Mare Reproductive Loss Syndrome

By Jos Mottershead

Please note that this article was written in 2001, and although updated, research is ongoing. We therefore recommend visiting the University of Kentucky site to review the latest information. What we provide below is a synopsis of what was determined during 2001 while the situation was at its worst.

In the spring of 2001, there appeared a situation in Kentucky USA that affected pregnancy maintenance and live foal rates in mares of multiple breeds, not only the Thoroughbreds for which the region is famed.

Term or close-to term abortions:

Early pregnancy loss:


Other genders, ages and locations:

Hypothesizing of cause:

Preventative measures:

Other comments:

© 2003 Jos Mottershead and
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