Abortion and Embryonic Death


Untimely End--Early Embryonic Death

April 01, 2001

Breeding horses can be both exhilarating and devastating. Wrapped up in the process are hopes, dreams, and visions of future greatness and glory. The hopes and dreams begin with the selection of a stallion for your special mare. You assess her... Read More


The Trouble With Twins

March 01, 2001

Breeders should endeavor to remove one of the twin embryos early in pregnancy.... Read More


False Pregnancy

August 01, 2000

It is a frustrating condition. Even though a mare is not pregnant, her body tells her that she is, and all of her reproductive systems react accordingly. She does not come into heat, and her body begins preparations for housing and nourishing a... Read More


Fescue Toxicosis And Treatment

July 01, 2000

When tall fescue first arrived in the United States during the 1940s, it was considered a wonder grass. It was easy to establish, it yielded a good amount of forage, it was tolerant of a wide range of management regimens, and it could handle a... Read More


University Of Pennsylvania To Identify Causes Of Abortion And Pregnancy Wastage In Study

January 08, 1999

Researchers at the University of Pennsylvania School of Veterinary Medicine received funding from the Pennsylvania Department of Agriculture for a three year study to identify the causes of abortion and pregnancy wastage in... Read More


Fetal Development and Foal Growth

January 01, 1999

Foals born to mares which do not receive proper nourishment during gestation could be born weak.... Read More


Leptospirosis in Horses

October 01, 1998

Acute leptospirosis in horses is characterized by fever of 103-105° Fahrenheit for two to three days, depressi... Read More


Oxytocin And Maternal Recognition Of Pregnancy In Mares

January 09, 1998

It is well established that early conceptus loss (the embryo and its associated extra-embryonic membranes) is a major source of reproductive inefficiency in domestic animals. Early pregnancy in all mammals is characterized by a high fertilizatio... Read More


Monitoring Fetal Well-Being

October 01, 1997

Fetal monitoring in horses is similar to the methods used for humans -- ultrasound, EKG machines, and blood tests on unborns all are part of monitoring the health of the fetus. Advances in these areas for equines have allowed for... Read More


Equine Herpes Virus

September 01, 1997

The first thought that comes to most people when the word "herpes" is mentioned is one of those nagging pain-in-the-neck cold sores, one type of which is caused by a herpes virus, and the venereal disease "herpes simplex." The word "herpes"... Read More


Barren Mares

June 01, 1997

For a successful domestic species, the fertility rate of the horse is surprisingly low. Coupled with an 11-month gestation period and a single offspring per year, producing a foal is a significant investment for any breeder. So, if you're... Read More


Endophyte-Infested Fescue: Hidden Dangers

March 01, 1997

Horse breeders noticed that they were having foaling problems with some mares which were grazing fescue grass or being fed fescue hay. Cattle producers reported that steers on fescue pastures or being fed fescue hay appeared to be unthrifty and that ... Read More



February 01, 1996

Congratulations, you have successfully bred your mare. But do you have time to sit back, catch your breath, and wait eleven months for the foal? Unfortunately not. You might have cleared the first hurdle, but the obstacle course has just begun.... Read More