Antimicrobial Treatment Strategies for Streptococcal and Staphylococcal Mastitis

Authors

  • K. D. Crandall Department of Large Animal Clinical Sciences, College of Veterinary Medicine, Michigan State University, East Lansing, MI
  • W. M. Guterbock den Dulk Dairy LLC. Coopersville, MI
  • P. M. Sears Department of Large Animal Clinical Sciences, College of Veterinary Medicine, Michigan State University, East Lansing, MI

DOI:

https://doi.org/10.21423/aabppro20044944

Keywords:

intramammary antimicrobial therapy, Mastitis, streptococcal, staphylococcal

Abstract

Mastitis is one of the most costly diseases encountered by a dairyman. Traditional therapy aimed at curing clinical mastitis cases includes intramammary (IMM) antimicrobial therapy. Most, if not all, commercially available IMM antimicrobial products are effective only against gram-positive organisms, mainly streptococcal and staphylococcal species. In spite of multiple available IMM antimicrobial products, cure rates for clinical mastitis run about 46% for strep species, 21 % for staph species, and 9% for Staphylococcus aureus mastitis. This study investigated the use of systemic antimicrobial therapy (ampicillin) in conjunction with IMM antimicrobial therapy for strep species., staph species., and S. aureus on a commercial dairy.

Cover image of the 37th Conference Proceedings: Cattle in pens that stretch to the horizon. Yellow background.

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Published

2004-09-23

Issue

2004

Section

Research Summaries - Dairy I