What Does Nn Mean In Horses?

Type of Test

What does NN mean in horse genetics?

NN – Horse is fully pigmented (no cream gene). CH. Champagne. CHCH – Homozygous champagne. Red pigment is diluted to gold and black pigments are diluted to chocolate.

What does N PSSM1 mean?

Mode of Inheritance: Autosomal dominant. Alleles: N = Normal, PSSM1 = Polysaccharide Storage Myopathy Type I. Breeds appropriate for testing: Quarter Horses and related breeds including Paint Horses, Appaloosas, and Pony of the Americas.

What does N GBED mean?

Phenotype: Glycogen branching enzyme deficiency (GBED) is an inherited disease found primarily in Quarter Horses and related breeds in which the inability to correctly store glycogen is fatal for foals. Mode of Inheritance: Autosomal recessive. Alleles: N = Normal/Unaffected, G = Glycogen branching enzyme deficiency.

What is PSSM positive in horses?

Polysaccharide storage myopathy (PSSM) is a disease that results in an abnormal accumulation of glycogen (sugar) in the muscles. Clinical signs may include reluctance to move, sweating, and muscle tremors, also known as “tying-up”.

What is a 5 panel NN horse?

The 5 Panel Test covers, shockingly, 5 major genetic disorders common in Quarter Horses, Appaloosas, and Paints: Hyperkalemic Periodic Paralysis (HYPP), Polysaccharide Storage Myopathy type 1 (PSSM 1), Malignant Hyperthermia (MH), Hereditary Epidermal Regional Dermal Asthenia (HERDA), and Glycogen Branching Enzyme

What does HERDA N N mean?

After being tested, the results either show “normal”, “carrier” or “affected” and can be determined by DNA testing of either a blood or hair sample. N/N — Normal: does not have the HERDA gene. N/HRD- Carrier: carries one copy of the gene. HRD/HRD- Affected: has two copies of the gene.

What is N GB horse?

2. n/Gb. This means your horse is a carrier of the disease and has one copy of the GBED mutation. If bred, this horse has a 50 percent chance of passing the disease on to its offspring.

How do you tell if a horse has the HERDA?

Signs of HERDA include stretchy skin, severe skin wounds and scarring along the back and withers. The American Quarter Horse Association requires all breeding stallions be tested for HERDA. There is no cure or treatment for horses with HERDA.

What is an outcross horse?

If the definition of an inbred horse is one that has at least one duplicated ancestor between the parents within four generations, then an outcrossed one has no closely duplicated ancestors at all.

Is PSSM the same as tying-up?

“Tying-up disease,” a form of which is called polysaccharide storage myopathy (PSSM), is an inherited metabolic muscle problem that occurs in many horse breeds. PSSM horses display muscle tremors, gait abnormalities, and tying-up symptoms when they are exercised.

Can you still ride a horse with PSSM?

Once conditioned, some PSSM1 horses thrive with 4 days of exercise as long as they receive daily turn out. For riding horses with type 2 PSSM1, a prolonged warm-up with adequate stretching is recommended.

Can horses with PSSM eat grass?

Forage and feed choices for PSSM horses are centered on minimizing sugar and starch intake. Forage requirements. Forage can be supplied as pasture, hay, or hay alternatives such as pellets or cubes. Well-maintained pastures should contain low-sugar grasses and few legumes (clover, alfalfa or lucerne).

What bloodlines carry HYPP?

The bloodline of the stallion Impressive dominated the American Quarter Horse world for many years. Today it is well known as a direct link to a genetic illness called HYPP or hyperkalemic periodic paralysis. This disease causes the muscle cells in a horse to be unable to handle any potassium that they eat.

Can you register a Quarter Horse without papers?

Part of AQHA’s mission statement is to record and preserve the pedigree of the American Quarter Horse while maintaining the integrity of the breed and welfare of its horses. Because of this, a horse cannot be registered without knowing the sire and dam.

How much is a 5 panel test for horses?

Test kits for the five panel test can be obtained by request from the AQHA. For members, the test will cost $85. Nonmembers will pay $125. A five panel test in conjunction with the regular DNA test required for breeding stock will be $105 for members, $145 for nonmembers.

Can a horse live with HERDA?

Signs also typically worsen over time. Unfortunately there is no known treatment or cure for HERDA, and the majority of horses affected are euthanized within 2-4 years as their condition worsens and the wounds become unmanageable or fatal.

What is MH horse?

What is malignant hyperthermia? Malignant hyperthermia (MH) is a rare inherited autosomal dominant disease. It causes a life-threatening condition in susceptible horses triggered by anesthesia drugs (such as halothane, isoflurane, and succinylcholine), and occasionally by stress or excitement.

What is HERDA N HRD?

HERDA is caused by a recessive variant of the PPIB gene (PPIB-G39R). The recessive allele is commonly abbreviated as Hrd, with the dominant wild-type allele abbreviated as N. Carriers of the recessive allele (N/Hrd) have no symptoms of the disease.

What bloodlines carry GBED?

GBED is found in Quarter Horse or related bloodlines that causes late-term abortion or death of foals by a few months of age.

How do you test a horse in PSSM?

You can test your horse for PSSM 1 through the University of Minnesota’s Veterinary Diagnostic Laboratory. Here they can perform DNA blood or hair tests. Muscle biopsies are required to test for PSSM 2. You should consider a muscle biopsy for horses with muscle pain if they test negative for PSSM 1.