What is the average length of gestation in horses?

The average length of gestation in horses is approximately 340 days. This duration can vary slightly between individual mares and breeds, but 340 days is widely accepted as the typical gestation period for horses. Understanding this timeframe is critical for equine management, breeding practices, and planning for the arrival of foals.

While there are variations and some mares may give birth a bit earlier or later, the standard gestation period allows breeders and caretakers to anticipate the needs of both the mare and the foal as they prepare for birth and immediate postnatal care. This knowledge is foundational for those involved in horse breeding and can impact health monitoring, nutrition, and support during pregnancy.