MRLS Workshop Proceedings Available

The Kentucky Agricultural Experiment Station has published the scientific papers from the August 2002 workshop on mare reproductive loss syndrome (MRLS) convened at the University of Kentucky's (UK) Gluck Equine Research Center. This information is available in book form or electronically at

The MRLS workshop proceedings is the definitive compilation of all types of information regarding MRLS from researchers, practicing veterinarians, laboratories, and the industry. The workshop was sponsored by the Grayson-Jockey Club Research Foundation, Keeneland Association, The Gluck Center, and the UK College of Agriculture.

"We anticipate publication of the proceedings will stimulate further activity to identify the cause of MRLS," said David Powell, BVSc, of the Gluck Center.

The topics are broken down into eight categories that each have summaries, plus a summary for the entire workshop. For example, Session One on Field and Clinical Observations on MRLS has five presentations and a summary. The presentations are:

  • Clinical Observations Associated with Early Fetal Loss in MRLS during 2001 and 2002 Breeding Seasons;
  • Field and Clinical Observations Related to Late Fetal Loss in Mares;
  • Affected with MRLS: Clinical Observations of MRLS in Critical Care Mares and Foals;
  • Endophthalmitis: A Syndrome Associated with MRLS?; and
  • Clinical Observations of the Pericarditis Syndrome.

The other categories are:

  • Laboratory Correlates of MRLS;
  • Epidemiological and Climatic Correlates of MRLS;
  • Potential Candidates for the Eastern Tent Caterpillar (ETC) MRLS-Inducing Agent;
  • MRLS and Associated Syndromes: Toxicological Hypotheses;
  • Experimental Replication of MRLS;
  • The Black Cherry Tree/ETC/ETC Frass System; and
  • MRLS Monitoring Programs for 2002.

Also included are a list of abbreviations, bibliographies, suggested readings, and a list of workshop participants.

For all those touched by MRLS in 2001 and 2002, this publication from the workshop is a must-read to prepare for the future. More MRLS research is ongoing, and continued monitoring and experiments will hopefully reveal the causative factor(s) of this syndrome in order for horse owners to avoid these problems in the future.

Copies can be obtained by contacting Gracie Hale, Morris Library, Gluck Equine Research Center, University of Kentucky, Lexington, KY 40546; 859/257-1192; fax 859/257-8542;

About the Author

Kimberly S. Brown

Kimberly S. Brown was the Publisher/Editor of The Horse: Your Guide To Equine Health Care from June 2008 to March 2010, and she served in various positions at Blood-Horse Publications since 1980.

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