http://americashorsedaily.com/mare-hunt/ The Complete Source for All Things Horse Sat, 11 Feb 2012 21:00:01 +0000 http://wordpress.org/?v=2.9.2 hourly 1 http://americashorsedaily.com/mare-hunt/comment-page-1/#comment-11547 Kick the Habit – America’s Horse Daily Tue, 01 Mar 2011 10:02:18 +0000 http://americashorsedaily.com/?p=4979#comment-11547 [...] 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 [...] [...] 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 [...]

]]> http://americashorsedaily.com/mare-hunt/comment-page-1/#comment-8467 A Shot Against Estrus? – America’s Horse Daily Sat, 28 Aug 2010 18:53:27 +0000 http://americashorsedaily.com/?p=4979#comment-8467 [...] 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. Heat is also not exhibited after ovulation when mares have a corpus luteum producing progesterone. Ultimately, expression of behavioral estrus occurs in the presence of estrogen and the absence of progesterone. Absence of estrus is a function of low estrogen levels and/or elevated progesterone levels. [...] [...] 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. Heat is also not exhibited after ovulation when mares have a corpus luteum producing progesterone. Ultimately, expression of behavioral estrus occurs in the presence of estrogen and the absence of progesterone. Absence of estrus is a function of low estrogen levels and/or elevated progesterone levels. [...]

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