PSSM

PSSM In The Horse


What is PSSM?


Polysaccharide storage myopathy (PSSM) is characterized by the abnormal accumulation of muscle glycogen. Glycogen is the storage form of sugar in muscles. This abnormality in glycogen metabolism damages skeletal muscle and leads to painful episodes of tying up. There are two forms of PSSM: Type 1 and Type 2. Type 1 PSSM is genetic and is caused by a gene mutation. The cause of Type 2 PSSM has yet to be identified.


Fight PSSM With ProElite Today!

PSSM Horses in a pasture next to a fence

..management of a PSSM diet includes strict limitations of sugar and starch in any form. Excel is a perfect supplement for these horses because it contains no sugar."

What are the clinical signs of PSSM?


Horses with PSSM typically have calm dispositions and are in good body condition. The clinical signs of a PSSM episode are typically associated with tying-up. These signs are most commonly muscle stiffness, sweating, and reluctance to move. The signs are most often seen in horses when they are put into initial training or after a lay-up period.

How do you diagnose PSSM?


PSSM can be diagnosed based on microscopic evaluation of a muscle biopsy in horses over two years-of-age, however, a definitive diagnosis of the type 1 form of PSSM requires genetic testing.

Man Standing With Brown PSSM Horse and Bucket

What can you do for treatment and prevention?


Carbohydrates that are high in starch, such as sweet feed, corn, wheat, oats, barley, and mo- lasses, appear to exacerbate PSSM. Thus management includes strict limitations of sugar and starch in any form.

Extra calories can be provided in the form of fat. Oils that provide balanced omega 3 to omega 6 fatty acids, like ExcelEQ ProElite can be a healthy alternative energy source that can aid in the stabilization of blood sugar. Fat is an important caloric supplement especially for the performance PSSM horse that requires additional energy reserves. In addition to grains, the sugar content in forage must be taken into consideration. High sugar content in hay can trigger a horse’s insulin response. It is important to select and feed hay that contains less than 10 percent NSC (sugar). Horses with PSSM may not be able to graze especially on lush green pasture.

Another important part of the management of PSSM horses is daily exercise. This enhances glucose utilization, and improves energy metabolism in skeletal muscle. If only the diet is changed, researchers found that approximately 50% of horses improve. If both diet and exercise are altered, then 90% of horses have had no or few episodes of tying-up. When designing a diet for horses with PSSM there are several important considerations and it is advised to consult an equine nutritionist.
Back to blog
  • 3 Myths About Camelina Oil

    3 Myths About Camelina Oil

    Let's break down these three common myths about camelina oil...#1 All camelina oil is the sameFALSE! No oil- olive, vegetable, fish or camelina, is the same.Here's why...First, having quality sourcing...

    3 Myths About Camelina Oil

    Let's break down these three common myths about camelina oil...#1 All camelina oil is the sameFALSE! No oil- olive, vegetable, fish or camelina, is the same.Here's why...First, having quality sourcing...

  • Your Four Legged Valentine

    Your Four Legged Valentine

    Happy Valentines Day! The roses and chocolate waiting for you at home or being delivered to your office holiday. If your household is anything like mine then you may get...

    Your Four Legged Valentine

    Happy Valentines Day! The roses and chocolate waiting for you at home or being delivered to your office holiday. If your household is anything like mine then you may get...

  • Excel’s Camelina Oil: The company started by a horsewoman

    Excel’s Camelina Oil: The company started by a ...

    Excel Supplements started with a horse woman, her horse, and a problem that wasn’t getting solved. After meeting the right partner with extensive camelina farming connections, Excel was born. We...

    Excel’s Camelina Oil: The company started by a ...

    Excel Supplements started with a horse woman, her horse, and a problem that wasn’t getting solved. After meeting the right partner with extensive camelina farming connections, Excel was born. We...

1 of 3

Equine Products

1 of 3
  • ExcelEQ ProElite Omega 3 Supplementation in Weanlings

    ExcelEQ ProElite Omega 3 Supplementation in Wea...

    ExcelEQ ProElite Omega 3 Supplementation in Weanlings Background: Omega-3 fatty acids are a family of essential fatty acids with many biological activities. These fatty acids are incorporated into cell membranes,...

    ExcelEQ ProElite Omega 3 Supplementation in Wea...

    ExcelEQ ProElite Omega 3 Supplementation in Weanlings Background: Omega-3 fatty acids are a family of essential fatty acids with many biological activities. These fatty acids are incorporated into cell membranes,...

  • ProElite Oil Supplementation on Lactate Values

    ProElite Oil Supplementation on Lactate Values

    Affect of ProElite Oil Supplementation on Lactate Values during Endurance Race Competition Background: Blood lactate is one of the most often measured parameters during clinical exercise testing as well as...

    ProElite Oil Supplementation on Lactate Values

    Affect of ProElite Oil Supplementation on Lactate Values during Endurance Race Competition Background: Blood lactate is one of the most often measured parameters during clinical exercise testing as well as...

  • ExcelEQ ProElite Oil Therapy and Gastrointestinal Health Study

    ExcelEQ ProElite Oil Therapy and Gastrointestin...

    ExcelEQ ProElite oil therapy and gastrointestinal health using stall side fecal occult blood testing Background:  It is well known that most performance horses in training or competition suffer from discomfort...

    ExcelEQ ProElite Oil Therapy and Gastrointestin...

    ExcelEQ ProElite oil therapy and gastrointestinal health using stall side fecal occult blood testing Background:  It is well known that most performance horses in training or competition suffer from discomfort...

1 of 3