Abortion and Embryonic Death


Fetus at Risk

March 03, 2005

When a pregnant mare develops a problem that puts her fetus at risk, what can be done? Some of these foals can be saved if the problem can be discovered early and the mare given proper treatment to reverse the condition.

Jon Palmer, VMD,... Read More


Australian Mystery Disease

January 01, 2005

Reports are circulating that a disease similar to mare reproductive loss syndrome (MRLS) is occurring in Australia. In a correspondence, Nigel Perkins, BVSc, MS, Dipl. ACT, FACVSc, of the private consulting firm AusVet Animal Health Services,... Read More


Leptospirosis in Central Kentucky

December 17, 2004

High incidences of leptospirosis-induced abortions in Central Kentucky horses could be caused by a tandem effect of temperature and precipitation in certain years, said Capt. David Hall of the U.S. Air Force, who defended his Masters thesis on... Read More


Australian Mystery Disease Update

December 01, 2004

On Dec. 1, we received additional information from the Hunter Valley Equine Research Centre (HVERC), a research facility adjacent to Scone racetrack in the heart of the Australian breeding area, on a problem that is causing sporadic abortions... Read More


Vaccines--Comparative Efficacy

March 01, 2004

Several researchers have been working the past few years to determine if any U.S.-registered equine vaccine had advantages over others. It turns out that the serologic responses to--and protection given by--these vaccines varies significantly.... Read More


Open Mares

March 01, 2004

An experienced veterinarian can help to determine why a seemingly healthy mare can't become pregnant.... Read More


Preparation of the Mare for Normal Foaling

January 31, 2004

Riddle said that most mares are outside all of the time or are only brought up for feeding until they reach one month before their expected foaling date. Whatever is preferred, broodmares thrive on routine.... Read More


Breeding The High-Risk Mare

January 31, 2004

With advances in modern veterinary medicine happening all of the time, the practitioners agreed that management of high-risk mares is becoming easier, and the probability of a healthy foal is increasing.... Read More


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


Veterinarians Debunk Suggested Link Between WNV Vaccine and Birth Problems

June 23, 2003

Despite recent media reports, Wyoming, Colorado, and USDA veterinarians say that there is currently no scientific proof to link the West Nile virus vaccine to aborted, stillborn, or deformed foals, and that horse owners should continue to... Read More


West Nile Virus Vaccine: Adverse Effects in Mares?

June 09, 2003

Allegations that the West Nile virus vaccine might have caused abortions and deformed foals were made in a May 30 Denver Post article. Mare owners calling themselves the “Lost Foals Group” claim the vaccine has caused up to 1,200... Read More


Next Steps Toward Solving MRLS Involve Think Tank

April 02, 2003

Veterinarians and researchers trying to pinpoint the cause of mare reproductive loss syndrome (MRLS) have joined together to create an MRLS "think tank," the progress and goals of which were discussed April 1 at a joint meeting of the Kentucky... Read More


WNV and Equine Abortions?

April 01, 2003

A question has been raised whether the increased number of West Nile virus (WNV) cases in Kentucky in late summer and fall 2002 contributed to a rise in fall abortions. A retrospective study by the University of Kentucky's Livestock Disease and... Read More


Central Kentucky Abortions Down For Third Straight Week

March 07, 2003

Reported equine abortions in Central Kentucky are down for the third week in a row and overall abortions for 2003 are drawing even with the 2002 numbers. According to figures from the University of Kentucky's Livestock Disease Diagnostic Center... Read More


Results of Farm Survey To Determine Autumn Fetal Loss Risk Factors

February 11, 2003

Results of a survey of central Kentucky horse farms has provided information on possible risk factors associated with increased fetal losses during early and late autumn 2002. The survey was conducted by the University of Kentucky Department of... Read More


Equine Abortions In Central Kentucky Still Ahead Of Last Year's Pace

February 11, 2003

The number of equine abortions in Central Kentucky remains ahead of last year's pace based on the most recent report issued by the University of Kentucky's Livestock Disease Diagnostic Center (LDDC) on Tuesday, Feb. 11. Thirty-eight aborted... Read More


2002 Fall Fetal Loss Syndrome

February 07, 2003

The results of a survey conducted by the University of Kentucky's Gluck Equine Research Center and College of Agriculture showed that a small number of Thoroughbred and other farms experienced an unusual increase in what is being termed fal... Read More


WNV and Kentucky Abortions?

February 05, 2003

A question has been raised whether the increased number of West Nile virus (WNV) cases in Kentucky in late summer and fall 2002 contributed to a rise in fall abortions. A retrospective study by the University of Kentucky’s Livestock Disease and... Read More


KAEP Statement Regarding Kentucky Abortions

February 03, 2003

The statement below was released Feb. 2 by the Kentucky Association of Equine Practitioners.

“Due to the increased surveillance of any equine abortions in the past two years, the Lexington Disease and Diagnostic Center (LDDC) has... Read More


No Live Foal Guarantees

February 01, 2003

Subconsciously, you've been holding your breath for months. From the moment your mare was confirmed in foal, it's been a tense waiting game. And although she will be foaling soon, you know a healthy foal is still anything but a given. Between... Read More


Abortions Up In Central Kentucky; Signs Not Consistent With MRLS

January 31, 2003

The abortion rate in Central Kentucky is up from a year ago, but scientists aren't sure why there has been an increase.

"At this time, there is nothing that is fully consistent with MRLS (mare reproductive loss syndrome)," said Dr. Lenn... Read More


Kentucky Abortions Update

December 18, 2002

The “blip” of abortions seen in August, September, and October in Kentucky has continued on through December. With only about 50 total abortions reported, this problem might not even catch the attention of many people in a normal year, as... Read More


Luteal Insufficiency in the Mare

November 08, 2002

Insufficient function of the corpus luteum (the structure formed after the follicle that releases the egg, or ovulates, and then produces progesterone) has been proposed as a mechanism for early embryonic loss in the mare, but until now there... Read More


Fall Abortions in Kentucky

October 28, 2002

Pathologists at the Kentucky Livestock Disease Diagnostic Center (LDDC) in Lexington noticed that a few more fetal losses were being seen than was usual during August, September, and October. That prompted increased surveillance and reporting,... Read More


Caterpillars Cause Late-Term Abortions

July 16, 2002

The University of Kentucky (UK) College of Agriculture today is releasing preliminary results from a collaborative project involving the UK Livestock Disease Diagnostic Center (Drs. Lenn Harrison, Manu Sebastian, and Deborah Williams), UK... Read More