Demonstration of airborne transmission of Actinobacillus pleuropneumoniae serotype 2 between simulated pig units located at close range

      Kristensen, C. S., Angen, Ø., Andreasen, M., Takai, H., Nielsen, Jens Peter & Jorsal, S. E., 2004, In: Veterinary Microbiology. 98, p. 243-249 7 p.

      Research output: Contribution to journal › Journal article › Research › peer-review

    70. Published

      Demonstration of airborne transmission of Actinobacillus pleuropneumoniae serotype 2 between simulated pig units located at close range

      Kristensen, C. S., Angen, Andreasen, M., Takai, H., Nielsen, Jens Peter & Jorsal, S. E., 5 Mar 2004, In: Veterinary Microbiology. 98, 3-4, p. 243-249 7 p.

      Research output: Contribution to journal › Journal article › Research › peer-review

    71. 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 journal › Journal article › Research › peer-review

    72. 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 proceeding › Conference abstract in proceedings › Research › peer-review

    73. Published

      Determination of tumor factor-a responsiveness in piglets around weaning using an ex vivo whole blood stimulation assay

      Carstensen, L., Røntved, C. M. & Nielsen, Jens Peter, 2005, In: Veterinary Immunology and Immunopathology. 105, p. 59-66 8 p.

      Research output: Contribution to journal › Journal article › Research › peer-review

    74. Published

      Development and epidemiological applications of a bacteriophage typing system for typing Pasteurella multocida

      Nielsen, Jens Peter, 1990, In: Journal of Clinical Microbiology.

      Research output: Contribution to journal › Journal article › Research › peer-review

    75. Published

      Development and evaluation of a selective and indicative medium for isolation of Actinobacillus pleuropneumoniae from tonsils

      Jacobsen, M. J. & Nielsen, Jens Peter, Nov 1995, In: Veterinary Microbiology. 47, 1-2, p. 191-197 7 p.

      Research output: Contribution to journal › Journal article › Research › peer-review

    76. Published

      Development of a typing system for epidemiological studies of porcine toxin-producing Pasteurella multocida ssp. multocida in Denmark

      Fussing, V., Nielsen, Jens Peter, Bisgaard, M. & Meyling, A., 1999, In: Veterinary Microbiology. 65, p. 61-74 14 p.

      Research output: Contribution to journal › Journal article › Research › peer-review

    77. Published

      Development of nondestructive screening methods for single kernel characterization of wheat

      Nielsen, Jens Peter, Pedersen, D. K. & Munck af Rosenschøld, Lars M, 2003, In: Cereal Chemistry. 80, 3, p. 274-280 7 p.

      Research output: Contribution to journal › Journal article › Research › peer-review

    78. Published

      Diagnostic findings in sows with gastric lesions

      Carstensen, L., Banga-Mboko, H., Madsen, M. T., Ersbøll, A. & Nielsen, Jens Peter, 2006, p. 100. 1001 p.

      Research output: Contribution to conference › Conference abstract for conference › Research

    79. 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 conference › Poster › Research › peer-review

    80. 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 journal › Journal article › Research › peer-review

    81. 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 journal › Journal article › Research › peer-review

    82. 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 proceeding › Article in proceedings › Research › peer-review

    83. Published

      Differentiation of PRRSv Type 1 and 2 serological responses by an immunofluorescence antibody assay

      Nielsen, G. B., Astrup, P., Nielsen, Jens Peter & Houe, Hans, 2015. 1 p.

      Research output: Contribution to conference › Poster › Research › peer-review

    84. Published

      Differentiation of toxigenic from nontoxigenic isolates of Pasteurella multocida by enzyme-linked immunosorbent assay

      Foged, N. T., Nielsen, Jens Peter & Pedersen, K. B., 1988, In: Journal of clinical microbiology. 26, 7, p. 1419-1420 2 p.

      Research output: Contribution to journal › Journal article › Research › peer-review

    85. Published

      Disease control and specific pathogen free pig production

      Nielsen, Jens Peter, 2014, Encyclopedia of Meat Sciences. 2 ed. Academic Press, Vol. 2. p. 186-189 4 p.

      Research output: Chapter in Book/Report/Conference proceeding › Encyclopedia chapter › Research

    86. Published

      Disponerende forhold for halthed hos slagtesvin

      Okholm Nielsen, E., Hassing, A., Wachmann, H., Bækbo, P., Petersen, H. H. & Nielsen, Jens Peter, 2002, In: Landsudvalget for Svin. 573, 3 p.

      Research output: Contribution to journal › Journal article › Communication

    87. 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 conference › Poster › Research

    88. 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 proceeding › Article in proceedings › Research

    89. Published

      Dose dependent establishment of subclinical S. Typhimurium infection in pigs and protection against homologous re-challenge

      Wigstrand, A., Nielsen, Jens Peter, Heisel, C., Lau Baggesen, D. & Dahl, J., 1997. 3 p.

      Research output: Contribution to conference › Paper › Research

    90. Published

      Dynamics of swine influenza infections in the farrowing unit of a Danish sow herd.

      Larsen, L. E., Nielsen, C. K., Aakerblom, S., Hjulsager, C. K., Nielsen, Jens Peter, Stege, Helle, Kristensen, C. S., Elvstrøm, A. & Lau, L., 2010. 1 p.

      Research output: Contribution to conference › Conference abstract for conference › Research › peer-review

    91. Published

      Early indicatiors of iron deficiency in piglets at weaning

      Bhattarai, S., Busch, M. E., Friendship, R., Martineau, G. & Nielsen, Jens Peter, 2014, Proceedings : 6th European Symposium of Porcine Health Management. p. 92 1 p. 21

      Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research › peer-review

    92. Published

      Early indicators of iron deficiency in large piglets at weaning

      Bhattarai, S. & Nielsen, Jens Peter, 2015, In: Journal of Swine Health and Production. 23, 1, p. 10-17 8 p.

      Research output: Contribution to journal › Journal article › Research › peer-review

    93. Published

      Early intervention with enrichment can prevent tail biting outbreaks in weaner pigs

      Lahrmann, H. P., Hansen, C. F., D´Eath, R. B., Busch, M. E., Nielsen, Jens Peter & Forkman, Björn, 2018, In: Livestock Science. 214, p. 272-277 6 p.

      Research output: Contribution to journal › Journal article › Research › peer-review

    94. 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 journal › Journal article › Research › peer-review

    95. Published

      Effect of UVB light on vitamin D status in piglets and sows

      Stricker Jakobsen, S., Nielsen, Jens Peter & Jakobsen, J., 2020, In: The Journal of Steroid Biochemistry and Molecular Biology. 200, 105637.

      Research output: Contribution to journal › Journal article › Research › peer-review

    96. Published

      Effect of aerial ammonia on porcine infection of the respiratory tract with toxigenic Pasteurella multocida

      Andreasen, M., Bækbo, P. & Nielsen, Jens Peter, 1999, In: Acta Veterinaria Scandinavica (Print Edition). 40, p. 197-203 7 p.

      Research output: Contribution to journal › Journal article › Research › peer-review

    97. Published

      Effect of batch production on coughing in Finishers

      Petersen, H. H., Nielsen, Jens Peter, Nielsen, E. O. & Wachmann, H., 2004. 1 p.

      Research output: Contribution to conference › Paper › Research

    98. Published

      Effect of breeding strategy and feeding system on the within-herd variation of lean mean percents in Danish slaughter pig herds

      Stege, Helle, Bagger, J., Nielsen, Jens Peter & Ersbøll, A. K., 2011, In: Preventive Veterinary Medicine. 101, p. 73-78 6 p.

      Research output: Contribution to journal › Journal article › Research › peer-review

    99. Published

      Effect of clinical signs in finishing pigs on serum haptoglobin concentration

      Petersen, H. H., Dideriksen, D., Christiansen, B. M. & Nielsen, Jens Peter, 2001. 2 p.

      Research output: Contribution to conference › Paper › Research

    100. 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 proceeding › Article in proceedings › Research

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