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Related Experiment Videos

Diarrhea in Neonatal Rats.

Naomi M. Gades1, Timothy D. Mandrell, William P. Rogers

  • 1The University of Tennessee, Memphis, Department of Comparative Medicine, 956 Court Avenue, Box 17, Memphis, TN 38163.

Contemporary Topics in Laboratory Animal Science
|June 28, 2002
PubMed
Summary

A study found streptococcal enteropathy in Sprague-Dawley rat pups exhibiting diarrhea and poor growth. This diagnosis was confirmed through various diagnostic tests, highlighting a specific bacterial cause for neonatal rat enteritis.

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Area of Science:

  • Veterinary Pathology
  • Rodent Health
  • Microbiology

Background:

  • Neonatal Sprague-Dawley rat pups presented with clinical signs of diarrhea, including unthriftiness, rough hair coats, and perineal soiling.
  • The dam exhibited similar signs, suggesting a potential shared etiology affecting the dam and her litter.

Purpose of the Study:

  • To investigate the cause of diarrhea and poor growth in a litter of neonatal Sprague-Dawley rats.
  • To differentiate between potential bacterial, viral, and parasitic causes of enteritis in young rats.

Main Methods:

  • Clinical examination of the dam and pups.
  • Necropsy, complete blood count, serology, bacterial culture, and histopathology were performed.
  • Diagnostic tests were utilized to identify the etiological agent responsible for the observed clinical signs.

Main Results:

  • Histopathology and bacterial culture results were consistent with streptococcal enteropathy.
  • The findings indicated a specific bacterial infection as the cause of the gastrointestinal distress.

Conclusions:

  • Streptococcal enteropathy is identified as the cause of diarrhea and poor condition in this litter of Sprague-Dawley rats.
  • This highlights the importance of microbiological and histopathological diagnostics in neonatal rodent disease investigations.

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