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HERDA question?

6K views 59 replies 13 participants last post by  penelopeherda 
#1 ·
The filly I'm lookin at is descended from Poco bloodlines. I was wondering if you guys think I should be concerned? Here's her pedigree:
http://www.allbreedpedigree.com/stamped+with+style
Should I be concerned or do you think i'll be okay?
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#3 ·
If she shows no signs of being affected by the disease. And you don't plan on breeding her, I see no problems.

If you are going to breed her later on, I would have a tested or ask if the owner has tested her to see if she is a carrier.
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#5 ·
Well.. I'd still get her tested. HERDA, doesnt always show when their foals. It can happen when she gets older. I'd test her. This from the UC Davis Vet Med. " The condition typically occurs by the age of two, most notably when the horse is first being broke to saddle"
 
#7 ·
My soon-to-be foal's great great great great grandsire is Poco Bueno, and my breeder is testing her mare for the disease. She's definitely not afflicted, but she could still be a carrier. Whenever I found out about HERDA, I contacted my breeder right away to see if the dam had been tested yet.
 
#8 ·
It's not uncommon for a Herda afflicted horse to not show any signs of the disease until it is started under saddle. There are signs you can see on a younger horse but you've got to know what you're looking for as they can be very subtle. She only has PB on one side of her pedigree so worst case, she can only be a carrier and she will never have any complications from the disease.
 
#19 ·
Someone had said she only had PB on one side of her pedigree so I went with it because it just depends in the persons meaning. She was PB up until a certain point - she is an appendix Quarter horse tho
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It's a common misconception that only full quarter horses are afflicted or are carriers of this disease. If PB is anywhere in the pedigree, even 20 generations back, the horse could potentially be a carrier and if he's on both sides you double your chances and the horse could be afflicted as well. This mare is appendix but she still has QH both top and bottom. (unlike an appendix that has one full TB parent). Both QH trees go back to PB so genetically, she could either be a carrier or afflicted. We have carriers and are producing afflicted horses in every breed that incorporated QH blood. Paints, Appies, spotted drafts, the color breeds (ABRA, palomino, pinto...), grades...

I still don't grasp what you're trying to explain with the "Poco blood does not come from PB" but trust me, anytime you see "Poco" in a AQHA pedigree, it will always go back to Poco Bueno.
 
#18 ·
If you question it at all, always test, not only have the owner's test. You should have her tested as well BEFORE making any commitment to her. HERDA can stay hidden in young horses with no symptoms. It will usually surface when they are started to saddle and will just progress from there. Once diagnosed with HERDA you'll probably have to have her PTS and if she is a carrier she's not suitable for breeding.
 
#25 ·
Well, while you are partially correct.. not fully.

With appropriate testing to other tested individuals, a carrier can be a breeding animal and contribute a lot to the gene pool.

you just have to be responsible and test your breeding stock before hand. A carrier will not have any symptoms of the disease, nor be affected in any way by it, so there is no reason to not use them or to put them to sleep.

now if you are an irresponsible breeder that isn't testing your breeding stock, then no you probably shouldn't breed a mare with HERDA (or anything more than dust bunnies).
 
#24 ·
Someone had said she would be okay because she was not PB. I was pointing out she's not PB, however she does have PB in her bloodlines
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So I now understand what you're saying and this statement couldn't be farther from the truth. This filly's pedigree traces to PB (Poco Bueno since I'm talking about Herda) on the sire's side through Poco Dell and on the dam's side through Sonny's Champ. Doesn't matter what, where and how much TB is mixed in.

We might be beating a dead horse on this but I want anyone who might come across this looking up information on Herda to know how important it is to look at the extended pedigree when dealing with this disease. PB died almost 45 years ago so you're not going to see his name on a normal registration pedigree.
 
#27 ·
Okay guys, so, I'm really concerned. I absolutely LOVE this filly and think she's EXACTLY what I'm lookin for - but now I think it's time I yield to your guys advice. I asked the breeder if she had been tested, and she replied: "No, I haven't ever done that on any of my horses.* None of them are*from 'Impressive's' bloodlines, so I doubt there is any problem with that genetic problem." So, should I continue lookin into this filly or move on? Her temperment is perfect for me and she's everything I want
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#28 ·
Pass. It's a buyers market right now. There is very little need to settle. And you can hopefully help support a breeder who is responsible and ethical. No Impressive.. good lord. You have met one of those breeders I referred to above.. the kind that should not be allowed to breed dust bunnies.
 
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