Use of a Cow-side Antibiotic Susceptibility Test to Predict Gram Staining Characteristics of Clinical Mastitis Pathogens of Dairy Cattle

Authors

  • J. Wenz Integrated Livestock Management, Dept. of Clinical Science, Colorado State University, Ft. Collins, CO 80253
  • R. Elia Integrated Livestock Management, Dept. of Clinical Science, Colorado State University, Ft. Collins, CO 80253
  • S. Lawson Integrated Livestock Management, Dept. of Clinical Science, Colorado State University, Ft. Collins, CO 80253
  • F. Garry Integrated Livestock Management, Dept. of Clinical Science, Colorado State University, Ft. Collins, CO 80253

DOI:

https://doi.org/10.21423/aabppro20035317

Keywords:

mastitis pathogen, rapid identification, streptococci, MASTiK, antibiotic susceptibility test, gram-negative pathogen

Abstract

Gram-staining characteristics of mastitis pathogens are an important consideration when developing mastitis treatment protocols. Rapid identification of clinical episodes due to gram-negative pathogens could reduce the use of intramammary mastitis (IMM) treatments with poor efficacy, while ensuring treatment of environmental streptococci infections. The objective of this study was to determine if the MASTiK® cow-side antibiotic susceptibility test could be used to predict whether a clinical mastitis episode was caused by a gram-negative pathogen, based on the susceptibility pattern obtained from the test, with the assumption that gram-negative clinical mastitis would not be treated with intramammary antibiotics.

Cover image of the 36th Conference Proceedings: Holstein cows standing in a row at a fence. One cow has put her head through the fence and is curiously inspecting a pile of hay. Yellow background.

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Published

2003-09-18

Issue

2003

Section

Research Summaries - Dairy II