Ida Thøfner
Associate Professor
Veterinary Clinical Microbiology
Stigbøjlen 4, 1870 Frederiksberg C
Member of:
- 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. 119-128Research output: Contribution to journal › Journal article › Research › peer-review
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Subclinical disease in Danish layers - prevalence and aetiology
Wang, C., Pors, S. E., Christensen, Jens Peter & Thoefner, Ida , 2017.Research output: Contribution to conference › Conference abstract for conference › Research › peer-review
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Prevalence and aetiology of subclinical chronic infections in laying hens
Wang, C., Pors, S. E., Christensen, Jens Peter & Thoefner, Ida , Nov 2016.Research output: Contribution to conference › Conference abstract for conference › Research
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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
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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
- Published
Beskytter E. coli autovacciner mod æggeleder- og bughindebetændelse under eksperimentelle forhold?
Thoefner, Ida , Ronco, T., Christensen, Jens Peter, Pedersen, K. & Olsen, Rikke Heidemann, 2016, In: Dansk Erhvervsfjerkrae. 45, 11, p. 42-45Research output: Contribution to journal › Journal article › Research
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Antihistomonal effect of artemisinin and Artemisia annua extracts in experimentally infected chickens and turkeys
Thoefner, Ida , Liebhart, D., Hess, M., Schou, T. W., Hess, C., Ivarsen, E., Fretté, X. C., Christensen, L. P., Grevsen, K., Engberg, R. M. & Christensen, Jens Peter, 6 Jul 2012. 1 p.Research output: Contribution to conference › Conference abstract for conference › Research › peer-review
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Quantitative assessment of bile ducts in turkeys treated with artemisinin: A model for liver toxicity?
Thoefner, Ida , Larsen, J. O., Nielsen, O. L., Liebhart, D., Hess, M., Schou, T. W., Hess, C., Ivarsen, E., Fretté, X. C., Christensen, L. P., Grevsen, K., Engberg, R. M. & Christensen, Jens Peter, 2013. 1 p.Research output: Contribution to conference › Poster › Research › peer-review
- Published
Effects of artemisinin and Artemisia annua extracts on xenic bacteria isolated from clonal cultures of Histomonas meleagridis.
Thoefner, Ida , Hess, C., Liebhart, D., Hess, M., Schou, T. W., Ivarsen, E., Fretté, X. C., Christensen, L. P., Grevsen, K., Engberg, R. M. & Christensen, Jens Peter, 2012.Research output: Contribution to conference › Poster › Research
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Effects of Sweet wormwood (Artemisia annua) on clinical histomonosis and coccidiosis using experimental poultry infections
Thoefner, Ida , 2013, Department of Veterinary Disease Biology, Faculty of Health and Medical Sciences, University of Copenhagen. 129 p.Research output: Book/Report › Ph.D. thesis › Research
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Protective effects of artemisinin and Artemisia annua extracts on clinical caecal coccidiosis in broiler chickens
Thoefner, Ida , Pors, S. E., Schou, T. W., Thebo, P., Nielsen, O. L., Ivarsen, E., Fretté, X., Christensen, L. P., Grevsen, K., Engberg, R. M. & Christensen, Jens Peter, 2013, 18th World Veterinary Poultry Association Congress: Proceedings . p. 721-722 2 p.Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research › peer-review
- Published
Infections with Gram positive cocci in broiler breeders: significance and prevalence
Thoefner, Ida , Poulsen, Louise Ladefoged, Olsen, Rikke Heidemann, Christensen, Henrik, Bisgaard, M. & Christensen, Jens Peter, Jun 2016, 16th International Conference on Production Diseases in Farm Animals: Book of abstracts. Wageningen, Netherlands: Wageningen Academic Publishers, p. 141-141 1 p.Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review
- Published
Antihistomonal effects of artemisinin and Artemisia annua extracts in vitro could not be confirmed by in vivo experiments in turkeys and chickens
Thoefner, Ida , Liebhart, D., Hess, M., Schou, T. W., Hess, C., Ivarsen, E., Fretté, X., Christensen, L. P., Grevsen, K., Engberg, R. G. & Christensen, Jens Peter, 2012, In: Avian Pathology. 41, 5, p. 487-496 10 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Screening of Artemisia annua compounds against Histomonas meleagridis
Thoefner, Ida , Liebhart, D., Hess, M., Schou, T. W. & Christensen, Jens Peter, 2011.Research output: Contribution to conference › Conference abstract for conference › Research › peer-review
- Published
Systemic reactive amyloidosis - an age related problem of importance in broiler breeders
Thoefner, Ida , Poulsen, Louise Ladefoged, Bisgaard, M., Christensen, Henrik, Olsen, Rikke Heidemann & Christensen, Jens Peter, Sep 2015.Research output: Contribution to conference › Poster › Research › peer-review
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Toxicity of artemisinin in one-week-old turkey poults
Thoefner, Ida , Larsen, J. O., Nielsen, O. L., Liebhart, D., Hess, M., Schou, T. W., Hess, C., Ivarsen, E., Fretté, X. C., Christensen, L. P., Grevsen, K., Engberg, R. M. & Christensen, Jens Peter, 2013, Continuous improvement of Turkey produktion and health: never-ending story: Proceedings of the 7th "Hafez" International Symposium on Turkey Production. Hafez, H. M. (ed.). Mensch und Buch Verlag, p. 218-225 8 p.Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research
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Hepatic toxicity of artemisinin in turkeys
Thoefner, Ida , Larsen, J. O., Nielsen, O. L., Liebhart, D., Hess, M., Schou, T. W., Hess, C., Ivarsen, E., Fretté, X. C., Christensen, L. P., Mogensen, J., Nielsen, K. F., Grevsen, K., Engberg, R. M. & Christensen, Jens Peter, 2013, 18th World Veterinary Poultry Association Congress: Proceedings. p. 723 1 p.Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research › peer-review
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Longitudinal study of mortality observed in four broiler breeder flocks
Thoefner, Ida , Poulsen, Louise Ladefoged, Bisgaard, M., Christensen, Henrik, Olsen, Rikke Heidemann & Christensen, Jens Peter, Sep 2015, 19th World Veterinary Poultry Association Congress. Cape Town, p. 148-148 1 p.Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research › peer-review
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Bacterial diseases in poultry
Thoefner, Ida & Christensen, Jens Peter, 2021, Advancements and Technologies in Pig and Poultry Bacterial Disease Control. Academic Press, p. 199-227Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research › peer-review
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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
- Published
Antihistomonal effect of artemisinin and Artemisia annua extracts in experimentally infected turkeys
Thoefner, Ida , Liebhart, D., Hess, M., Schou, T. W., Hess, C., Ivarsen, E., Fretté, X. C., Christensen, L. P., Grevsen, K., Engberg, R. M. & Christensen, Jens Peter, 2012, 9th International Symposium on Turkey Diseases. Hafez, H. M. (ed.). Berlin: Mensch und Buch Verlag, p. 222-229 8 p.Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research
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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
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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. 16-20Research output: Contribution to journal › Journal article › Research
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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 1441Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research › peer-review
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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
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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
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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-O2Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research › peer-review
- 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
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Investigations of the pathogenesis of Staphylococcus aureus and Enterococcus faecalis in an experimental footpad infection model in broiler breeders
Thoefner, Ida , Olsen, Rikke Heidemann, Poulsen, Louise Ladefoged, Christensen, Henrik, Bisgaard, M. & Christensen, Jens Peter, Oct 2016, Vetpath 2016 conference abstracts. Prato, p. 5-5 1 p.Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research › peer-review
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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
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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
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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
- 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
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Et nyt dyrevelfærdsprodukt: Æg uden kyllingedrab
Sandøe, Peter & Thoefner, Ida , 2019, In: Dansk Erhvervsfjerkrae. 48, 3, p. 28-29 2 p.Research output: Contribution to journal › Journal article › Communication
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Æg uden drab
Sandøe, Peter & Thoefner, Ida , 1 Mar 2019, In: Weekendavisen - Ideer. p. 13 1 p.Research output: Contribution to journal › Comment/debate › Communication
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Æg uden kyllingedrab
Sandøe, Peter & Thoefner, Ida , 2019, In: Æggehviden. 3, p. 22-23 2 p.Research output: Contribution to journal › Journal article › Communication
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Draft Genome Sequences of Two Avian Pathogenic Escherichia coli Strains of Clinical Importance, E44 and E51
Ronco, T., Stegger, M., Andersen, P. S., Pedersen, K., Li, L., Thoefner, Ida & Olsen, Rikke Heidemann, 2016, In: Genome Announcements. 4, 4, 2 p., e00768-16.Research output: Contribution to journal › Journal article › Research › peer-review
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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
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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. 13-18Research output: Contribution to journal › Journal article › Research › peer-review
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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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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
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Outer membrane vesicles of Gallibacterium anatis induce protective immunity in egg-laying hens
Pors, S. E., Pedersen, I. J., Skjerning, R. B., Thoefner, Ida , Persson, G. & Bojesen, Anders Miki, 15 Nov 2016, In: Veterinary Microbiology. 195, p. 123-127 5 p.Research output: Contribution to journal › Journal article › Research › peer-review
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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
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Experimental induced avian E. coli salpingitis: significant impact of strain and host factors on the clinical and pathological outcome
Olsen, Rikke Heidemann, Thoefner, Ida , Pors, S. E., Pires dos Santos, T. M. S. & Christensen, Jens Peter, 2016, In: Veterinary Microbiology. 188, p. 59-66 8 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Draft genome sequences of three Escherichia coli strains with different In Vivo pathogenicities in an avian (Ascending) infection model of the oviduct
Olsen, Rikke Heidemann, Thoefner, Ida , Pors, S. E., Christensen, Henrik, Bisgaard, M. & Christensen, Jens Peter, 2015, In: Genome Announcements. 3, 3, 2 p., e00399-15 .Research output: Contribution to journal › Journal article › Research › peer-review
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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. 3901-3911Research output: Contribution to journal › Journal article › Research › peer-review
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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
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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
- Published
ID: 19802078
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1844
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Hepatic toxicity of artemisinin in turkeys
Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research › peer-review
Published -
1672
downloads
Protective effects of artemisinin and Artemisia annua extracts on clinical caecal coccidiosis in broiler chickens
Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research › peer-review
Published -
1420
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Effects of artemisinin and Artemisia annua extracts on xenic bacteria isolated from clonal cultures of Histomonas meleagridis.
Research output: Contribution to conference › Poster › Research
Published