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  Crazy Chicken Chick
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| And thanks so much for all the info!!! | |
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 Hog Tie My Mojo
Posts: 4847
       Location: Opelousas, LA | appycowgirl - 2013-07-07 12:30 PM When people are asking about bloodlines in the barrel horses, we just aren't quite sure as we don't have a ton of positive pedigrees to try to figure out possible sources. I have my suspicions of some lines like the mare FL Lady Bug an I have suspected Moon Deck. I'm not sure how many people are familiar with the mare Ms Wahini Bug? She, herself is positive for PSSM and has 3 foals out there that I know of, Ms Shoo Bug, Ms Perky Bug and Wahini Cash that are positive for PSSM. This mare goes back onto those lines that I suspect. Then, I also know of 2 positive horses from the stallion AR Star and he also goes back onto that Moon Deck and FL Lady Bug line and then on the PSSM Forum we had another barrel horse reported as positive and it was through his sire as the dam tested negative and that sire goes back on Moon Deck. The University of MN did pedigree research and listed the initials of EC, SDB and PI. We believe the EC to be Eddie Cinco, the SDB to be Sonny Dee Bar and PI to be Pretty Impressive. With the positive pedigrees that we have on the Forum, which is over 250, these names have definitely shown up in many of the positives when it comes to QHs, Paints and Apps. Now, in the Apps, the stallion Dreamfinder is a major suspect as we have numerous sons and daughters and ancestors of his that are coming up positive. Now, for Dreamfinder, he goes back on a stallion named Roan Hancock who is appearing in numerous positive pedigrees and seems to be the main player in the foundation QHs that are turning up positive. Personally, I do not suspect Joe Hancock himself as there are several other horses with him in their pedigree that are NOT coming up positive, so we suspect that the PSSM probably came through on his dam. Now, with mentioning Roan Hancock, we have had numerous positives show up that have Two Eyed Jack in their pedigree. I will say that both the Pitzer Ranch manager's wife along with other numerous TEJ owners do not believe that he is not the PSSM problem and they think it is the mares instead that he was bred to. Now, there was a lady who did talk to the ranch manager's wife and she did state that they were breeding P1/P1 mares to their studs that are n/P1 and they do list those positive studs on their website and have listed them in their catalouges. I highly commend Pitzer Ranch for being open and honest on their stud's statuses. Back here about a month or so ago, I had a lady who shared with me a 199 page dissertation that was written by Dr. Molly McCue and on page 77 it states that most of their PSSM1 positive horses in the research herd, went back onto the stallion WRD and he went back to YJ. Now, we believe that WRD stands for Waggoners Rainy Day and of course he goes back on Yellow Jacket. Back about a year or so ago, several of the folks on the PSSM Forum, who have been studying these positive pedigrees came out with the thoughts that most of this is coming from three horses, which of course has been mentioned before from the researchers. Those 3 horses are Yellow Jacket, Yellow Wolf and Midnight and all 3 of these horses goes back on the mare Mittie Stephens. Lately, we have started to have positive pedigrees that have been reported that don't have SDB, PI, EC or even Roan Hancock, but they definitely have one or two or even all 3 of those three suspects that many people on the Forum feel are sources. The main thing in all of this is that every time we look at any of these pedigrees prior to them being tested, we can see where there is a chance for the horse to test out positive, so the biggest thing is to get people educated about PSSM and to get folks to request testing before purchasing or breeding to someone's stud and to test their mares as well. Right now, the researchers state that anywhere between 6 to 12% of the QH and QH related breeds are positive for PSSM and out of that, anywhere between 90 to 75% are positive for PSSM Type 1 and the other 10 to 25% are positive for Type 2. So, it is just best to DNA test and know and if you are having problems with your horse and it does come back negative for Type 1, have your vet do a blood panel and have them specifically test the CK and AST levels. If those are elevated, your next step would be to do a muscle biopsy to check for Type 2. Wow! Thank you so much for this information!
My current mare has a horse in her pedigree named Beetchs Yellow Jacket that is by Yellow Wolf out of a Yellow Jacket mare, BYJ goes back to Mittie Stephens three times. There is also a mare on her sires side that goes back to Midnight three times. I am guessing if this is a dominant trait then it would not be diluted even if it was several generations back?
Also, I had a wicked awesome mare years ago that I know had to have PSSM in some form or another. She was out of a daughter of BA in 75 so the FL Lady Bug / Moon Deck connection doesn't suprise me at all. This mare never had any tying up issues until after colic surgery when the vet had me take her off all grass hay, and put her on alfalfa and had me keep her turned out (on grass) as much as possible. Back then every one just told me to put her on E-Se which did not help at all without the diet changes. This mare would run and place in rodeos and derbies then lock down so bad I couldn't get her back to the trailer. She also started bleeding which I believe had everything to do with the anxiety caused from her muscle pain. I had an excellent massage therapist that this mare would try to kill if she attempted to work on her. Good gosh, what I wouldn't give to know then what I know now!
I also have a question about the testing for PSSM. If you have the muscle biopsy done after the symptoms are controlled through diet and exercise, will it skew the test since they look at how much glycogen is stored in the muscle? Say for instance if Annemareas horse was on grass and sweetfeed, would the muscle biopsy still show the horse to be moderately affected? Also, if you pull blood on a horse that is not tying up and being maintained with proper diet and exercise, will they still have high CK and AST levels?
Edited by Barnmom 2013-07-07 4:04 PM
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  Crazy Chicken Chick
Posts: 36132
         
| This may not help answer your question, but the biopsy procedure for MH (at least in people) is that one piece of muscle is placed on a strain gauge, and flooded with halothane, one is flooded with caffeine and the other with both halothane and caffeine. Just as an example, my biopsy for MH was positive on all three.
I have no idea if the biopsy for PSSM is done the same way, but bet it is similar as MH and PSSM are related diagnoses. | |
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 "Drank the Kool Aid"
Posts: 5496
        Location: Iowa, LA | Barnmom,Β I asked the exact same question since I had been keeping them dry lotted. The vet at LSU could not answer it and my email to the University went unanswered. Not sure what the answer is!
I can try to send another email asking the lady that mailed my results to me and see if I get a response.
Oh and as far as the blood, those levels will definitely go down with proper management because some people are using that as a reference point to see if the diet is working well enough or needs tweeking.
Edited by annemarea 2013-07-07 4:09 PM
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  Champ
Posts: 19623
       Location: Peg-Leg Julia Grimm | Thanks for all the information. Great thread! | |
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 Hog Tie My Mojo
Posts: 4847
       Location: Opelousas, LA | annemarea - 2013-07-07 4:06 PM Barnmom,
I asked the exact same question since I had been keeping them dry lotted. The vet at LSU could not answer it and my email to the University went unanswered. Not sure what the answer is!
I can try to send another email asking the lady that mailed my results to me and see if I get a response.
Thanks!
I am going to at least have my mare tested for PSSM1, from her pedigree it sure looks like she may be positive for it. Take a look at Slash J Harletta on allbreed, that mare goes back to Mittie Stephens about six times. Not trying to pick on that mare (SJH) since she is one of the best producers in this industry but certainly something to keep in mind.
Thanks so much for this post! I knew there was something going on with my mare and she is way too nice to give up on. Maybe if I can get her feed program right she will quit trying to randomly launch me out of the saddle. Just switching her from a COB mix to Ultium has made a huge change. I may have to suck it up and drylot her as much as I hate to. Probably need to look for sugar free cookies too, she would hate me if she didn't get her cookies, LOL.
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 "Drank the Kool Aid"
Posts: 5496
        Location: Iowa, LA | OregonBR - 2013-07-07 4:15 PM
Thanks for all the information.Β GreatΒ thread! Β
Thanks! And Thanks to appycowgirl for coming on and sharing more info!!!
The more we share, the more people will learn about it and hopefully spend more money at the races collecting checks instead of living at the vets trying to troubleshoot mystery lameness/soreness!! | |
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 "Drank the Kool Aid"
Posts: 5496
        Location: Iowa, LA | Barnmom - 2013-07-07 4:20 PM
annemarea - 2013-07-07 4:06 PM Barnmom,Β
I asked the exact same question since I had been keeping them dry lotted. The vet at LSU could not answer it and my email to the University went unanswered. Not sure what the answer is!
I can try to send another email asking the lady that mailed my results to me and see if I get a response.
Thanks!
I am going to at least have my mare tested forΒ PSSM1, from her pedigree it sure looks likeΒ she may be positive for it.Β Take a look at Slash J Harletta on allbreed, that mare goes back to Mittie Stephens about six times.Β Not trying to pick on that mare (SJH)Β since she is one of the best producers in this industry but certainly something to keep in mind.Β
Thanks so much for this post!Β I knew there was something going on with my mare and she is way too nice to give up on.Β Maybe if I can get her feed program right she will quit trying to randomly launch me out of the saddle.Β Just switching her from a COB mix to Ultium has made a huge change.Β I may have to suck it up and drylot her as much as I hate to. Probably need to look for sugar free cookies too, she would hate me if she didn't get her cookies, LOL.Β
Barnmom,
I've researched all the sugar free/non-filler stuff I could find and I'll share with you my favorite place to by quality sugar free supplements is from Gateway:
http://www.su-perstore.com/
They do carry both kinds so just look at ingredients!
My favorite sugar free electrolytes to keep on hand:
http://www.valleyvet.com/ct_detail.html?pgguid=5faef7d8-2235-440d-b...
My Favorite Low Sugar horse Treats:
http://www.skodeshorsetreats.com/ | |
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 Hog Tie My Mojo
Posts: 4847
       Location: Opelousas, LA | Thank You! | |
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 Regular
Posts: 66
  Location: Burns, WY | Barnmom, on your question about the muscle biopsy. If you do control it by diet and exercise, it will not skew the biopsy results as the muscles do not properly store the glycogen. See, in a regular muscle, the sugar is distributed evenly throught the muscle. In these PSSM horses, the sugar is pooled up in spots in the muscle.
I have some pics on my computer that shows the differences between Type 1 and Type 2 and I'll see if I can attach those pics.
Now, like Annemarea did state about the CK and AST levels coming down when they are controlled properly by diet and exercise and she is correct on that one. What the CK and AST levels represent is muscle damage that is happening to the horse. So when a lot of muscle damage is happening, those levels will be high. When the damage quits happening, those levels will come down and sometimes get back to near normal. Now, elevated CK and AST levels doesn't always mean that a horse is positive for PSSM as CK and AST levels can be elevated because of stress or even RER.
Also, when it comes to MH or PSSM Type 1 testing for horses, that can be done by doing a DNA sample using pulled mane hairs from a horse. So a muscle biopsy is not required to see if your horse has the MH or PSSM Type 1 genes. | |
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 Regular
Posts: 66
  Location: Burns, WY | Now, here is the explanation on the two pics that I uploaded:
This is for the top pic:
"The top two pics are of a stain done on a horse who has PSSM Type1 and the lower two pics are of a stain done on a horse who has PSSM Type 2. The researchers say that Type 1 is more grainy type glycogen storage whereas Type 2 has a more smooth type of glycogen storage within the cells. Also, on the Type 2 notice the caps on the end of the cells.
Also when you do am amylase stain, Type 1 is always resistant against the amylase stain, whereas Type 2 can be digested by the amylase about 50% of the time."
This is for the bottom pic:
"Here is another pic, higher magnification, of the Type 2 muscle biopsy stain and in this pic you can definitely see the end caps on the end of the cells. Even under the amylase stain you can still see the pockets on the ends of the cell."
(Type 2 stain A.jpg)
(Type 2 stain B.jpg)
Attachments ----------------
Type 2 stain A.jpg (23KB - 231 downloads)
Type 2 stain B.jpg (12KB - 221 downloads)
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 Regular
Posts: 66
  Location: Burns, WY | Here is a link for the University of MN, the foremeost researchers on PSSM and if you go down towards the bottom, they actually have pics posted of what a normal biopsy should look like as opposed to one that is PSSM positive. http://www.cvm.umn.edu/umec/lab/PSSM/home.html | |
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 Elite Veteran
Posts: 678
     Location: Canada | Great post! We have a client who has a mare I was convinced had PSSM. We did the AQHA panel and she came back negative. Pulled blood work and she was within normal ranges. I was still convinced she had PSSM so we had the muscle biopsy performed and she came back positive for PSSM2.
So glad we did the test. We had already changed her diet and she had stopped exhibiting symptoms but it was good to know why and take the steps to prevent further episodes and she tends to tie-up badly.
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 "Drank the Kool Aid"
Posts: 5496
        Location: Iowa, LA | Here is the response from Dr. Valberg below:
I don't think the fact that your horse was on a low starch diet would affect the results.regards,
--
Stephanie Valberg DVM PhD Diplomate ACVIM, ACVSMR
University of Minnesota Equine Center | |
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 Elite Veteran
Posts: 615
  Location: Wyoming | appycowgirl - 2013-07-07 12:30 PM
When people are asking about bloodlines in the barrel horses, we just aren't quite sure as we don't have a ton of positive pedigrees to try to figure out possible sources. I have my suspicions of some lines like the mare FL Lady Bug an I have suspected Moon Deck.
I'm not sure how many people are familiar with the mare Ms Wahini Bug? She, herself is positive for PSSM and has 3 foals out there that I know of, Ms Shoo Bug, Ms Perky Bug and Wahini Cash that are positive for PSSM. This mare goes back onto those lines that I suspect. Then, I also know of 2 positive horses from the stallion AR Star and he also goes back onto that Moon Deck and FL Lady Bug line and then on the PSSM Forum we had another barrel horse reported as positive and it was through his sire as the dam tested negative and that sire goes back on Moon Deck.
The University of MN did pedigree research and listed the initials of EC, SDB and PI. We believe the EC to be Eddie Cinco, the SDB to be Sonny Dee Bar and PI to be Pretty Impressive. With the positive pedigrees that we have on the Forum, which is over 250, these names have definitely shown up in many of the positives when it comes to QHs, Paints and Apps. Now, in the Apps, the stallion Dreamfinder is a major suspect as we have numerous sons and daughters and ancestors of his that are coming up positive.
Now, for Dreamfinder, he goes back on a stallion named Roan Hancock who is appearing in numerous positive pedigrees and seems to be the main player in the foundation QHs that are turning up positive. Personally, I do not suspect Joe Hancock himself as there are several other horses with him in their pedigree that are NOT coming up positive, so we suspect that the PSSM probably came through on his dam.
Now, with mentioning Roan Hancock, we have had numerous positives show up that have Two Eyed Jack in their pedigree. I will say that both the Pitzer Ranch manager's wife along with other numerous TEJ owners do not believe that he is not the PSSM problem and they think it is the mares instead that he was bred to. Now, there was a lady who did talk to the ranch manager's wife and she did state that they were breeding P1/P1 mares to their studs that are n/P1 and they do list those positive studs on their website and have listed them in their catalouges. I highly commend Pitzer Ranch for being open and honest on their stud's statuses.
Back here about a month or so ago, I had a lady who shared with me a 199 page dissertation that was written by Dr. Molly McCue and on page 77 it states that most of their PSSM1 positive horses in the research herd, went back onto the stallion WRD and he went back to YJ. Now, we believe that WRD stands for Waggoners Rainy Day and of course he goes back on Yellow Jacket.
Back about a year or so ago, several of the folks on the PSSM Forum, who have been studying these positive pedigrees came out with the thoughts that most of this is coming from three horses, which of course has been mentioned before from the researchers. Those 3 horses are Yellow Jacket, Yellow Wolf and Midnight and all 3 of these horses goes back on the mare Mittie Stephens.
Lately, we have started to have positive pedigrees that have been reported that don't have SDB, PI, EC or even Roan Hancock, but they definitely have one or two or even all 3 of those three suspects that many people on the Forum feel are sources.
The main thing in all of this is that every time we look at any of these pedigrees prior to them being tested, we can see where there is a chance for the horse to test out positive, so the biggest thing is to get people educated about PSSM and to get folks to request testing before purchasing or breeding to someone's stud and to test their mares as well.
Right now, the researchers state that anywhere between 6 to 12% of the QH and QH related breeds are positive for PSSM and out of that, anywhere between 90 to 75% are positive for PSSM Type 1 and the other 10 to 25% are positive for Type 2.
So, it is just best to DNA test and know and if you are having problems with your horse and it does come back negative for Type 1, have your vet do a blood panel and have them specifically test the CK and AST levels. If those are elevated, your next step would be to do a muscle biopsy to check for Type 2.
That is interesting about Eddie Cinco, you don't see Eddie on papers anymore. Do they think Eddie himself is a carrier or is it EC's dam? I own a mare that is Eddie linebred, she is 29 this year and has never had any issues.
http://www.allbreedpedigree.com/doc+o+ten
But it might be worth testing her just to see what the results would be. I have one that I suspect has PSSM, she is a Royal Shake Em/Reckless Dash that I am going to get tested.
http://www.allbreedpedigree.com/miss+royal+fame | |
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Veteran
Posts: 146
 
| I have read so much about this lately and I am sure it has been stated before but I am confused on feeding alfalfa and beet pulp. Is it ok to feed this or is it better to stick to grass hay and add a high protein supplement and oil?
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 "Drank the Kool Aid"
Posts: 5496
        Location: Iowa, LA | Beet Pulp is fine as long as it does not have molasses added to it. TSC carries a beet pulp pellet that is low in NSC's by Standlee. As far as Alfalfa....I stated earlier the difference in it's NSC's. Many people feed it and do fine. I have heard of some that can't tolerate it, but I know that Standlee has a low NSC pellet and cube you can buy at TSC. Generally the regular hay alfalfa is a little higher in NSC's. | |
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 Hog Tie My Mojo
Posts: 4847
       Location: Opelousas, LA | How much does the muscle biopsy run and is it a painful deal for your horse?
Also, can I just go through the local extension agent for hay testing or do I need to go somewhere more specialized?
We feed peanut hay, similar to alfalfa, but I would feel better knowing exactly what is in it since we feed out of the same field year round. | |
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 "Drank the Kool Aid"
Posts: 5496
        Location: Iowa, LA | Barnmom - 2013-07-08 4:21 PM How much does the muscle biopsy run and is it a painful deal for your horse?
Also, can I just go through the local extension agent for hay testing or do I need to go somewhere more specialized?
We feed peanut hay, similar to alfalfa, but I would feel better knowing exactly what is in it since we feed out of the same field year round. Barnmom- My local vet was not familiar with what he would charge me, so I chose to go to LSU where Dr Colin Mitchell is. He has actually worked at UM before, if I remember correctly. He's very familiar with doing the procedure. In order to save me a few dollars, Dr Mitchell had me fill out a credit card authorization form for the UM, so that I could pay them directly for their portion. They charged me $105/per horse and LSU charged me $195 per horse....so right at $300 per horse total. It is about a 5 inch long incision cut at the back of the leg (near the tail) so you can barely see it and in two weeks my mare's looks completely healed. My gelding still has a small hole open at the very center. You are supposed to keep them "quiet" for the two weeks before sutures are pulled, but I ponied my gelding 20-30 minutes a day and kept him turned out in a round pen at night and stalled during the day.
As far as hay testing, you just need to make sure that you ask for the correct things....such as NSC's and probably Selenium. I'm not an expert, but I can include some links that can guide you. Maybe Appycowgirl can chime in...
This website is all about lowering starch in grass/hay and under the links page you can find out who she uses to test: http://www.safergrass.org/index.html
Also another good link to learn about safe pastures/hays: http://www.kohnkesown.com/admin/prod_photos/Image/File/pastures.pdf
This list Peanut hay as having anywhere from 9-20% NSC. Your goal with a PSSM is as close to 10% as you can get. This site also talks about testing and soaking hay to remove sugars: http://aesl.ces.uga.edu/Forms/NSCCircular.pdf
Edited by annemarea 2013-07-08 5:00 PM
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 "Drank the Kool Aid"
Posts: 5496
        Location: Iowa, LA | Here is another forage testing website: http://www.foragetesting.org/index.php?page=certified_labs | |
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