Mares in Heat: What’s Normal, What’s Not?
Karen Hopper Usher
May 5, 2026
Mares get a bad rap for recalcitrant estrous behavior, but hormones and tumors could also be at play.
Mares get a bad rap for recalcitrant estrous behavior, but hormones and tumors could also be at play.
Do we underestimate the impact of ill-fitting tack on our horses? Learn how to recognize and address saddle fit problems.
Rethink parasite control by battling resistance, using evidence-based deworming, dispelling myths, and involving your veterinarian. Sponsored by Bimeda.
Dr. Nancy Diehl addresses a question about why a mare might respond differently to training after having her first foal.
Consider these 8 behaviors that could suggest your horse struggles to see.
Forage should be the basis of your horse’s diet. Here’s what factors to consider when choosing a forage.
Find out how postbiotics influence horse health and which horses might benefit from supplementation.
‘Low-starch’ horse feeds do not have a standard definition. Nutritionists recommend testing forage and calculating total diet NSCs to manage sugars and starches safely.
Read about how veterinarians incorporate therapies such as acupuncture and PEMF to help your horse feel his best.
Veterinarians successfully repaired a rare C6 fracture using advanced imaging and computer-assisted navigation. Read more in the Spring 2026 issue of The Horse.
Note how supplements are regulated, what your horse actually needs, and the cost per active ingredient before buying a supplement.
Learn about the differences between squamous and glandular disease and why you should tailor management tactics to the specific condition.
Is your horse’s diet and microbiome to blame for bad behavior? In this article we’ll break down the research.
Selective treatment strategies can combat antimicrobial resistance while protecting foals from R. equi.
Here’s what researchers learned from this first-of-its-kind study.
Giving horses sufficient time to recover from athletic events could help them avoid acute injury and long-term health problems.
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