These resources are brought to you by the Cooperative Extension System and your Local Institution

Horses Home

Have a question? Try asking one of our Experts

The six-year-old dressage mare with which we are working has started to exhibit possible signs of cycling when under saddle. She kicks out when my daughter puts her leg on for the left bend and occasionally backs up in the midst of riding as if she's "had enough." With persistence, she has worked through these spots. She is a sweet mare who makes her best effort. We want to make her more comfortable, as we know from her owner that this imitates behavior she exhibited last year as the days became longer. Regumate was tried but not successful. Do you have another recommendation? Also, how do horses ovulate? Are they like humans who ovulate from left to right ovary alternately with each cycle? And can they feel pain with ovulation or discomfort when they cycle?

Last Updated: January 11, 2010

View as web page


Mares can have cysts on their ovaries, and they can have pain when ovulating. Mares also tend to ovulate from one ovary and then the other, but they don't have to. There can be successive ovulations from the same ovary from one cycle to the next. We would suggest you have a veterinarian perform an ultrasound on the mare and determine if she has an issue with her ovaries or if there might be something else bothering her. Ultrasound of the ovaries will reveal any abnormality that might be present. The veterinarian can also discuss with you the options of regulating her cycle using other drugs besides Regumate.

Browse related Faqs by tag: horses, management, reproduction, cycle, behavior, ovary


Have a specific question? Try asking one of our Experts

Unlike most other resources on the web, we have experts from Universities around the country ready to answer your questions.