Hello, I have a 9yr old maiden mare who I'm planning on breeding this season. I've opted to go with live covering, mainly because I don't want the fuss involved with shipped semen, and the stud of choice is 20min away. Now, I've only seen this mare in heat once in the last 3 years and that's only because I had been riding her to work every day and she was pastured with a very dominant mare there. I have no access to any teasers around here, and the neighbors no longer have their 'studdy' mare. Any suggestions on how to catch her cycle? She has to be cultured, coggins etc. still but of course she has to be in season for the culture! Is it an option to give her Lutalyse to induce a heat? Any other suggestions? Thanks in advance.
Posted on Sunday, May 13, 2001 - 09:34 pm:
Prostaglandin (Lutalyse) will only work if given at the correct stage of her cycle. You require an active Corpus Luteum in order for it to work. If you give 2 shots of prostaglandin 14 days apart, the mare should cycle 3 to 5 days after the second shot, even if the first shot misses (it may work, but you won't know if she doesn't display).
An alternative would be to take her up to the stallion's farm and let her be teased and have the vet work done there. If the stallion farm requires the Coggins prior to the mare going there, perhaps they can ultrasound the mare when they draw the blood for the Coggins and get an idea of what stage she's at.
Make sure that a cytology smear is prepared from the uterine swab and read at the same time the the culture is run. A culture alone is not a reliable indicator of uterine pathogenic status.
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