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Enteropathogens and risk factors for diarrhea in Norwegian dairy calves

Journal of Dairy Science, ISSN: 0022-0302, Vol: 92, Issue: 10, Page: 5057-5066
2009
  • 120
    Citations
  • 0
    Usage
  • 183
    Captures
  • 1
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    120
  • Captures
    183
  • Mentions
    1
    • News Mentions
      1
      • News
        1

Most Recent News

Biological sciences / Journal of Animal and Plant Sciences, "STUDY ON THE PREVALENCE OF CRYPTOSPORIDIUM IN CALVES SUFFERING FROM DIARRHEA IN NORTHWESTERN SYRIA."

Byline: H. F. Altaweel, F. Al-Daoud and G. Mushtaq KeyWords: newborn calves, diarrhea, multiscreen ELISA, Cryptosporidium INTRODUCTION Intestinal and respiratory disorders are the most frequently

Article Description

The aims of the current study were to estimate the prevalence of enteropathogens in calves in Norwegian dairy herds, evaluate the clinical consequences of protozoal infections, and identify risk factors for diarrhea. The 135 participating herds were randomly selected from those in The Norwegian Dairy Herd Recording System that had at least 15 cow-years. Each herd was followed for 1 yr. Fecal samples from calves with (n = 68) or without (n = 691) diarrhea were analyzed for the presence of Cryptosporidium, Giardia, and Eimeria species. Diarrheic samples (n = 191) were assayed for rotavirus group A, bovine coronavirus (BCoV), Cryptosporidium, and Escherichia coli F5 by antigen ELISA. Blood samples (n = 1,348) were analyzed for antibodies against BCoV and rotavirus. Potential risk factors for diarrhea were analyzed by using Cox regression analysis adjusted for herd frailty effect. Rotavirus and Cryptosporidium were the most commonly detected enteropathogens in diarrheic samples. A high level of Cryptosporidium shedding or BCoV seropositive calves in a herd was associated with an increased risk of diarrhea. Other factors found to increase the risk of diarrhea were use of slatted concrete floor in group pens versus other floor types [hazard ratio (HR) = 8.9], housing of calves in free-stalls compared with tie-stalls (HR = 3.7), purchasing of calves into the herd versus not purchasing calves (HR = 4.1), and calves being born during winter compared with other seasons of the year (HR = 1.5).

Bibliographic Details

S. M. Gulliksen; K. I. Lie; I. S. Hamnes; T. Løken; O. Østerås; E. Jor; J. Åkerstedt

American Dairy Science Association

Agricultural and Biological Sciences; Biochemistry, Genetics and Molecular Biology

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