Regulating Estrus in Mares

Having mares come into estrus at regular intervals can be an important assist in maintaining his fertility.
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When a mare is left to her own devices reproductively, she will fall into a rhythm with Nature. When the days are short, dark, and cold, her reproductive system will shut down. When the longer, warmer days of spring arrive, her reproductive system will begin to stir and within weeks will be ready for procreation.

Exercise and diet are important in increasing a mare’s chances of getting in foal.

Photo: Barbara D

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Les Sellnow was a prolific freelance writer based near Riverton, Wyoming. He specialized in articles on equine research, and operated a ranch where he raised horses and livestock. He authored several fiction and nonfiction books, including Understanding Equine Lameness and Understanding The Young Horse. He died in 2023.

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