Mare Reproductive Loss Syndrome (MRLS)

Article

Funding Sought for Reproductive Research

January 12, 2004

When mare reproductive loss syndrome (MRLS) struck in 2001, the industry was scared and demanding answers. Nearly 3,000 of that year's pregnancies were lost, some horses were diagnosed with heart and eye problems, and no one could figure out wha... Read More

Article

MRLS Experiment Rundown

January 07, 2004

A meeting at Keeneland racetrack for a select group from local Thoroughbred breeding farms on Jan. 6 offered a wrap-up of the six experiments done by researchers at the University of Kentucky pertaining to mare reproductive loss syndrome (MRLS).... Read More

Article

MRLS: We Need To Know More

January 06, 2004

“In the final analysis, we do not understand this disease,” said Bruce Webb, PhD, an entomologist at the University of Kentucky who has been a leading researcher into the problem of mare reproductive loss syndrome (MRLS).

Webb and... Read More

Article

The Goal is a Foal

January 01, 2004

If your broodmare or stallion is having reproductive problems, you might need a specialist to figure out what's wrong. And that specialist might use knowledge gained from the annual conference of the Society for Theriogenology held in Columbus,... Read More

Article

More MRLS Research

November 04, 2003

Mare reproductive loss syndrome (MRLS) has been a primary research project for many veterinarians and scientists since it began causing early and late term abortions, sickness in foals, pericarditis (heart problems), and uveitis (eye problems) i... Read More

Article

MRLS and Caterpillar Hairs

November 01, 2003

There is new evidence that the setae (hair-like projections) on Eastern tent caterpillars (ETC) can become embedded in the submucosal lining of the alimentary tract (from the mouth to the colon) of animals and cause microgranulomas (small,... Read More

Article

MRLS Research Funding Exceeds $2 million; More Needed

September 23, 2003

Funding figures from the University of Kentucky and non-university sources for research on mare reproductive loss syndrome (MRLS) were recently made available. The problem is estimated to have cost the horse industry in Kentucky nearly $500... Read More

Article

Breeders Granted $5 Million in Loans to Help with MRLS

September 23, 2003

The U.S. Department of Agriculture's Farm Service Agency (FSA) has approved $5,407,739.00 in low-interest loans for breeders in Central Kentucky who were negatively impacted by mare reproductive loss syndrome.

The program was developed b... Read More

Article

Eastern Tent Caterpillar Setae in Digestive Tract of Mare

September 19, 2003

Hair remnants, resembling Eastern tent caterpillar (ETC) setae (hair-like projections on the outside of the caterpillar), were found embedded in the submucosa of the digestive tract of one mare fed ETC larvae. Examination of this mare represents... Read More

Article

Bacterial Involvement in MRLS

September 15, 2003

Eastern tent caterpillars (ETC), plus some bacteria, plus a mechanism to deliver bacteria to blood, equals MRLS (mare reproductive loss syndrome). This summary of a hypothesis based on accumulating data was presented at a regular weekly meeting... Read More

Article

Setae and MRLS

September 12, 2003

Studies to determine the cause of mare reproductive loss syndrome (MRLS) have led investigators to associate the syndrome with exposure to the Eastern tent caterpillar. Although the exact cause of MRLS remains unknown, some component of the oute... Read More

Article

A Hairy Situation

September 12, 2003

Another new word has been added to the equine world--setae (prounced see-tay). Why? Horses have hair, caterpillars have setae. There are some researchers who hold the belief that these hair-like projections on the skin of Eastern tent... Read More

Article

Irritating Caterpillars

September 12, 2003

While we all were irritated to some extent by the massive amounts of caterpillars in 2001 and 2002--stepping on them, having them climb our fences, houses, cars, gates, and everything else around our homes and farms--there is new evidence that... Read More

Article

Study Shows Caterpillars Cause Fetal Loss in Pigs; Problems Similar to MRLS

September 08, 2003

Eastern tent caterpillars (ETC) caused fetal loss in domestic pigs based on a recent study, according to a press release issued Sept. 5 by the University of Kentucky. The experiment demonstrated for the first time that ETC could... Read More

Article

Chemical Implicated in Causing MRLS

August 01, 2003

Research has shown that it probably isn't a virus or bacteria (a biological agent) that links the Eastern tent caterpillar (ETC) to mare reproductive loss syndrome (MRLS). Bill Bernard, DVM, Dipl. ACVIM, of Rood and Riddle Equine Hospital in... Read More

Article

MRLS Workshop Proceedings Available

July 01, 2003

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... Read More

Article

Kentucky MRLS 2003 Update

June 30, 2003

There was some apprehension in Central Kentucky as to whether the elimination of cherry trees and spraying for caterpillars would be enough to decrease the numbers of mare reproductive loss (MRLS) abortions that occurred in 2001, and to a lesser... Read More

Article

Chemical Implicated in Causing MRLS

June 26, 2003

A research project has determined that it probably isn't a virus or bacteria (a biological agent) that links the Eastern tent caterpillar (ETC) to mare reproductive loss syndrome (MRLS). Bill Bernard, DVM, Dipl. ACVIM, an internal medicine... Read More

Article

MRLS Agent in or on Caterpillar Exoskeleton

June 10, 2003

The University of Kentucky College of Agriculture last week released the results of a recently completed experiment conducted by the Departments of Veterinary Science (Karen McDowell, MS, PhD) and Entomology (Bruce Webb, MS, PhD, and... Read More

Article

University of Kentucky Pasture Monitoring Interim Report--Comparison of 2002 and 2003

May 29, 2003

Jimmy C. Henning, Assistant Director for Cooperative Extension, Agriculture and Natural Resources, Former Extension Forage Specialist;and Wayne Long, Agriculture Extension Associate, Department of Agronomy, University of Kentucky... Read More

Article

MRLS Workshop Proceedings Available

May 27, 2003

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 Gluck Equine Research Center. This information is... Read More

Article

U.K. Equine Influenza Outbreak Update

May 12, 2003

Since the middle of March, the United Kingdom's Animal Health Trust (AHT) has confirmed influenza in 20 racing yards (stables) in Newmarket, located in different areas of the town, and in a single breaking/holding yard just outside... Read More

Article

Interview from a MRLS Test Farm

May 08, 2003

Some horse and agriculture farms were asked to be test farms during and after the mare reproductive loss (MRLS) crisis in 2001. One of those farms is Glennwood Farm in Versailles, Ky., owned by John D.... Read More

Article

Eastern Tent Caterpillar Update

April 30, 2003

By Lee Townsend, Extension Entomologist
Department of Entomology
University of Kentucky College of Agriculture

Read More

Article

Pasture Management and MRLS

April 07, 2003

In the spring of 2001, hundreds of mares in Central Kentucky lost their pregnancies in peculiar abortions attributed to mare reproductive loss syndrome (MRLS). Since then, horse farm managers have gone back to square one in reviewing their... Read More