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Related Experiment Videos

Systemic salmonellosis in mature beef cows.

R L Morter1, C H Armstrong, H E Amstutz

  • 1Department of Veterinary Clinical Sciences, School of Veterinary Medicine, Purdue University, West Lafayette, IN 47907.

Journal of Veterinary Diagnostic Investigation : Official Publication of the American Association of Veterinary Laboratory Diagnosticians, Inc
|January 1, 1989
PubMed
Summary

Systemic Salmonella typhimurium infection caused severe illness, including death and reproductive losses, in beef cows. The bacteria were found in organs but not fetuses, and diarrhea was uncommon.

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Area of Science:

  • Veterinary Medicine
  • Bacteriology
  • Animal Health

Background:

  • Salmonella typhimurium is a significant pathogen in livestock.
  • Understanding its impact on beef cattle reproduction is crucial for herd management.

Observation:

  • A systemic Salmonella typhimurium outbreak affected mature beef cows.
  • Clinical signs included mortality, abortions, and premature births.
  • Diarrhea was not a primary clinical manifestation.

Findings:

  • Salmonella typhimurium was successfully isolated from the kidney, liver, and spleen of affected cows.
  • The pathogen was not detected in an aborted fetus, suggesting transplacental transmission may not be a consistent route.

Implications:

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  • This study highlights the severe systemic effects of Salmonella typhimurium in beef cows, particularly reproductive losses.
  • Effective control strategies are needed to prevent economic losses in the beef industry.
  • Further research into transmission routes and prevention is warranted.