Jens Frederik Gramstrup Agger

Jens Frederik Gramstrup Agger

Associate Professor emeritus, Teaching Associate Professor

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    Publication year:
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    101 - 135 out of 135Page size: 100
    1. 2002
    2. Published

      Effects of reproductive disorders on the technical efficiency of Danish dairy cattle herds: a stochastic frontier production function approach

      Lawson, L., Bruun, J., Coelli, T., Agger, Jens Frederik Gramstrup & Lund, M., 2002.

      Research output: Contribution to conference › Paper › Research

    3. Published

      Introduction to veterinary epidemiology: chapter 1

      Agger, Jens Frederik Gramstrup, Houe, Hans, Ersbøll, A. K. & Toft, N., 2002, Veterinary epidemiology: from hypothesis to conclusion. Houe, H., Ersbøll, A. K., Toft, N. & Agger, J. F. (eds.). Frederiksberg: Center for Skov, Landskab og Planlægning/Københavns Universitet, p. 9-16 8 p.

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

    4. Published

      Maximum-likelihood estimation of sensitivity and specificity of ELISAs and faecal culture for diagnosis of paratuberculosis

      Nielsen, Søren Saxmose, Grønbæk, C., Agger, Jens Frederik Gramstrup & Houe, Hans, 2002, In: Preventive Veterinary Medicine. 53, 3, p. 191-204 14 p.

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

    5. Published

      Measures of association and effect: chapter 7

      Toft, N., Agger, Jens Frederik Gramstrup & Bruun, J., 2002, Veterinary epidemiology: from hypothesis to conclusion. Houe, H., Ersbøll, A. K., Toft, N. & Agger, J. F. (eds.). Frederiksberg: Center for Skov, Landskab og Planlægning/Københavns Universitet, p. 95-107 13 p.

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

    6. Published

      Measures of disease fequency: chapter 6

      Toft, N., Agger, Jens Frederik Gramstrup, Houe, Hans & Bruun, J., 2002, Veterinary epidemiology: from hypothesis to conclusion. Houe, H., Ersbøll, A. K., Toft, N. & Agger, J. F. (eds.). Frederiksberg: Center for Skov, Landskab og Planlægning/Københavns Universitet, p. 79-93 15 p.

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

    7. Published

      Paratuberculosis in dairy cattle: variation of the antibody response in offspring attributable to the dam

      Nielsen, Søren Saxmose, Gröhn, Y. T., Quaas, R. L. & Agger, Jens Frederik Gramstrup, 2002, In: Journal of Dairy Science. 85, 2, p. 406-412 7 p.

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

    8. Published

      Questionnaires: chapter 12

      Nielsen, A. C., Agger, Jens Frederik Gramstrup & Ersbøll, A. K., 2002, Veterinary epidemiology: from hypothesis to conclusion. Houe, H., Ersbøll, A. K., Toft, N. & Agger, J. F. (eds.). Frederiksberg: Center for Skov, Landskab og Planlægning/Københavns Universitet, p. 179-197 19 p.

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

    9. Published

      Veterinary epidemiology: from hypothesis to conclusion

      Houe, Hans (ed.), Ersbøll, A. K. (ed.), Toft, N. (ed.) & Agger, Jens Frederik Gramstrup (ed.), 2002, Frederiksberg: Center for Skov, Landskab og Planlægning/Københavns Universitet. 250 p.

      Research output: Book/Report › Book › Education

    10. 2001
    11. Published

      Associations between dairy cow somatic cell count and four types of bedding in free stalls

      Kirkegaard, P., Agger, Jens Frederik Gramstrup & Bjerg, Bjarne Schmidt, 2001.

      Research output: Contribution to conference › Paper › Research

    12. Published

      Incidence of clinical mastitis in Danish dairy cattle and screening for non-reporting in a passively collected national surveillance system

      Bartlett, P. C., Agger, Jens Frederik Gramstrup, Houe, Hans & Lawson, L., 2001, In: Preventive Veterinary Medicine. 48, 2, p. 73-83 11 p.

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

    13. Published

      Milk fever and subclinical hypocalcaemia: an evaluation of parameters on incidence risk, diagnosis, risk factors and biological effects as input for a decision support system for disease control

      Houe, Hans, Østergaard, S., Thilsing, T., Jørgensen, R. J., Larsen, T., Sørensen, J. T., Agger, Jens Frederik Gramstrup & Blom, J. Y., 2001, In: Acta Veterinaria Scandinavica (Print Edition). 42, p. 1-29 29 p.

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

    14. Published

      Reported treatment incidence rate profile of main production diseases of dairy farms in Denmark

      Lawson, L., Agger, Jens Frederik Gramstrup, Skjøth, F. & Nielsen, L. A. H., 2001.

      Research output: Contribution to conference › Paper › Research

    15. Published

      Technical inefficiency of milk production and udder-related diseases in Danish dairy cattle herds

      Lawson, L., Agger, Jens Frederik Gramstrup & Lund, M., 2001.

      Research output: Contribution to conference › Paper › Research

    16. 2000
    17. Published

      Associations of Neospora caninum seropositivity with environment and management in Danish dairy herds

      Agger, Jens Frederik Gramstrup, Willadsen, C. M., Lind, P., Mikél Jensen, A. & Björkman, C., 2000. 2 p.

      Research output: Contribution to conference › Paper › Research

    18. Published

      Economic loss and control expenditure frontier curves in milk production

      Lawson, L., Agger, Jens Frederik Gramstrup & Otto, L., 2000. 2 p.

      Research output: Contribution to conference › Paper › Research

    19. Published

      Prevalence of paratuberculosis in Danish dairy herds

      Nielsen, Søren Saxmose & Agger, Jens Frederik Gramstrup, 2000. 1 p.

      Research output: Contribution to conference › Paper › Research

    20. Published

      Three approaches to evaluate three diagnostic tests for paratuberculosis

      Nielsen, Søren Saxmose, Agger, Jens Frederik Gramstrup, Thamsborg, Stig Milan, Houe, Hans & Bitsch, V., 2000. 3 p.

      Research output: Contribution to conference › Paper › Research

    21. 1999
    22. Published

      Cointegration analysis used in a study of dairy-cow mortality

      Nørgaard, N. H., Lind, K. M. & Agger, Jens Frederik Gramstrup, 1999, In: Preventive Veterinary Medicine. 42, p. 99-119 21 p.

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

    23. Published

      Milk fever and subclinical hypocalcaemia: a review of pathogenesis, diagnosis, risk factors and biological effects as input for economical modelling

      Houe, Hans, Jørgensen, R. J., Larsen, T., Østergaard, S., Sørensen, J. T., Agger, Jens Frederik Gramstrup, Thilsing, T. & Blom, J. Y., 1999, Tjele: Research Centre for the Management of Animal Production and Health. 69 p. (CEPROS-report; No. 4).

      Research output: Book/Report › Book › Education

    24. 1997
    25. Published

      Diagnostic studies of abortion in Danish dairy herds

      Agerholm, Jørgen Steen, Willadsen, C. M., Nielsen, T. K., Giese, S. B., Holm, E., Jensen, L. & Agger, Jens Frederik Gramstrup, 1997, In: Transboundary and Emerging Diseases. 44, p. 551-558 8 p.

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

    26. Published

      Evaluation of clinical mastitis and somatic cell count as diagnostic tests for surveillance of udder health in dairy herds

      Agger, Jens Frederik Gramstrup, Bartlett, P. C., Woudstra, I., Willeberg, P., Houe, Hans, Lawson, L. & Enøe, C., 1997, Ikke angivet. AEEMA, p. 31-32, 2 p.

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

    27. Published

      Health as a parameter for assessing dairy herd welfare: advantages and disadvantages

      Alban, L. & Agger, Jens Frederik Gramstrup, 1997. 9 p.

      Research output: Contribution to conference › Paper › Research

    28. Published

      Indicators of incomplete disease surveillance of clinical mastitis on a large national dairy

      Agger, Jens Frederik Gramstrup, Bartlett, P. C., Houe, Hans, Willeberg, P. & Lawson, G. L., 1997. 1 p.

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

    29. Published

      Indicators of incomplete disease surveillance of clinical mastitis on a large national dairy database

      Agger, Jens Frederik Gramstrup, Bartlett, P. C., Houe, Hans, Willeberg, P. & Lawson, L. G., 1997. 6 p.

      Research output: Contribution to conference › Paper › Research

    30. 1996
    31. Published

      A retrospective study on salmonella infection in Danish broiler flocks

      Angen, Ø., Skov, M. N., Chriél, M., Agger, Jens Frederik Gramstrup & Bisgaard, M., 1996, In: Preventive Veterinary Medicine. 26, p. 223-237 15 p.

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

    32. Published

      Lameness in tied Danish dairy cattle: the possible influence of housing systems, management, milk yield and príor incidents of lameness

      Alban, L., Agger, Jens Frederik Gramstrup & Lawson, G. L., 1996, In: Preventive Veterinary Medicine. 29, p. 135-149 15 p.

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

    33. Published

      Reported behaviour problems in pet dogs in Denmark: age distribution and influence of breed and gender

      Lund, J. D., Agger, Jens Frederik Gramstrup & Vestergaard, K. S., 1996, In: Preventive Veterinary Medicine. 28, p. 33-48 16 p.

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

    34. Published

      Risikofaktorer associeret med salmonellaforekomst i danske slagtekyllingeflokke

      Skov, M. N., Angen, Ø., Chriél, M., Agger, Jens Frederik Gramstrup & Bisgaard, M., 1996, In: Dansk Veterinærtidsskrift. 79, 10, p. 435-439 5 p.

      Research output: Contribution to journal › Journal article › Research

    35. Published

      Welfare in Danish dairy herds 1: disease management routines in 1983 and 1994

      Alban, L. & Agger, Jens Frederik Gramstrup, 1996, In: Acta Veterinaria Scandinavica (Print Edition). 37, p. 49-63 15 p.

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

    36. Published

      Welfare in Danish dairy herds 2: housing systems and grazing procedures in 1983 and 1994

      Alban, L. & Agger, Jens Frederik Gramstrup, 1996, In: Acta Veterinaria Scandinavica (Print Edition). 37, p. 65-77 13 p.

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

    37. Published

      Welfare in Danish dairy herds 3: management and general routines in 1983 and 1994

      Agger, Jens Frederik Gramstrup & Alban, L., 1996, In: Acta Veterinaria Scandinavica (Print Edition). 37, p. 79-97 19 p.

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

    38. 1995
    39. Published

      Foul in the foot (interdigital necrobacillosis) in Danish dairy cows - frequency and possible risk factors

      Alban, L., Lawson, G. L. & Agger, Jens Frederik Gramstrup, 1995, In: Preventive Veterinary Medicine. 24, p. 73-82 10 p.

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

    40. Published

      Monitoring health and welfare in Danish dairy herds

      Agger, Jens Frederik Gramstrup & Alban, L., 1995. 1 p.

      Research output: Contribution to conference › Paper › Research

    41. Published

      The relative preferences for feathers, straw, wood-shavings and sand for dustbathing, pecking and scratching in domestic chicks

      Sanotra, G. S., Vestergaard, K. S., Agger, Jens Frederik Gramstrup & Lawson, G. L., 1995, In: Applied Animal Behaviour Science. 43, p. 263-277 15 p.

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

    42. Published

      Welfare in Danish dairy cows: housing, and disease and health management patterns

      Agger, Jens Frederik Gramstrup & Alban, L., 1995, Programme and abstracts. 1 p.

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

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