With our new marking system we will showcase a different feature each month.
For the month of August I have chosen Midnight
Midnight is a foundation Quarter Horse who has been tossed around as a source for both PSSM1 and PSSM2. The people responsible for making the PSSM1 test put out a mysterious paper linking a horse to PSSM2 with the initials PM - they also had a pedigree without horses names on it but which showed offspring. When that paper first came out I spent a lot of time attempting to trace that horse -- oddly even though it was a needle in a haystack I managed to find that Midnight fit the pedigree very well and his sire is PM - Peter McCue. So is Midnight a source for PSSM2? Who knows? But for fun this month every pedigree you search will have a DARK BLUE Mark for every horse in that pedigree that goes back to Midnght. You will find a lot of horses go back to Midnight. It is very interesting to see and I hope you like this feature. The Feature Mark will not appear in the legend at the bottom of the Pedigree screen - this is the only place the mark is identified.
Go ahead - take this feature for a spin members - search your horse and see how often Midnight appears. You can click each one with a dark blue mark and follow it back until you hit Midnight to see how he fits into your pedigree.
Great Example if you don't know a horse to start with? Try my stallion Dulys Razz - he goes back to Midnight with every horse in his pedigree.
Have Fun with it! If you think this is a fun feature - like this article with our new like buttons.
Is there a horse you would like to see featured? Message me or email me and I'll see if I can make it happen.
Our new software is up and running and seems to be working well. It is definitely a better experience if you use a computer to access the online database - we have worked on a work around toget it to work on cel phones as well and it;s a bit clunky but it does work - the search button is at the bottom and is not as streamlined as the full site one but it does work. While the new system with the marks will likely be confusing at first we hope as you use the site more you will find it very helpful.
So sorry for the hassle caused by the recent software misshap. If anyone is still having trouble logging on please email me so I can get it sorted out for you.
We have had IMM listed in our list of Genetic Issues under "Other Genetic Issues" for a while now but thought since the recent release of a readily available "For Purchase" test has brought a lot more notice to this disease we would publish an article on it.
Have you ever had a horse that lost a drastic amount of weight in a very short time? Was it just after you vaccinated it or it came down with Strangles? Good chance the horse had a mutated gene which caused that issue.
IMM stands for Immune-mediated myositis - it is a dominant disease and you can have a genetic test done on your horse to see if it carries a copy of the mutated gene. Even though it is dominant (meaning it only needs one copy to show symptoms) many horses that have this mutation never show any signs. That is because it seems to need a trigger. Right now known triggers are Strangles and certain vaccines.
An IMM horse having an attack will rapidly lose muscle along the backbone - to the pont where you can see the skeleton. This happens within 2 days to 2 weeks, It is treatable with Corticosteroids - and should be treated ASAP. Once treated, horses can usually come back to their original weight within a few months.
So far, the IMM MYH1-E321G variant has only been found in Quarter Horses, but it seem to be fairly widespread in the cutting and reining lines.
IF you own a horse that fits the description above (rapid muscle loss after an infection or vaccination, especially over the back and hind end muscles) seek help from a veterinarian.
We most PSSM results on Quarter horses in the Members online database as AQHA has now made those results accessible to the public anyway. We also publish all PSSM 2 results that are on the equiseq website under public horses. We will also publish all results that have been made public in forums, on allbreed, on websites, etc.
Our Policy does remain the same that if you do not want your horses information in the Members online database you just need to send us a polite message requesting your results remain private. Your horse's name will appear in the search engine but the pedigree and information will not display. Since the inception of our database we have been dealt with the issue of trying to make sure no horses were published that the owners wanted to remain private but in doing so there are thousands of horses that the owners really dont care if their info is published, we just can't contact everyone. So in light of the fact that the information is available anyway we will now be releasing many more horses into the online database. Again, if you do not want your horse there, just let us know. All previous horses who's owners have requested privacy for will not be released.
With the info readily available from AQHA we now have a lot more 5 panel stats on a lot more stallions in the database making it easier to try to track where PSSM has come from on horses who were never tested, and also making it easier for those who want to use nn stallions to check their status.