Ida Thøfner

Ida Thøfner

Associate Professor

Member of:

    ORCID: 0000-0003-2461-7024

    Publication year:
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    1 - 50 out of 79Page size: 50
    1. 2024
    2. Published

      A walk through the broiler breeder life: how do footpad dermatitis and gait scores develop from rearing to slaughter?

      Kittelsen, K. E., Vasdal, G., Thoefner, Ida & Tahamtani, F., 2024, In: Avian Pathology. 53, 3, p. 164-173 10 p.

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

    3. 2023
    4. Published

      ANTIMICROBIAL USE AT HERD LEVEL IN THE DANISH BROILER SECTOR

      Lund, Vibe Pedersen, Thoefner, Ida , Nielsen, Liza Rosenbaum & Christensen, Jens Peter, 4 Sep 2023.

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

    5. Published

      ANTIMICROBIAL USE AT HERD LEVEL IN THE DANISH BROILER SECTOR

      Lund, Vibe Pedersen, Thoefner, Ida , Nielsen, Liza Rosenbaum & Christensen, Jens Peter, 4 Sep 2023.

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

    6. Published

      CAUSES OF MORTALITY IN DANISH LAYING HENS IN NON-CAGE HOUSING SYSTEMS

      Lund, Vibe Pedersen, Thoefner, Ida , Scharling, F. S., Nielsen, Liza Rosenbaum & Christensen, Jens Peter, 4 Sep 2023.

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

    7. Published

      Brug af mobilt røntgenapparat til at bestemme forekomsten af brystbensfrakturer hos produktionshøner

      Knorr Jensen, S., Christensen, Jens Peter & Thoefner, Ida , 2023, In: Dansk Erhvervsfjerkrae. 52, 1, p. 38-40 3 p.

      Research output: Contribution to journal › Journal article › Research

    8. Published

      Causes of mortality in Danish laying hens in non-cage housing systems

      Lund, Vibe Pedersen, Thoefner, Ida , Scharling, F. S., Nielsen, Liza Rosenbaum & Christensen, Jens Peter, 2023, XXIInd Congress of the World Veterinary Poultry Association: Book of Abstracts. Verona, Italy: World Veterinary Poultry Association, p. 253-253 1 p. s12-07

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

    9. Published

      Danish egg producers’ knowledge, practices, attitudes and perceptions of laying hen mortality

      Lund, Vibe Pedersen, Thoefner, Ida , Nielsen, Liza Rosenbaum & Christensen, Jens Peter, 2023.

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

    10. Published

      Dramatic increase in slaughter condemnations due to Escherichia coli ST23 and ST101 within the Danish broiler production

      Kromann, Sofie, Baig, S., Olsen, Rikke Heidemann, Edslev, S. M., Thoefner, Ida , Bojesen, Anders Miki, Jensen, Henrik Elvang & Stegger, M., 2023, In: Veterinary Microbiology. 280, 109696.

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

    11. Published

      Histomorphological characterization of keel bone maturation and keel bone fractures in laying hens

      Gretarsson, P., Thoefner, Ida , Moe, R. O., Kittelsen, K. K. & Toftaker, I., 2023, XXIInd Congress of the World Veterinary Poultry Association: Book of Abstracts. Verona, Italy: World Veterinary Poultry Association, p. 229-229 1 p. S9-O3

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

    12. Published

      Hvad dør danske konsumægshøner af?

      Lund, Vibe Pedersen, Thoefner, Ida , Scharling, F. S., Nielsen, Liza Rosenbaum & Christensen, Jens Peter, 2023.

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

    13. Published

      Keel bone fractures in broiler breeders: is palpation a reliale diagnostic method?

      Kittelsen, K. K., Toftaker, I., Tahamtani, F., Moe, R. O., Thoefner, Ida & Vasdal, G., 2023, XXIInd Congress of the World Veterinary Poultry Association: Book of Abstracts. Verona, Italy: World Veterinary Poultry Association, p. 227-227 1 p. S9-O1

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

    14. Published

      Keel bone fractures in broiler breeders: is palpation a reliable diagnostic method?

      Kittelsen, K. E., Toftaker, I., Tahamtani, F., Moe, R. O., Thoefner, Ida & Vasdal, G., 2023, In: Avian Pathology. 1, p. 78-83 15 p.

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

    15. Published

      The egg-laying process might be a contributing factor for the development of keel bone fractures in laying hens

      Thoefner, Ida , Shih, C., Villa, Chiara & Christensen, Jens Peter, 2023, XXIInd Congress of the World Veterinary Poultry Association: Book of Abstracts. Verona, Italy: World Veterinary Poultry Association, p. 228-228 1 p. S9-O2

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

    16. Published

      Welfare-related causes of mortality identified in a longitudinal study in Danish commercial layers

      Lund, Vibe Pedersen, Thoefner, Ida , Scharling, F. S., Nielsen, Liza Rosenbaum & Christensen, Jens Peter, 2023, p. 82.

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

    17. 2022
    18. Published

      Quantification of antimicrobial usage in Danish poultry production in 2015-2019

      Lund, Vibe Pedersen, Thoefner, Ida , Nielsen, Liza Rosenbaum & Christensen, Jens Peter, 5 May 2022.

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

    19. Published

      Anvendelse af probiotika før klækning

      Poulsen, Louise Ladefoged, Sandvang, D., Dencker, M., Juul, J. & Thoefner, Ida , 2022, In: Dansk Erhvervsfjerkrae. 51, 3, p. 62-65 4 p.

      Research output: Contribution to journal › Journal article › Research

    20. Published

      Assessment of automated assays for serum amyloid A, haptoglobin (PIT54) and basic biochemistry in broiler breeders experimentally infected with Escherichia coli

      Kromann, Sofie, Olsen, Rikke Heidemann, Bojesen, Anders Miki, Jensen, Henrik Elvang & Thoefner, Ida , 2022, In: Veterinary Research. 53, 1, 7 p., 25.

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

    21. Published

      Longitudinal study on background lesions in broiler breeder flocks and their progeny, and genomic characterisation of Escherichia coli

      Kromann, Sofie, Baig, S., Stegger, M., Olsen, Rikke Heidemann, Bojesen, Anders Miki, Jensen, Henrik Elvang & Thoefner, Ida , 2022, In: Veterinary Research. 53, 52.

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

    22. Published

      Nyt fra Dansk Veterinær Konsortium: Antibiotikaforbrug og dødelighed i fjerkræbesætninger – forbedret sundhedsstyring med registerdata og patologi?

      Lund, Vibe Pedersen, Thoefner, Ida , Nielsen, Liza Rosenbaum & Christensen, Jens Peter, 2022, In: Dansk Veterinærtidsskrift. 2022, 11

      Research output: Contribution to journal › Journal article › Research

    23. Published

      Research Note: The effect of a probiotic E. faecium 669 mitigating Salmonella Enteritidis colonization of broiler chickens by improved gut integrity

      Olsen, M. S. R., Thoefner, Ida , Sandvang, D. & Poulsen, Louise Ladefoged, 2022, In: Poultry Science. 101, 10, 102029.

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

    24. Published

      Risk factor identification of keel bone fractures in Danish laying hens

      Thoefner, Ida , Hougen, H. P., Villa, Chiara, Dahl, J. & Christensen, Jens Peter, 2022, Book of abstracts 2021 : The 26th World’s Poultry Congress . Tixier-Boichard, M. & Duclos, M. (eds.). 1 ed. France: French Branch of the World’s Poultry Science Association, Vol. 1. p. 552-552 1441

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

    25. 2021
    26. Published

      Factors associated with herd level antimicrobial use in Danish broilers

      Lund, Vibe Pedersen, Thoefner, Ida , Nielsen, Liza Rosenbaum & Christensen, Jens Peter, 25 Mar 2021.

      Research output: Contribution to conference › Poster › Research

    27. Published

      Brystbensfrakturer hos konsumægshøns –status på de sidste års danske undersøgelser

      Christensen, Jens Peter, Hougen, H. P., Villa, Chiara, Dahl, J., Sejonaite, L. & Thoefner, Ida , Feb 2021, In: Dansk Erhvervsfjerkrae. 50, 2, p. 60-65 6 p.

      Research output: Contribution to journal › Journal article › Research

    28. Published

      Bacterial diseases in poultry

      Thoefner, Ida & Christensen, Jens Peter, 2021, Advancements and Technologies in Pig and Poultry Bacterial Disease Control. Academic Press, p. 199-227

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

    29. Published

      Development of an aerogenous Escherichia coli infection model in adult broiler breeders

      Kromann, Sofie, Olsen, Rikke Heidemann, Bojesen, Anders Miki, Jensen, Henrik Elvang & Thoefner, Ida , 2021, In: Scientific Reports. 11, 15 p., 19556.

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

    30. Published

      Keel bone fractures in Danish laying hens: Prevalence and risk factors

      Thoefner, Ida , Dahl, J. & Christensen, Jens Peter, 2021, In: PLoS ONE. 16, 8, 23 p., e0256105.

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

    31. Published

      Protective potential of an autogenous vaccine in an aerogenous model of escherichia coli infection in broiler breeders

      Kromann, Sofie, Olsen, Rikke Heidemann, Bojesen, Anders Miki, Jensen, Henrik Elvang & Thoefner, Ida , 2021, In: Vaccines. 9, 11, 1233.

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

    32. Published

      Recovery of probiotic bacteria from the intestinal tract of broilers after noninvasive pre-hatch application

      Thoefner, Ida , Sandvang, D., Aagaard, K. & Poulsen, Louise Ladefoged, 2021, In: Beneficial Microbes. 12, 5, p. 467 - 477 12 p.

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

    33. 2020
    34. Published

      Pathological characterization of keel bone fractures in laying hens does not support external trauma as the underlying cause

      Thoefner, Ida , Hougen, H. P., Villa, Chiara, Lynnerup, Niels & Christensen, Jens Peter, 9 Mar 2020, In: PLoS ONE. 15, 3, 15 p., e0229735.

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

    35. Published

      Comparison and assessment of necropsy lesions in end-of-lay laying hens from different housing systems in Denmark

      Wang, C., Pors, S. E., Christensen, Jens Peter, Bojesen, Anders Miki & Thoefner, Ida , 2020, In: Poultry Science. 99, 1, p. 119-128

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

    36. Published

      Hydrostatic filtration enables large-scale production of outer membrane vesicles that effectively protect chickens against gallibacterium anatis

      Antenucci, F., Arak, H., Gao, J., Allahgadry, T., Thoefner, Ida & Bojesen, Anders Miki, 2020, In: Vaccines. 8, 1, 40.

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

    37. Published

      Veterinærstuderendes oplevelse af besætningsbesøg som instrument til læring omkring dyrlægers roller i fjerkræproduktionen

      Thoefner, Ida , 2020, Improving University Science Teaching and Learning: Pedagogical Projects 2020. Christiansen, F. V. & Arias, A. A. (eds.). Copenhagen: University of Copenhagen, Vol. 15. p. 31-44 (Improving University Science Teaching and Learning - Pedagogical Projects, Vol. 15).

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

    38. Published

      Whole genome sequence comparison of avian pathogenic Escherichia coli from acute and chronic salpingitis of egg laying hens

      Poulsen, Louise Ladefoged, Kudirkiene, E., Jørgensen, S. L., Djordjevic, S. P., Cummins, M. L., Christensen, Jens Peter, Christensen, Henrik, Bisgaard, M. & Thoefner, Ida , 2020, In: BMC Veterinary Research. 16, 1, 9 p., 148.

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

    39. 2019
    40. Published

      E. coli-infektioner hos konsumægshøner: Forekomst, betydning og kontrol

      Thoefner, Ida , Wang, C., Pors, S. E. & Christensen, Jens Peter, Feb 2019, In: Dansk Erhvervsfjerkrae. 48, 2, p. 16-20

      Research output: Contribution to journal › Journal article › Research

    41. Published

      Correlation between footpad lesions and systemic bacterial infections in broiler breeders

      Thoefner, Ida , Poulsen, Louise Ladefoged, Bisgaard, M., Christensen, Henrik, Olsen, Rikke Heidemann & Christensen, Jens Peter, 2019, In: Veterinary Research. 50, 1, 5 p., 38.

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

    42. Published

      Infectious potential of human derived uropathogenic Escherichia coli UTI86 in the reproductive tract of laying hens

      Mortensen, S., Johansen, A. E., Thoefner, Ida , Christensen, Jens Peter, Pors, S. E., Fresno, A. H., Møller-Jensen, J. & Olsen, John Elmerdahl, 2019, In: Veterinary Microbiology. 239, 108445.

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

    43. Published

      Interaction differences of the avian host-specific salmonella enterica serovar gallinarum, the host-generalist S. Typhimurium, and the cattle host-adapted S. Dublin with chicken primary macrophage

      Huang, K., Herrero-Fresno, A., Thoefner, Ida , Skov, Søren & Olsen, John Elmerdahl, 2019, In: Infection and Immunity. 87, 12, e00552-19.

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

    44. Published

      Longitudinal Study on Causes of Mortality in Danish Broiler Breeders

      Thoefner, Ida , Poulsen, Louise Ladefoged, Bisgaard, M., Christensen, Henrik, Olsen, Rikke Heidemann & Christensen, Jens Peter, 2019, In: Avian Diseases. 63, 3, 400-410.

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

    45. 2018
    46. Published

      Vaccination with outer membrane vesicles and the fimbrial protein FlfA offers improved protection against lesions following challenge with Gallibacterium anatis

      Persson, G., Pors, S. E., Thoefner, Ida & Bojesen, Anders Miki, 1 Apr 2018, In: Veterinary Microbiology. 217, p. 104-111 8 p.

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

    47. Published

      The membrane transporter PotE is required for virulence in avian pathogenic Escherichia coli (APEC)

      Guerra, Priscila Regina, Herrero-Fresno, A., Pors, S. E., Ahmed, S., Wang, D., Thoefner, Ida , Antenucci, F. & Olsen, John Elmerdahl, Mar 2018, In: Veterinary Microbiology. 216, p. 38-44 7 p.

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

    48. Published

      Effect of live attenuated Escherichia coli vaccination on experimentally induced salpingitis in layers

      Thoefner, Ida & Christensen, Jens Peter, 2018, MedVetPathogens 2018: 5th Prato Conference on Animal Bacterial Pathogens. Italy, p. 33 1 p.

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

    49. Published

      Estimates on the significance of chronic E.coli infections of the reproductive tract in laying hens

      Thoefner, Ida & Christensen, Jens Peter, 2018, The XVth European Poultry Conference: Conference information and proceedings. Croatian branch of the World's Poultry Science Association, p. 181 1 p.

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

    50. Published

      Experimental chronic E.coli oviduct infections in egg laying hens

      Thoefner, Ida & Christensen, Jens Peter, 2018, p. 45. 1 p.

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

    51. Published

      Investigation of the effect of live attenuated Escherichia coli vaccination on experimentally induced salpingitis in layers

      Thoefner, Ida & Christensen, Jens Peter, 2018, The XVth European Poultry Conference: Conference information and proceedings. Croatian branch of the World's Poultry Science Association, p. 192 1 p.

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

    52. 2017
    53. Published

      Impact of egg disinfection of hatching eggs on the eggshell microbiome and bacterial load

      Olsen, Rikke Heidemann, Kudirkiene, E., Thoefner, Ida , Pors, S., Karlskov-Mortensen, Peter, Li, L., Papasolomontos, S., Angastiniotou, C. & Christensen, Jens Peter, Nov 2017, In: Poultry Science. 96, 11, p. 3901-3911

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

    54. Published

      Evaluation of the efficacy of an autogenous Escherichia coli vaccine in broiler breeders

      Li, L., Thoefner, Ida , Christensen, Jens Peter, Ronco, T., Pedersen, K. & Olsen, Rikke Heidemann, Jun 2017, In: Avian pathology : journal of the W.V.P.A. 46, 3, p. 300-308 9 p.

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

    55. Published

      Enterococcus cecorum: undersøgelser af smittemåde og sygdomsudvikling

      Christensen, Jens Peter, Emdrup, J. H. & Thoefner, Ida , May 2017, In: Dansk Erhvervsfjerkrae. 46, 5, p. 46-49 3 p.

      Research output: Contribution to journal › Journal article › Research

    56. Published

      Differences in susceptibility to experimental Enterococcus cecorum infections in broilers and adult broiler breeders

      Thoefner, Ida , Emdrup, J. H. & Christensen, Jens Peter, 2017.

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

    57. Published

      Longitudinal study of transmission of Escherichia coli from broiler breeders to broilers

      Poulsen, Louise Ladefoged, Thoefner, Ida , Bisgaard, M., Christensen, Jens Peter, Olsen, Rikke Heidemann & Christensen, Henrik, 2017, In: Veterinary Microbiology. 207, p. 13-18

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

    58. Published

      Staphylococcus agnetis, a potential pathogen in broiler breeders

      Poulsen, Louise Ladefoged, Thoefner, Ida , Bisgaard, M., Olsen, Rikke Heidemann, Christensen, Jens Peter & Christensen, Henrik, 2017, In: Veterinary Microbiology. 212, p. 1-6 6 p.

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

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