Here's why:
* Hormonal Changes: Pregnancy hormones can cause changes in hair growth patterns. Some horses may experience a slightly thicker coat or even develop a "pregnancy patch" - a patch of thicker hair on their flanks or belly.
* Increased Metabolism: A pregnant mare's metabolism is higher to support the growing foal, which can influence hair growth.
However, there are a few exceptions:
* Shedding Season: Like all horses, pregnant mares will still shed their winter coat in the spring and grow a new summer coat in the fall.
* Stress or Illness: If a mare is experiencing stress or illness, she may lose hair, but this is not directly related to pregnancy.
It's important to note that:
* Hair loss can be a sign of various health issues in horses. If you notice significant hair loss in your pregnant mare, it's essential to consult with a veterinarian to rule out any underlying problems.
* Pregnancy is a time of increased nutrient needs for the mare. Providing a well-balanced diet can help maintain her health and contribute to healthy hair growth.
If you have any concerns about your mare's hair during pregnancy, it's always best to consult with a veterinarian for personalized advice.