Jens Peter Nielsen

Search results

• 2025

  Can infectious omphalitis in piglets be clinically diagnosed during the first three days of life?

  Blirup-Plum, S. A., Jensen, H. E., Hartmann, K. T., Nielsen, S. S., Pankoke, K., Hansen, M. S., Pedersen, K. S., Larsen, I., Nielsen, J. P., Olsen, J. E., Kudirkiene, E., Braunstein, T. H. & Barington, K., 1 Feb 2025, In: B M C Veterinary Research. 21, 58

  Research output: Contribution to journal › Journal article › Research › peer-review
• 2024

  Towards identification of new genetic determinants for post-weaning diarrhea in piglets

  Ibragimov, E., Eriksen, E. Ø., Nielsen, J. P., Jørgensen, C. B., Fredholm, M. & Karlskov-Mortensen, P., 2024, In: Animal Genetics. 55, 3, p. 299-492

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

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  2 Citations (Scopus)

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• 2023

  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, K., Goecke, N. B., Blirup-Plum, S. A., Nielsen, J. P., Olsen, J. E., Jensen, H. E., Pankoke, K., Larsen, L. E., Liu, G. & Pedersen, K. S., 2023, In: Porcine Health Management. 9, 33.

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  9 Citations (Scopus)

  32 Downloads (Pure)

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

  Rydal, M. P., Jørgensen, C. B., Gambino, M., Poulsen, L. L. & Nielsen, J. P., 2023, In: Veterinary Microbiology. 282, 109771.

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

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  4 Citations (Scopus)

  26 Downloads (Pure)

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

  Tolstrup, L. K., Leifsson, P. S., Guardabassi, L., Nielsen, J. P. & Pedersen, K. S., 2023, In: Porcine Health Management. 9, 41.

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

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

  Eriksen, E. Ø., Nielsen, J. P., Agerlin, M. V., Christensen, A. E. & Pedersen, K. S., 2023, In: Preventive Veterinary Medicine. 220, 11 p., 106041.

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

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

  Blirup-Plum, S. A., Jensen, H. E., Nielsen, S. S., Pankoke, K., Hansen, M. S., Pedersen, K. S., Eriksen, E. Ø., Nielsen, J. P., Olsen, J. E., Kudirkiene, E., Larsen, L. E., Goecke, N. B. & Barington, K., 2023, In: Acta Veterinaria Scandinavica. 65, p. 1-18 18 p., 30.

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

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  3 Citations (Scopus)

  24 Downloads (Pure)

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

  Barington, K., Eriksen, E. Ø., Kudirkiene, E., Pankoke, K., Hartmann, K. T., Hansen, M. S., Jensen, H. E., Blirup-Plum, S. A., Jørgensen, B. M., Nielsen, J. P., Olsen, J. E., Goecke, N. B., Larsen, L. E. & Pedersen, K. S., 2023, In: Porcine Health Management. 9, 26.

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

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  3 Citations (Scopus)

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• Post-weaning diarrhea in pigs from a single Danish production herd was not associated with the pre-weaning fecal microbiota composition and diversity

  Rydal, M. P., Gambino, M., Castro-Mejia, J. L., Poulsen, L. L., Jørgensen, C. B. & Nielsen, J. P., 2023, In: Frontiers in Microbiology. 14, 1108197.

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

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  1 Citation (Scopus)

  17 Downloads (Pure)

• SKIN ULCERATIONS IN DANISH NURSERY PIGS

  Barington, K., Pankoke, K., Hartmann, K. T., Hansen, M. S., Jensen, H. E., Blirup-Plum, S. A., Jørgensen, B. M., Nielsen, J. P., Eriksen, E. Ø., Kudirkiene, E., Olsen, J. E. & Pedersen, K. S., 30 Aug 2023.

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

• Umbilical Outpouchings in two Danish herds raising pigs with minimal use of antibiotics – Results from a field trial evaluating the efficacy of autogenous vaccines and iodine application

  Larsen, I., Bækbo, P. & Nielsen, J. P., 2023, In: Preventive Veterinary Medicine. 214, 105905.

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

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  3 Citations (Scopus)

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• 2022

  Efficacy of neomycin dosing regimens for treating enterotoxigenic Escherichia coli-related post-weaning diarrhoea in a Danish nursery pig herd not using medicinal zinc oxide

  Morsing, M. K., Larsen, I., Pedersen, K. S., Weber, N. R. & Nielsen, J. P., 2022, In: Porcine Health Management. 8, 8 p., 46.

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

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  2 Citations (Scopus)

  23 Downloads (Pure)

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

  Eriksen, E. Ø., Pedersen, K. S., Larsen, I. & Nielsen, J. P., 2022, In: Animals. 12, 14, 1737.

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

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  4 Citations (Scopus)

  32 Downloads (Pure)

• Evidensbaserede anbefalinger til forebyggelse af fravænningsdiarré

  Eriksen, E. Ø., Pedersen, K. S., Larsen, I. & Nielsen, J. P., Apr 2022, Københavns Universitet. 28 p.

  Research output: Book/Report › Report

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• Kunstlys giver søer og pattegrise D-vitaminer

  Jakobsen, J., Petersen, P. M., Hansen, H. O., Jensen, H. & Nielsen, J. P., 2022, In: Magasinet Gris. 2022, maj, p. 44-45 2 p.

  Research output: Contribution to journal › Journal article › Communication

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• Pilot study on CHCF1 genotype in a pig challenge model for enterotoxigenic Escherichia coli F4ab/ac associated post-weaning diarrhea

  Rydal, M. P., Gambino, M., Jørgensen, C. B., Poulsen, L. L., Brøndsted, L. & Nielsen, J. P., 2022, In: BMC Veterinary Research. 18, 382.

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

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  6 Citations (Scopus)

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

  Eriksen, E. Ø., Nielsen, J. P., Kudirkiene, E., Olsen, J. E., Goecke, N. B., Larsen, L., Liu, G., Agerlin, M. V., Christensen, A. E. & Pedersen, K. S., 2022.

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

• Reduction in Diarrhoea and Modulation of Intestinal Gene Expression in Pigs Allocated a Low Protein Diet without Medicinal Zinc Oxide Post-Weaning

  Lynegaard, J. C., Kjeldsen, N. J., Hansen, C. F., Williams, A. R., Nielsen, J. P. & Amdi, C., 2022, In: Animals. 12, 8, 989.

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

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  5 Citations (Scopus)

  27 Downloads (Pure)

• Vitamin D Levels in Sows from Five Danish Outdoor Herds

  Jakobsen, S. S., Jakobsen, J. & Nielsen, J. P., 2022, In: Animals. 12, 3, 299.

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

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  4 Citations (Scopus)

  17 Downloads (Pure)
• 2021

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

  Rydal, M. P., Bhattarai, S. & Nielsen, J. P., 2021, In: Animals. 11, 10, 2848.

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

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  4 Citations (Scopus)

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

  Larsen, C., Lynegaard, J. C., Pedersen, A., Kjeldsen, N. J., Hansen, C. F., Nielsen, J. P. & Amdi, C., 2021, In: Animal. 15, 4, 100188.

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

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  4 Citations (Scopus)

  51 Downloads (Pure)

• 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, J. M., Weber, N. R., Nielsen, J. P., Denwood, M., Haugegaard, S. & Pedersen, A. Ø., 2021, In: Porcine Health Management. 7, 19.

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

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  7 Citations (Scopus)

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• 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, J. P. & Amdi, C., 2021, In: Animals. 11, 3, p. 1-13 13 p., 678.

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

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  7 Citations (Scopus)

  36 Downloads (Pure)

• Feeding behavior in nursery pigs affected with gastric ulcers

  Peralvo-Vidal, J. M., Weber, N. R., Nielsen, J. P., Bache, J. K., Haugegaard, S. & Pedersen, A. Ø., 2021, In: Livestock Science. 254, 104745.

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

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  1 Citation (Scopus)

  27 Downloads (Pure)

• Late gestation hemoglobin concentrations in sows: Predictor for stillborn piglets

  Noblett, E., Ferriera, J. B., Bhattarai, S., Nielsen, J. P. & Almond, G., 2021, In: Journal of Swine Health and Production. 29, 4, p. 200-203

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

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  3 Citations (Scopus)

  17 Downloads (Pure)

• Low protein diets without medicinal zinc oxide for weaned pigs reduced diarrhoea treatments and average daily gain

  Lynegaard, J. C., Kjeldsen, N. J., Bache, J. K., Weber, N. R., Hansen, C. F., Nielsen, J. P. & Amdi, C., 2021, In: Animal. 15, 1, 100075.

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

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  28 Citations (Scopus)

  50 Downloads (Pure)

• Performance and risk factors associated with first antibiotic treatment in two herds, raising pigs without antibiotics

  Lynegaard, J. C., Larsen, I., Hansen, C. F., Nielsen, J. P. & Amdi, C., 2021, In: Porcine Health Management. 7, 1, 18.

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

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  7 Citations (Scopus)

  24 Downloads (Pure)

• 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., Agerlin, M. V., Weber, N. R., Nødtvedt, A., Nielsen, J. P., Hartmann, K. T., Skade, L., Larsen, L. E., Pankoke, K., Olsen, J. E., Jensen, H. E. & Pedersen, K. S., 2021, In: Porcine Health Management. 7, 54.

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

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

  Eriksen, E. Ø., Kudirkiene, E., Nielsen, J. P., Olsen, J. E. & Pedersen, K. S., 2021.

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

• Risk factors for gastric ulceration in nursery pigs

  Peralvo-Vidal, J. M., Weber, N. R., Nielsen, J. P., Bache, J. K., Haugegaard, S. & Pedersen, A. Ø., 2021, In: Preventive Veterinary Medicine. 189, 105298.

  Research output: Contribution to journal › Journal article › Research › peer-review
  12 Citations (Scopus)

• 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, K. S., Nielsen, J. P. & Olsen, J. E., 2021, In: Antibiotics. 10, 4, 465.

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

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  4 Citations (Scopus)

  33 Downloads (Pure)
• 2020

  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, J. P., Valheim, M. & Kielland, C., 2020, In: Acta Veterinaria Scandinavica. 62, 1, 13 p., 35.

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

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  9 Citations (Scopus)

  58 Downloads (Pure)

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

  Castevens, K., Ferreira, J. B., Gillespie, T., Olsen, C., Nielsen, J. P. & 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

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  6 Citations (Scopus)

  24 Downloads (Pure)

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

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

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

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  9 Citations (Scopus)

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• Infection Dynamics of Swine Influenza Virus in a Danish Pig Herd Reveals Recurrent Infections with Different Variants of the H1N2 Swine Influenza A Virus Subtype

  Bhatta, T., Ryt-hansen, P., Nielsen, J., Larsen, L., Larsen, I., Chamings, A., Goecke, N. & Alexandersen, S., 2020, In: Viruses. 12, 9, 18 p., 1013.

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

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  8 Citations (Scopus)

  68 Downloads (Pure)

• Post-weaning diarrhea in herds not using medicinal zinc

  Eriksen, E. Ø., Nielsen, J. P. & Pedersen, K. S., 29 Jan 2020.

  Research output: Contribution to conference › Conference abstract for conference › Research
• 2019

  Association between sow and piglet blood hemoglobin concentrations and stillbirth risk

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

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

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  14 Citations (Scopus)

  92 Downloads (Pure)

• Effect of tetracycline treatment regimens on antibiotic resistance gene selection over time in nursery pigs

  Græsbøll, K., Larsen, I., Clasen, J., Birkegård, A. C., Nielsen, J. P., Christiansen, L. E., Olsen, J. E., Angen, Ø. & Folkesson, A., 2019, In: BMC Microbiology. 19, 1, 10 p., 269.

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

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  17 Citations (Scopus)

  70 Downloads (Pure)

• Hematologic reference intervals of Danish sows at mid-gestation

  Bhattarai, S., Framstad, T. & Nielsen, J. P., 2019, In: Acta Veterinaria Scandinavica. 61, 1, 5 p., 16.

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

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  15 Citations (Scopus)

  133 Downloads (Pure)

• In vitro synergy of sertraline and tetracycline cannot be reproduced in pigs orally challenged with a tetracycline resistant Escherichia coli

  Kromann, S., Hvidtfeldt, A., Boye, M., Sørensen, D. B., Jørgensen, S., Nielsen, J. P. & Olsen, R. H., 2019, In: BMC Microbiology. 19, 1, 12 p., 12.

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

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  3 Citations (Scopus)

  139 Downloads (Pure)

• Iron treatment of pregnant sows in a Danish herd without iron deficiency anemia did not improve sow and piglet hematology or stillbirth rate

  Bhattarai, S., Framstad, T. & Nielsen, J. P., 2019, In: Acta Veterinaria Scandinavica. 61, 1, 9 p., 60.

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

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  15 Citations (Scopus)

  130 Downloads (Pure)

• The Effect of Straw, Rope, and Bite-Rite Treatment in Weaner Pens with a Tail Biting Outbreak

  Lahrmann, H. P., Faustrup, J. F., Hansen, C. F., D'Eath, R. B., Nielsen, J. P. & Forkman, B., 2019, In: Animals. 9, 6, 365.

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

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  12 Citations (Scopus)

  57 Downloads (Pure)

• Vitamin D enhanced pork from pigs exposed to artificial UVB light in indoor facilities

  Barnkob, L. L., Petersen, P. M., Nielsen, J. P. & Jakobsen, J., 2019, In: European Food Research and Technology. 245, 2, p. 411-418 8 p.

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

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  28 Citations (Scopus)

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• 2018

  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, J. P., Haugegaard, J., Leth, S. C., Larsen, L. E., Kristensen, C. S., Pedersen, K. S., Stege, H., Hjulsager, C. K. & Houe, H., 1 Feb 2018, In: Porcine Health Management. 4, 10 p., 2.

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

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  190 Downloads (Pure)

• 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, J. P. & Forkman, B., 2018, In: Livestock Science. 214, p. 272-277 6 p.

  Research output: Contribution to journal › Journal article › Research › peer-review
  40 Citations (Scopus)

• Stillbirths in relation to sow hematological parameters at farrowing: A cohort study

  Bhattarai, S., Framstad, T. & Nielsen, J. P., 2018, In: Journal of Swine Health and Production. 26, 4, p. 215-222 8 p.

  Research output: Contribution to journal › Review › Research › peer-review
  15 Citations (Scopus)
• 2017

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

  Weber, N. R., Nielsen, J. P. & Pedersen, K. S., 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

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• 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, J. P. & Pedersen, K. S., 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

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• 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, K. S., Hansen, C. F., Denwood, M., Hjulsager, C. K. & Nielsen, J. P., 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

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  7 Citations (Scopus)

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

  Nielsen, G. B., Nielsen, J. P., Haugegaard, J. & Houe, H., 2017. 1 p.

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

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