Ship speed applies to in stock items, pending location. Does not include personalized items like engraving, embroidery, SmartPaks, or PortionPaks. Complete details on our Shipping Policies page.
SmartPaks help you take great care of your horse, so we take great care of you with SmartPerks! When you order your horse's supplements in SmartPaks, you're automatically* eligible for our FREE SmartPerks benefits, including:
  • Free ground shipping on what you want, when you want it
  • 10% off all Smartpak brand tack, apparel, and gear
  • A free Team SmartPak calendar, exclusive email offers and discounts, and more!
Learn more about SmartPerks
*At least one horse's individual SmartPaks must be over $40. Some exclusions apply.
Visit SmartPak.com/SmartPerks or call 1-800-461-8898 for details.


Mare-ish Behavior

By: Dr. Lydia Gray

What is it?

Some mares experience temperament changes when they come into "heat" that not only interfere with training and showing but also make day-to-day handling a challenge. These changes in behavior can range from trouble focusing to acting like there is physical pain to just being irritable and cranky. Temperament changes may be most noticeable during the spring and fall when mares transition into and out of the breeding season.

What can be done about it?

The complete estrous cycle in the mare is about 21-22 days long. Actual "heat" or estrus averages 5-7 days, although it can range from 2-11 days. During this time the hormone estrogen peaks and mares become receptive to stallions. After ovulation, mares go out of heat for 14-16 days while under the influence of a different hormone, progesterone. Mares that do not seem to cycle properly or that become dangerous during estrus should be examined by a veterinarian to rule out medical problems. A veterinarian can also prescribe Regumate, a man-made form of progesterone, which can be given orally to mares for up to 15 days in a row to suppress estrus and the behavioral changes that can come with it. Several herbs are used to support a healthy and balanced hormonal system in the mare, such as Vitex agnus castus and Raspberry leaf.

What else do I need to know?

Owners should carefully review their overall management to make sure that any behavioral problems are not due to improper diet, lack of turnout and socialization, poor ground handling skills, too little or too much exercise, ill-fitting tack, training and showing schedules, transport, or some other stress.

About Dr. Lydia Gray

Healthy Horses  ❤  Happy Riders