How common is ASD in Rocky Mountain Horses, KMPH, and KMSH?

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How common is ASD in Rocky Mountain Horses, KMPH, and KMSH?

This is a discussion on How common is ASD in Rocky Mountain Horses, KMPH, and KMSH? within the Horse Health forums, part of the Keeping and Caring for Horses category
  • Rocky mountain horse names
  • Silver dapple paint horses

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  • 1 Post By walkinthewalk
  • 3 Post By Macslady
  • 2 Post By Bellasmom
  • 2 Post By walkinthewalk

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    02-27-2013, 09:50 PM
Question How common is ASD in Rocky Mountain Horses, KMPH, and KMSH?

I've been interested in getting a RMH for a long time now, but I still have to wait a while. So I thought about doing some research of my own. And I wanted to ask how common ASD is among these particular breeds. I did have an issue of Horse Illustrated regarding the RMH, but i've miss placed it, and it had some very good info about the genetic condition. (go figure right)
How are your horses coping with this genetic condition?
Is it only associated with the chocolate/flaxen coat?
And if any one can explain why only that particular coat combo?
Is it fairly common in the breed of today compared to those past?
What is the average age it seems to begin to effect them?
How did the genetic condition come about?
Is there any sort of treatment for this condition?
Is there any way of preventing it, and still getting the color combo?

Sorry for the 20 questions, but i'm fascinated to learn about this since i'm hopefully purchasing one in the future.
Thank you!
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    02-28-2013, 08:06 AM
Green Broke
This is a credible .edu website that might help answer your 20 Questions

I don't have Rockys but, to the best of my knowlege, the disease is only supposed to be evident in Rockys carrying the gene for the Chocolate color.

My friend has a beautiful Buckskin Rocky. I think he's around eleven by now and has never displayed ASD.
Lockwood likes this.
    02-28-2013, 08:09 AM
There are several studies on it. It is not only in the Rocky breed. It was when many started breeding for chocolates by breeding chocolate to chocolate. Good breeders do not do that anymore. Horses are tested genetically to see what genes the sire and dam carry and breed for the quality of temperament and less for the color now. The ASD comes from an allele that attaches to the silver dapple gene. Black horses do not have the gene. Silver dapple in order to create chocolate works best with crossing the right genetics of say a black horse and a chocolate. The bay is the horse that when the silver dapple gene is crossed creates the red chocolate. Many horses that have mild cases of ASD lead fully normal lives with good vision. Any vet can check the eyes for ASD so you are very well protected if you have a prepurchase exam done. Most breeders are upfront and will tell you if there horse has it. And I know a couple of the breeder websites actually link you to some of the studies so you can read up on it.

My best recommendation is to make sure you go to a good reputable breeder that makes their living raising and showing their horses. They are the ones that their lives depend upon the animals they produce. You can't sell junk and continue to operate a top horse facility. And plan on spending at least $5K if you want a great rider that has all the training you want.

I would plan on taking a week when you finally decide to buy during RMH and KMSHA shows and spend that time talking with the people at shows in KY. They have a wealth of information and once you decide what you want in a horse they will lead you to the breeder that will have the horse you are looking for. Just talk to Hag On Nag here in this area of the forum, or read her story on her hunt for a horse. Thinking about this TWH... You will see it took her a while, but she found her BFF horse from a breeder in KY just from talking to them and meeting with the show people. These are some of the kindest people I have ever met and are really there for the love of the horse.

Good luck in your search.
    02-28-2013, 08:31 AM
Super Moderator
My buckskin boy came from KY too. :)
Although the price was lower, it took me a little while to find what I was looking for as well.
    02-28-2013, 08:32 AM
I will agree with Macslady that a PPE will protect you, just be sure the vet does an eye exam and is familiar with the condition. ASD is present at birth (improper development of portions of the eye in utero) and in the majority of cases it is NOT progressive. If you are looking at an adult horse with no eye abnormalities, you are in the clear. I will disagree in terms of price point.....there are alot of nice RMH going for cheap these days. I have friends that picked up a green broke 3 yo gelding for $125 and a weanlings filly for $75 at a dispersal sale. I see nice trail broke horses regularly for $1500-3000 on a gaited horse forum I frequent.
Lockwood and Elizabeth Bowers like this.
    02-28-2013, 09:01 AM
Thank you everyone. And I know it's going to take me a while to find my 'perfect' horse. I'll have to ask my mom if she wants to take a road trip down to KY for a visit and 'window shopping'. She used to take yearly trips to TN, I think it's due LOL. If not I have a few horse friends who have been going to KY for the big horse events coming in May I believe. I'll be doing all the research I possibly can on the breed. I did have somewhat of a report written a few years back...and as usual in the move it disappeared. I've been hearing KY is where you get the best horses. I've never been to KY, and it's been a on the back burner kind of dream to go one day, and watch all the horsie events!! I was following that thread for a while, and I just got lost in a few others in the process.
I knew it occurred in the X of C to C, but I didn't know if it would be transferred to X of C to Cn(chestnut) or any other colors.
I will definitely check out the link, it sounds like a good read.
    02-28-2013, 09:33 AM
Green Broke
What wonderful information from everyone!

Originally Posted by Lockwood    
My buckskin boy came from KY too. :)
Although the price was lower, it took me a little while to find what I was looking for as well.
My friend bought her Buckskin Rocky (mentioned above) from a breeder in KY, somewhere east of Bowling Green is all I know
Lockwood and Elizabeth Bowers like this.
    02-28-2013, 09:35 AM
Ok on another note, since it is so closely attached to the 'silver dapple' gene would it effect a wild horse? I've seen pics of the Sand Wash basin horses, and one stallion in particular threw 'silver dapple' colts, i've only seen it on his colts. I have few pics but they are not mine, so I will not post them. And what about this term called 'silver bay' is it another form of 'silver dapple'?
    02-28-2013, 11:28 AM
Originally Posted by Macslady    
And I know a couple of the breeder websites actually link you to some of the studies so you can read up on it.

Good luck in your search.
I would love it!! Thank you!
    02-28-2013, 11:42 AM
Wild silver dapples

Here are a few pics of wild horses with the silver dapple gene, i'm curious to see if crossed with another silver dapple if it would still throw the possibility of ASD?
Majesty, the stallion who threw the silver dapple gene (RIP May 2012)
Majesty 2.jpg
2 of his colts the solid Juniper, the paint Meistro?
boys at play.jpg
silver dapple colt.jpg
silver dapple paint.jpg
Both are young stallions.

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