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Related Experiment Video

Updated: May 21, 2026

A Ligated Intestinal Loop Model in Anesthetized Specific Pathogen Free Chickens to Study Clostridium Perfringens Virulence

A Ligated Intestinal Loop Model in Anesthetized Specific Pathogen Free Chickens to Study Clostridium Perfringens Virulence

Published on: October 11, 2018

Green algal peritonitis in 2 cows.

S Hafner¹, C C Brown, J Zhang

¹United States Department of Agriculture, Food Safety and Inspection Service, Office of Public Health Science, Eastern Laboratory, Athens, GA 30605, USA. scott.hafner@fsis.usda.gov

Veterinary Pathology

|June 13, 2012

Summary

Green algae infections caused peritonitis in two cows, a condition previously linked to bovine lymphadenitis. Genetic analysis suggests the algae belong to the Scenedesmus genus.

Area of Science:

Veterinary Pathology
Microbiology
Algal Biology

Background:

Bovine peritonitis is a serious condition affecting cattle health.
Infections with various microorganisms can lead to peritonitis in livestock.
Previous associations between algae and bovine lymphadenitis have been noted.

Observation:

Peritonitis was diagnosed in two cows at slaughter in Texas and South Dakota.
One affected cow also presented with generalized lymphadenitis.
Histological examination revealed intralesional green algae resembling those linked to bovine lymphadenitis.

Findings:

The identified green algae were histologically similar to those previously associated with bovine lymphadenitis.
Sequencing of the algal ITS2 genes showed higher homology with the genus Scenedesmus compared to Chlorella.

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Last Updated: May 21, 2026

A Ligated Intestinal Loop Model in Anesthetized Specific Pathogen Free Chickens to Study Clostridium Perfringens Virulence

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Published on: October 11, 2018

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This suggests a potential role for Scenedesmus species in bovine peritonitis and lymphadenitis.

Implications:

This study highlights a potential etiological agent for bovine peritonitis and lymphadenitis.
Further research into algal infections in cattle may be warranted.
Understanding the role of Scenedesmus in bovine disease could inform preventative strategies.