EQ CONSULTANTS
MANAGEMENT
What’s the best way to control “marish” behavior?
Q: Is there a reliable way to control estrus-related behavior in mares?
My otherwise easy mare becomes very difficult for a few days every month or so through the spring and summer. She is pushy with her herdmates and grumpy around people---squealing when she’s groomed and shutting down when I try to ride. I’ve given up trying to work with her on certain days. I’ve heard about medications and even spaying, but I don’t really know the pros and cons of each. What are my options?
A: This is a common question, for sure. And the short answer is yes! The signs of estrus in mares vary from none at all to those you describe and more, such as kicking, reluctance to move and even signs of colic. There are ways to suppress estrus in your mare, but before considering those options, it is important to determine if her unwanted behavior is indeed due to being in heat. The periodic display of marish behavior seemingly associated with her heat certainly suggests a close association. If an investigation led by your veterinarian connects your mare’s
