Abortion and Embryonic Death

Article

Kentucky Reports Mare Reproductive Loss Syndrome Cases

May 13, 2009

The University of Kentucky Livestock Disease Diagnostic Center (LDDC) reported today (May 13) that two fetal necropsy cases had findings consistent with mare reproductive loss syndrome (MRLS), the disease that in 2001-2002 in Kentucky caused an... Read More

Article

Early Embryonic Loss and Genetics

April 22, 2009

Chromosomes are large segments of DNA wound around special proteins within each cell's nucleus. They contain nearly all of the body's genetic material. Horses have 64 chromosomes (or 32 pairs) including the two sex chromosomes (XY in males and X... Read More

Article

Monitoring and Preventing Equine Herpesvirus Abortions

August 03, 2008

The monitoring of abortions attributable to equine herpesvirus-1 (EHV-1) initiated in 1957 among the Thoroughbred mare population of Central Kentucky has continued annually for the past 51 years. The number of EHV-1 abortions per 1,000 pregnant... Read More

Article

MRLS: Caterpillar Population Up Sharply from 2007

May 09, 2008

Experts with the University of Kentucky (UK) report that Eastern tent caterpillars are now wandering in the area, and population levels are among the highest they've seen since the 2001, when mare reproductive loss syndrome (MRLS) hit Central... Read More

Video

Foal Diseases

May 08, 2008

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Article

Leptospirosis: What Is It?

March 01, 2008


Don’t overlook this "bug" that can cause abortion and uveitis (moon blindness).

Many horse people don't know that much about leptospirosis. If you have heard of it, it is probably in... Read More

Article

Laboratory Testing Can Help Pinpoint Cause of Abortion

February 05, 2008

When a mare aborts a foal, it can be a traumatic event for both horse and owner. While emotionally and financially expensive, abortion is not terribly uncommon in the equine breeding business. As many as 30% of broodmares fail to produce a... Read More

Article

Reproductive Hormones Directly Influence Embryo Development

January 26, 2008

A group of Dutch researchers reported evidence that the equine conceptus (i.e., the embryo and associated membranes) might be directly responsive to the reproductive hormones progesterone and estrogen,... Read More

Article

Fetotomy: A Viable Option for Resolving Dystocia Caused by Nonviable Foals

August 06, 2007

Fetotomy (the vaginal removal from a mare of a dead fetus in two or more pieces) is a viable option for resolving severe dystocia (difficult birth), with better mare survival rates than those cases involving Cesarean section, according to... Read More

Article

Diagnosis, Management, and Diagnostic Investigation of Abortion

February 01, 2007

Careful management of pregnant mares and preparation for parturition is essential to help prevent cases of equine abortion--losses of pregnancy between 150-300 days of gestation. "The incidence of abortion in mares ranges from 5-15%, and this ha... Read More

Article

Buserelin Use in the Anestrus Mare

February 01, 2007

A compounded drug has shown considerable promise in treating anestrus mares--those that are not cycling and thus are difficult to impregnate. Walter Zent, DVM, of Hagyard Equine Medical Institute, described his experience using Buserelin in mare... Read More

Article

From Breeding to Birth

February 01, 2007

Testing innovative techniques and brushing up on common procedures are the lifeblood of advancing any medical specialty, and the field of equine reproduction is no exception. Veterinarians are always looking for new ways to improve procedures they... Read More

Article

Oregon State Study Links Virus to 2001 Kentucky Abortions

June 23, 2006

Veterinary researchers at Oregon State University (OSU) announced today that they have linked a major abortion epidemic in Central Kentucky mares in 2001 to vesivirus infection. This marks the first time the virus has been... Read More

Download

Herpes by the Numbers

June 08, 2006

A guide to nine types of herpesvirus can cause different problems in your horse.... Read More

Download

Herpesvirus Management Basics

June 08, 2006

There are basic tools a farm, stable, or barn manager can use to reduce the incidence of equine herpesvirus.... Read More

Article

Umbilical Cord Length and Foal Health

May 23, 2005

A long umbilical cord increases the risks for abortions and stillbirths in horses. Complications include strangulation of the foal and excessive cord twisting, writes Karin Bosh in a recent edition of Equine Disease Quarterly, a newsletter... Read More

Article

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

Article

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

Article

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

Article

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

Article

Open Mares

March 01, 2004

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

Article

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

Article

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

Article

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

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