by By the American Morgan Horse Association | 4/2/2009 10:41:00 AM
The University of Minnesota is performing a study on tying up in Morgan horses. One cause for tying up in horses of all breeds is type 1 Polysaccharide Storage Myopathy (PSSM), for which there is now a genetic test that uses blood or hair roots. (For more information about the test, go to www.cvm.umn.edu/umec/lab/Advances_in_PSSM.html .) However, there are horses that appear to have a type 2 form of PSSM, which, at present, can only be diagnosed by muscle biopsy. The University of Minnesota is...