Editor’s Note: This article has been sourced via Riva’s Remedies.

Many mares exhibit hormonal problems through mood and behaviour changes. This is often seen during a mare’s cycling days, however many mare owners report problems with their behaviour on a daily basis even when they are not cycling. Unfortunately, too many times we have simply attributed this to “mares being mares”, and have not recognized that these girls are not feeling well and that they can suffer from the same anxiety, irritability, aggression, sadness and depression as women do during PMS or an unhealthy menopause. They can also have problems with cycling pains. Pain and/or emotional symptoms make it very hard for mares to tolerate being handled or ridden, to compete and/or to cooperate with other horses. Unfortunately these behaviours often get dismissed as a personality or training problem.

Hormones are powerful chemicals that have a profound effect on the neurotransmitters of the brain: estrogen has an excitatory effect on the brain, increasing serotonin and acetylcholine levels whereas progesterone has a more calming effect. Serotonin is responsible for creating positive moods and acetylcholine is necessary for focus and memory.

As with humans, diet can be an important factor – high-sugar feed such as oats or sweet feed will exacerbate hormonal symptoms. Horse owners also report that high quantities of alfalfa can negatively affect behaviour as well. (For humans, caffeine and dairy products are the most common dietary culprits that contribute to PMS and menopausal symptoms.)

Fortunately, when hormonal mares are supplemented with the appropriate nutrients and/or hormone-balancing herbal blends they will quickly improve to experience an increase in stable moods and suffer less depression, less aggression and more motivation. Beneficial nutritional supplements include the Riva’s Vitamin B6 (pyridoxine) and Riva’s Primrose Oil. Vitamin B6 is essential for the synthesis of both hormones and neurotransmitters and has the added benefit of regulating blood sugar levels. Vitamin B6 will also support pituitary and thyroid function as these endocrine glands rely on this vitamin for optimum health. Riva’s Primrose Oil provides essential fatty acids and 9% gamma-linolenic acid (GLA) which is found in the plant seeds of evening primrose oil. Primrose oil also has anti-inflammatory properties which helps with skin conditions and arthritis.

Herbal blends for hormone balance are also available as they re-balance the estrogen and progesterone levels and calm the emotions. The Riva’s Herbal Blend for Mares contains black cohosh, blessed thistle, chamomile and wild yam root to tone the ovaries and sooth the nerves. This blend will also effectively regulate erratic cycles, ease uterine cramping and/or help to increase fertility – although it is not advisable to feed it during pregnancy. This blend has an effective stabilizing effect on moods.

If the thyroid or pituitary glands are needing support in addition to the reproductive hormones then add the Riva’s Hormone Boost which contains Ashwaghanda, Chaste Berry, Kelp, Licorice Root and Raspberry Leaf. This formula will strengthen the endocrine gland system, relieve stress and balance hormone levels. It is also beneficial in cases of Equine Metabolic Syndrome, Insulin Resistance and Cushing’s since it supports the pituitary and adrenal glands and helps to regulate insulin levels and metabolism.

If the hormones are stabilized but your mare still appears uncooperative with an attitude then she either has other underlying emotional issues (she needs to be heard) or the training program should be assessed. Some “mare behaviour” has been allowed to become a pattern, in which case competent but compassionate handling will help them establish new patterns. And don’t put food down in front of “cranky” mares until their ears come forward – this might take time at first but they should learn to “smile” in the presence of food.

With good food, supplements and common-sense handling your mare will be a happy, healthy and willing partner.

“Riva’s Healing Spirit awakens the essence that resides within each one of us
– animal or human – the heart of which connects
and aligns us with the greater spirit that heals all.”

Marijke van de Water, B.Sc., DHMS
Equine Health & Nutrition Specialist
Homeopathic Practitioner
Medical Intuitive & Healer
Author & Educator

For more information on your horses’ diet,
nutrition and health conditions read
“Healing Horses Their Way”

Watch the Riva’s Remedies video on YouTube “Hormonal Mares and Geldings”