By: A Shot Against Estrus? – America’s Horse Daily
[...] Mares come into heat or estrus due to rising estrogen levels produced by developing ovarian follicles. Mares typically do not show heat during the winter when they have small, inactive ovaries....
View ArticleBy: Kick the Habit – America’s Horse Daily
[...] once had two mares who didn’t have bad manners in general, but when they’d see me come into the barn to get their [...]
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