Heart Murmur Mare - The Horse Forum
  • 2 Post By MyFillyAspen
  • 2 Post By Merlot
  • 1 Post By Chiilaa
LinkBack Thread Tools
post #1 of 8 Old 08-16-2013, 10:01 PM Thread Starter
Join Date: Aug 2013
Posts: 2
• Horses: 0
Heart Murmur Mare

ok btw I am new to the forum so hi all.
I just wanted to ask a few quick questions. the mares not mine but I was just interested in other peoples opinions on breeding a horse with a hear murmur? wuld you or not? why? The only reason I want to know it because I am a sticky beak and I like to learn what other people have to say as someone could have something quite useful to help find more information out.. the vets been out and apparently testing the mares murmur to find out more information but I just wanted to hear what other people would or wouldn't do...
Krystle is offline  
Sponsored Links
post #2 of 8 Old 08-17-2013, 02:54 AM
Join Date: Oct 2012
Location: South Australia
Posts: 437
• Horses: 2

I wouldn't breed a mare with a heart mumur - no heart no horse - much the same as the 'no hoof no horse' saying. I once had a puppy which was given to my mother and I as a freebie (she was going to be PTS), from a reputable breeder, because of her heart mumur (they decrease their life-span also). She was incredibly hard to rehome when we moved house - we could not take her, and she did end up having to go to a no-kill rehome shelter.

I just think it is not worth breeding any animal with a hear murmur, people can't sell them (we couldnt even give her away when we had to get rid of her), and who knows what kind of problems you could be looking at depending on the severity.

Just my opinion.
That to me, is a huge fault, and I would not want to be passing it on.
Boo Walker and Merlot like this.

Superfine Aspen
2011 Warmblood Filly
MyFillyAspen is offline  
post #3 of 8 Old 08-17-2013, 04:44 PM
Join Date: Sep 2012
Location: New Zealand
Posts: 1,323
• Horses: 4
HI Krystle, welcome to the forum
I agree with Hallys Comet - if a horse has any fault at all I wouldn't breed. There are just too many horses out there going to slaughter.
I'd love to see a day where every horse that is bred is valued as much as we value our own lives.
Of course I also believe that far too many people are breeding too but that is a whole other story
Chevaux and MyFillyAspen like this.

The Zephyr Files
Merlot is offline  
post #4 of 8 Old 08-18-2013, 04:23 PM Thread Starter
Join Date: Aug 2013
Posts: 2
• Horses: 0
thanks guys defiantly given me some really good points to out to the owners. as I don't want to see the horse suffer or potentially a foal suffer as well.
Krystle is offline  
post #5 of 8 Old 08-18-2013, 06:34 PM
Join Date: Aug 2010
Location: Perth, Western Australia
Posts: 5,153
• Horses: 0
As well as not wanting to pass it on to the foal, another thing to remember is that pregnancy is can put strain on a heart that isn't functioning at it's best. So not only is the health of the foal at risk, but so is the health of the mare.
rookie likes this.

Mods, grant me the serenity to see the opinions I cannot change, courage to change the ones that should change, and the wisdom to spot the trolls.
Chiilaa is offline  
post #6 of 8 Old 08-18-2013, 09:08 PM
Join Date: May 2012
Posts: 2,249
• Horses: 0
I would say no as well. The reason behind the heart murmur is just as important as its grade. You don't want to compromise the mare. A poodle with a heart murmur is hard enough a horse with a heart murmur is worse. As Chiilaa pointed out pregnancy increases the volume the heart has to pump which increases its work. Some estimate that cardiac volume increases by 25%.

In addition, there are no reasonable/cost effective heart medications for horses. Which means that you can not even treat the condition with what would pass as the average budget.
rookie is offline  
post #7 of 8 Old 08-21-2013, 03:32 PM
Join Date: Feb 2012
Location: Neither here nor there
Posts: 1,043
• Horses: 0
I am not sure if it is the same in horses as dogs, but in dogs some types of heart murmurs are genetic and others are not. In dogs they can do an echocardiograph to see what type of murmur a dog has to know if it is safe to breed the dog.

My dog has a mild heart murmur, which was deemed to be non-genetic. She had two litters, produced two "top 20" pups in the conformation ring in my breed, plus multiple performance titles including a MACH and a Grand Champion. None of the pups have any heart problems (out of 12 puppies). My dog is now 12 years old and in exceptional health for her age (she, herself is a champion with performance titles and she still enjoys agility). Fortunately her heart murmur has had very little impact on her leading a full and productive life. If the tests had shown her heart murmur to be caused by genetics I would not have bred her.

So if there is a way to test the cause of the murmur and it was deemed as non-genetic and the mare has excelled in other ways I would not necessarily rule her out. It also depends how severe the murmur is and whether it could possibly endanger her life.

Last edited by Tryst; 08-21-2013 at 03:35 PM.
Tryst is offline  
post #8 of 8 Old 08-21-2013, 03:46 PM
Join Date: Feb 2012
Location: Neither here nor there
Posts: 1,043
• Horses: 0
This link is interesting: Do Heart Murmurs Affect Performance? | HorseRacing.com. A study of 525 race horses found that most murmurs in them are caused by excersize and not genetic, and that it does not effect performance. So horses that raced longer were more likely to develop a murmur, but that it did not impact their performance.

Last edited by Tryst; 08-21-2013 at 03:50 PM.
Tryst is offline  

Quick Reply

Register Now

In order to be able to post messages on the The Horse Forum forums, you must first register.

Already have a Horse Forum account?
Members are allowed only one account per person at the Horse Forum, so if you've made an account here in the past you'll need to continue using that account. Please do not create a new account or you may lose access to the Horse Forum. If you need help recovering your existing account, please Contact Us. We'll be glad to help!

New to the Horse Forum?
Please choose a username you will be satisfied with using for the duration of your membership at the Horse Forum. We do not change members' usernames upon request because that would make it difficult for everyone to keep track of who is who on the forum. For that reason, please do not incorporate your horse's name into your username so that you are not stuck with a username related to a horse you may no longer have some day, or use any other username you may no longer identify with or care for in the future.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Old Thread Warning
This thread is more than 90 days old. When a thread is this old, it is often better to start a new thread rather than post to it. However, If you feel you have something of value to add to this particular thread, you can do so by checking the box below before submitting your post.

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page

Similar Threads
Thread Thread Starter Forum Replies Last Post
Foot, heart, and other issues in underweight mare manders917 Horse Health 8 05-23-2011 11:55 AM
Heart Issue - Irregular Heart Beat writer23 Horse Health 5 12-24-2010 07:20 AM
Heart Murmur CharliGirl Horse Health 4 09-18-2010 07:37 PM
"My Heart, Your Heart" - Horse Sculpture by Ron Hevener ChaseADream Horse Artwork 2 07-20-2010 06:50 AM
A little Heart-to-Heart, or lack thereof! RawhideKid Horse Talk 8 06-07-2010 08:17 PM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome