• Welcome to the Chronicle Forums.
    Please complete your profile. The forums and the rest of www.chronofhorse.com has single sign-in, so your log in information for one will automatically work for the other. Disclaimer: The opinions expressed here are the views of the individual and do not necessarily reflect the views and opinions of The Chronicle of the Horse.



Forum rules and no-advertising policy

As a participant on this forum, it is your responsibility to know and follow our rules. Please read this message in its entirety.

Board Rules

1. You’re responsible for what you say.
As outlined in Section 230 of the Communications Decency Act, The Chronicle of the Horse and its affiliates, as well Jelsoft Enterprises Ltd., the developers of vBulletin, are not legally responsible for statements made in the forums.

This is a public forum viewed by a wide spectrum of people, so please be mindful of what you say and who might be reading it—details of personal disputes are likely better handled privately. While posters are legally responsible for their statements, the moderators may in their discretion remove or edit posts that violate these rules. Users have the ability to modify or delete their own messages after posting, but administrators generally will not delete posts, threads or accounts upon request.

Outright inflammatory, vulgar, harassing, malicious or otherwise inappropriate statements and criminal charges unsubstantiated by a reputable news source or legal documentation will not be tolerated and will be dealt with at the discretion of the moderators.

2. Conversations in horse-related forums should be horse-related.
The forums are a wonderful source of information and support for members of the horse community. While it’s understandably tempting to share information or search for input on other topics upon which members might have a similar level of knowledge, members must maintain the focus on horses.

3. Keep conversations productive, on topic and civil.
Discussion and disagreement are inevitable and encouraged; personal insults, diatribes and sniping comments are unproductive and unacceptable. Whether a subject is light-hearted or serious, keep posts focused on the current topic and of general interest to other participants of that thread. Utilize the private message feature or personal email where appropriate to address side topics or personal issues not related to the topic at large.

4. No advertising in the discussion forums.
Posts in the discussion forums directly or indirectly advertising horses, jobs, items or services for sale or wanted will be removed at the discretion of the moderators. Use of the private messaging feature or email addresses obtained through users’ profiles for unsolicited advertising is not permitted.

Company representatives may participate in discussions and answer questions about their products or services, or suggest their products on recent threads if they fulfill the criteria of a query. False "testimonials" provided by company affiliates posing as general consumers are not appropriate, and self-promotion of sales, ad campaigns, etc. through the discussion forums is not allowed.

Paid advertising is available on our classifieds site and through the purchase of banner ads. The tightly monitored Giveaways forum permits free listings of genuinely free horses and items available or wanted (on a limited basis). Items offered for trade are not allowed.

Advertising Policy Specifics
When in doubt of whether something you want to post constitutes advertising, please contact a moderator privately in advance for further clarification. Refer to the following points for general guidelines:

Horses – Only general discussion about the buying, leasing, selling and pricing of horses is permitted. If the post contains, or links to, the type of specific information typically found in a sales or wanted ad, and it’s related to a horse for sale, regardless of who’s selling it, it doesn’t belong in the discussion forums.

Stallions – Board members may ask for suggestions on breeding stallion recommendations. Stallion owners may reply to such queries by suggesting their own stallions, only if their horse fits the specific criteria of the original poster. Excessive promotion of a stallion by its owner or related parties is not permitted and will be addressed at the discretion of the moderators.

Services – Members may use the forums to ask for general recommendations of trainers, barns, shippers, farriers, etc., and other members may answer those requests by suggesting themselves or their company, if their services fulfill the specific criteria of the original post. Members may not solicit other members for business if it is not in response to a direct, genuine query.

Products – While members may ask for general opinions and suggestions on equipment, trailers, trucks, etc., they may not list the specific attributes for which they are in the market, as such posts serve as wanted ads.

Event Announcements – Members may post one notification of an upcoming event that may be of interest to fellow members, if the original poster does not benefit financially from the event. Such threads may not be “bumped” excessively. Premium members may post their own notices in the Event Announcements forum.

Charities/Rescues – Announcements for charitable or fundraising events can only be made for 501(c)(3) tax-exempt organizations. Special exceptions may be made, at the moderators’ discretion and direction, for board-related events or fundraising activities in extraordinary circumstances.

Occasional posts regarding horses available for adoption through IRS-registered horse rescue or placement programs are permitted in the appropriate forums, but these threads may be limited at the discretion of the moderators. Individuals may not advertise or make announcements for horses in need of rescue, placement or adoption unless the horse is available through a recognized rescue or placement agency or government-run entity or the thread fits the criteria for and is located in the Giveaways forum.

5. Do not post copyrighted photographs unless you have purchased that photo and have permission to do so.

6. Respect other members.
As members are often passionate about their beliefs and intentions can easily be misinterpreted in this type of environment, try to explore or resolve the inevitable disagreements that arise in the course of threads calmly and rationally.

If you see a post that you feel violates the rules of the board, please click the “alert” button (exclamation point inside of a triangle) in the bottom left corner of the post, which will alert ONLY the moderators to the post in question. They will then take whatever action, or no action, as deemed appropriate for the situation at their discretion. Do not air grievances regarding other posters or the moderators in the discussion forums.

Please be advised that adding another user to your “Ignore” list via your User Control Panel can be a useful tactic, which blocks posts and private messages by members whose commentary you’d rather avoid reading.

7. We have the right to reproduce statements made in the forums.
The Chronicle of the Horse may copy, quote, link to or otherwise reproduce posts, or portions of posts, in print or online for advertising or editorial purposes, if attributed to their original authors, and by posting in this forum, you hereby grant to The Chronicle of the Horse a perpetual, non-exclusive license under copyright and other rights, to do so.

8. We reserve the right to enforce and amend the rules.
The moderators may delete, edit, move or close any post or thread at any time, or refrain from doing any of the foregoing, in their discretion, and may suspend or revoke a user’s membership privileges at any time to maintain adherence to the rules and the general spirit of the forum. These rules may be amended at any time to address the current needs of the board.

Please see our full Terms of Service and Privacy Policy for more information.

Thanks for being a part of the COTH forums!

(Revised 1/26/16)
See more
See less

Spaying Mare?

  • Filter
  • Time
  • Show
Clear All
new posts

  • Spaying Mare?

    Hi all,

    I have a question...

    Recently a fellow boarder has or was having problems with her mare. The mare ended up getting put on Regumate. But the woman also asked the vet about spaying?

    He said that he thought spaying was too risky because some mares end up permanently in heat/ always exhibiting the poor behaviors they experience when in heat?

    Can anyone tell me more about this?

    All I was able to find on the matter is this:

    "Another unusual phenomenon in the mare should be understood clearly as you consider spaying a mare in an attempt to affect behavior. In most species other than horses, low progesterone and high estrogen are required to induce estrous behavior in the female. In those species, removal of the ovaries removes estrogen, and there is no estrous behavior. In the mare, however, all that is needed for display of estrous behavior is low progesterone. The addition of estrogen usually intensifies estrus, but it is not always needed.

    Therefore, the spayed mare which has no progesterone typically can show estrus, at least at a low level, at any time. So if the mare's performance problems truly have been associated with estrus, spaying might make matters worse. If the mare's problem behavior was associated with diestrus and she was much better during estrus, then spaying could help. If the mare's behavior was better when the ovaries were inactive during winter, then this mare would more likely be a good candidate for ovariectomy (spaying)."
    Can anyone tell me more about this?
    Equestrian At Hart - A blog about adventures in bringing along a young TB mare and a 2016 Big Star filly

  • #2
    You may not have gotten any responses because in general its not done in horses. From what I hear its an costly procedure and doesn't always help hormonally, depending on what is done. It may prevent preganancy
    My warmbloods have actually drunk mulled wine in the past. Not today though. A drunk warmblood is a surly warmblood. - WildandWickedWarmbloods


    • #3
      I remember being told by a vet who specialized in breeding and stood stallions for many clients that he used a spayed mare as the 'jump mare' to encourage stallions to use the mount/av for collections. He said something about her always displaying signs of heat. I thought that it was something odd about that particular mare but maybe it is more common that that?


      • #4
        If Regumate is working, then perhaps the owner should investigate the weekly injectible hormones. It's made by prescription by a compounding pharmacy and administered IM.

        Spaying is expensive and difficult. Personally I would learn to manage the mare better when she is cycling.
        Where Fjeral Norwegian Fjords Rule


        • Original Poster

          Originally posted by Ambitious Kate View Post
          You may not have gotten any responses because in general its not done in horses. From what I hear its an costly procedure and doesn't always help hormonally, depending on what is done. It may prevent preganancy
          Thanks. I know that it is not super common but was just curious about it in general.

          Originally posted by ChelseaR View Post
          I remember being told by a vet who specialized in breeding and stood stallions for many clients that he used a spayed mare as the 'jump mare' to encourage stallions to use the mount/av for collections. He said something about her always displaying signs of heat. I thought that it was something odd about that particular mare but maybe it is more common that that?
          I have also heard of that... I am not sure how common that is though...

          Originally posted by IronwoodFarm View Post
          If Regumate is working, then perhaps the owner should investigate the weekly injectible hormones. It's made by prescription by a compounding pharmacy and administered IM.

          Spaying is expensive and difficult. Personally I would learn to manage the mare better when she is cycling.
          I only posted this out of my personal curiosity not for suggestions for this mare in particular. Thank you for the info though.
          Equestrian At Hart - A blog about adventures in bringing along a young TB mare and a 2016 Big Star filly


          • #6
            I spayed my mare over three years ago and she has not stayed in constant heat. The only few times I have seen her exhibit any normal mare in heat behavior is when she meets certain new horses. Then she has a few moments of squealing and all that fun stuff, but gets over it and goes about her business.

            Spayed mares do make great "teaser" mares like ChelseaR said for breeding farms. When I worked as a tech at TN's vet school we spayed one or two mare for this reason.

            The surgery itself is a lot more safe now that the common way is done with a laproscopic flank incision. Which has also brought the price down somewhat. It is definetly not for everyone and every mare. But it is a good option for those of us who had mares who experienced extreme pain and sensitivity during their cycles. I do not regret choosing to spay my mare and I can see she leads a happier life now for it.

            Hope that sorta kinda answered your questions~!
            Free and Forward Motion through Massage Therapy


            • #7
              I copied this from a previous thread about a mare I used to own:

              I had a mare that I spayed but it was for pain issues, not behavior...although while she was in pain, she wasn't too nice to be around, especially if you were another horse.

              Short history...5y.o.mare that I owned since she was 15 months old. Uncomplicated to start but in her 5y.o. year, she started getting a bit resistant to the leg. This behavior accelerated through the summer until she was balking, kicking out at the leg with uber tension and generally not happy. By August it finally clicked that this was happening every 3 weeks...duh. When she went out of heat, it was like a switch was turned and my sweet mare was back. About this time, she also started wanting to savage her pasture mate during her painful episodes. Twice I found him with blood and bites to his chest where she reached through the fence and grabbed him (afterall...her pain was all his fault as far as she was concerned.

              I had her examined and she had a larger ovary but she was still cycling. When I had her re-checked in December, the ovary was now about 3x the size of the other. I wasn't interested in breeding so I had her spayed and both ovaries removed. The large one was infiltrated with a benign solid tumor. The surgery totally cured the under saddle issues. She did however still "act" like she in heat pretty much right at the normal interval..she just wasn't in pain.

              She did not display heat all the time either. I found it similar to what dressagevettech said. Heck this was about 20-25 years ago. General anesthesia and 3 days at the vet and pathology on the ovaries--$435! Even then I kept asking them if they were sure that was the right amount. They said yes, I hurriedly
              wrote the check, loaded up my horse and was out of there.

              Today, there are much easier techniques especially if you have someone that can do it laparoscopically. I'm sure the price is much higher than my mare's spay but in the long run,
              it might be cheaper than constant hormonal treatment.



              • #8
                I spayed my mare after progesterone stopped working and she became dangerous. 17.2 hands of agressive mare is not fun.

                Yes, some mares will display signs of being in heat afterwards. Freaky but uncommon. She didn't.
                Her procedure was done vaginally. Had a week off of work, that was it.
                If the ovaries are very large, the surgery is done thru a flank incision, standing. Laying a mare down to do the surgery like one thinks of spaying a dog or cat makes it impossible to reach the ovaries so they have to be done standing.
                Ovaries are all that are removed, not the uterus. So not a "spay" like we think of in dogs/cats.

                Would I do it again? In a minute!! Wish I had done it sooner.

                Cost? This was prob 6 yrs ago and it was about $400 or 500 if I remember right.


                • #9
                  My trainer had one of his race mare's overies removed during the winter. She was such a sour and sore girl until the removal. She had a week of walking on the walker, then two weeks of jogging in the equisizer and then back into light gallops for another two weeks and now whe is not sore and her tude has really improved.


                  • #10
                    I am just preparing my mare to go into surgery to have this done. She is 6, and we have not consistently been able to move forward in her training process, she is a rearer and very sensitive to the leg, almsot refuses to accept contact and track up, she wants the reins looped and no leg. She is a wonderful mare on the ground, not "mareish" (ie cranky, bossy, etc), always has her ears forward, but very "showy" to both mares and geldings... and recently, to people. She has the intention to have a great work ethic, but there is ovbiously something going on that is distracting and making her uncomfortable. We have had her seen by a chiropractor several times, had a saddle fitter check our saddle, and my vet sees no obvious soundness issues.

                    We had her to our regional vet college for assesment about a year and a half ago, in December, and at that time one of her ovaries was about 3x larger than her other. Odd, but vet did not think it was causing her pain. We tried Regumate, which actually caused an allergic reaction. Did not try Depo shots, as we then changed her diet (took her off grain and upped her Selenium/Vit E intake) and it seemed to help.

                    The issue has now resurfaced, she is currently at my trainers farm, and she is working with her daily. Trainers mother is our vet, so she has also been able to monitor her and handle her on a daily basis, and on both of their suggestions, we have decided to move forward with this procedure. We did talk about having a marble implanted firsthand, but the cost of the marble is almost 1/3 of what we have been quoted for the ovariectomy, and at least it will be a one time deal! We do not plan to breed her EVER, as this behaviour is likely to show up in her offspring, as we know her sibling who shows similar (yet slightly milder) issues.

                    The reproductive vet who saw her before seemed to think that she would be a good canditate for the loop ligature method (I think thats what its called), which also seems to be the least invasive, cheapest, and quickest recovery.

                    I am excited to see the results - at this point we have nothing to loose, and my vet as well as the repro vet both seem optimistic that this will yield us a "new" horse.


                    • #11
                      6 years ago a friend had his mare spayed at KState and cost $1200. The procedure was a life saver for his mare! He highly recommends it for problematic mares.


                      • #12
                        My mare had a vaginal ovariectomy in 2009. I did time it so it was done after ovulation so that there was no retaining follicles. Mare had a history of retaining follicles that created pain, reason she was spayed.

                        It took my mare one year to get over that it doesn't hurt anymore mentally. Physically within a month she had changed.

                        It was the best money I ever spent, and if I ever get another mare that has issues, I will not hesitate to have her spayed.


                        • #13
                          See my post on this thread:

                          All removing the ovaries does is remove the presence of progesterone which is what suppresses the estrus. Ovaries produce some estrogen, but estrogen is present elsewhere in the equine tissues. As well, the brain is involved in the mare's estrus cycle.

                          Long and short, when a mare ovulates, the CL is formed on the ovary which produces progesterone which suppresses estrus buying time for maternal recognition of an embryo within the uterus. Thus removing the ovaries does not stop the other hormones floating around the blood stream encouraging estrus.....but having no ovaries + no CL producing progesterone = no suppression of the estrus.

                          It's only a good idea to ovariectomize a mare if she has tumors on the ovaries which most times will cause wild and crazy hormone fluctuations and which in turn can cause extremely erratic and sometimes dangerous behavior.

                          Otherwise, it is better to just manage the mare better.

                          FWIW, some mares will go into estrus despite Regumate. At recognized shows, Regumate is a banned substance.

                          However, if the mare is not in danger of being tested at shows and is just used for pleasure, regumate is still your best option for mitigating severe symptoms of heat and it can be administered via the grain. A woman MUST WEAR GLOVES when handling Regumate - it is an oil-base and absorbs readily through the skin and WILL IMPACT YOUR OWN MENSTRUAL CYCLE. Humans tend to have more serious side effects to hormones than mares do - all of the warnings to humans about blood clots and the like on birth control pills apply.
                          Practice! Patience! Persistence!