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Related Experiment Videos

Pyelonephritis in cows: 15 cases (1982-1986).

W C Rebhun1, S G Dill, J A Perdrizet

  • 1Department of Clinical Sciences, New York State College of Veterinary Medicine, Cornell University, Ithaca, NY 14853.

Journal of the American Veterinary Medical Association
|April 1, 1989
PubMed
Summary

Pyelonephritis in adult cows is often subtle, but physical exams and urine tests can detect it. Antimicrobial treatment is effective for most cows with Corynebacterium renale or Escherichia coli infections.

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Area of Science:

  • Veterinary Medicine
  • Bacteriology
  • Animal Health

Background:

  • Pyelonephritis, a kidney infection, can be challenging to diagnose in adult cows.
  • Clinical signs may be absent or non-specific, complicating early detection.
  • Urinary tract infections (UTIs) in cattle require effective diagnostic and treatment strategies.

Purpose of the Study:

  • To retrospectively evaluate diagnostic methods and treatment outcomes for pyelonephritis in adult cows.
  • To identify the causative bacterial agents of pyelonephritis in the studied herd.
  • To assess the efficacy of antimicrobial therapy for bovine pyelonephritis.

Main Methods:

  • Retrospective analysis of medical records from 15 adult cows diagnosed with pyelonephritis.
  • Physical examination, including rectal and vaginal palpation, and urine reagent strip screening.

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  • Bacteriologic culture of urine samples obtained via catheterization for pathogen identification.

    • Main Results:

    • Only 3 of 15 cows exhibited obvious signs of urinary tract disease.
    • Abnormalities were detected in all cows through physical examination and urine screening.
    • Corynebacterium renale (6 cows) and Escherichia coli (9 cows) were identified as causative agents.
    • Long-term antimicrobial treatment led to recovery in 9 of 11 treated cows (4/4 C. renale, 5/7 E. coli).
    • Two cows with E. coli infection did not survive.

    Conclusions:

    • Physical examination and urine analysis are crucial for diagnosing pyelonephritis in cows, even with subtle clinical signs.
    • Antimicrobial therapy demonstrates good efficacy against C. renale and E. coli causing pyelonephritis in cattle.
    • Prompt diagnosis and treatment are vital for improving recovery rates and reducing mortality in pyelonephritis cases.