Long hair(LH)
Also known as: Long coat · Langhaarigkeit · L-Locus · FGF5 gene variant · Long-haired coat
Overview
What it is
This is a natural genetic variation affecting the FGF5 gene, also known as the L-locus, which controls the hair growth cycle in a dog's skin. Instead of signaling the hair follicle to stop growing at a standard length, this variation allows the growth phase to continue, resulting in longer fur. It is inherited in an autosomal-recessive manner, meaning a dog must inherit the variant from both parents, and it is a normal physical characteristic rather than a medical disease.
How it presents
Owners will notice the development of longer, softer fur starting in puppyhood as the adult coat begins to grow. This longer hair is typically most prominent on the ears, tail, and the back of the legs.
Treatment
No medical treatment is required for this harmless cosmetic trait, resulting in a medical cost of 0 EUR. Owners should expect routine, lifelong grooming and brushing to maintain coat health and prevent matting.
How it's tested
L-Lokus (FGF5) DNA-Test(L-Lokus)
Primary testDNA testDer DNA-Test untersucht das FGF5-Gen auf Varianten, die für die Ausprägung von langem Fell (Langhaarigkeit) verantwortlich sind.
Issuing body: Labogen
Result scheme: Clear/Carrier/Affected
Affected breeds
Treatment cost
Estimated range of typical treatment cost. Actual cost depends on severity, clinic and region.
Frequently asked
What is Long hair?
This is a natural genetic variation affecting the FGF5 gene, also known as the L-locus, which controls the hair growth cycle in a dog's skin. Instead of signaling the hair follicle to stop growing at a standard length, this variation allows the growth phase to continue, resulting in longer fur. It is inherited in an autosomal-recessive manner, meaning a dog must inherit the variant from both parents, and it is a normal physical characteristic rather than a medical disease.
How is Long hair tested?
Tests currently in our database: L-Lokus (FGF5) DNA-Test.
Which breeds are most affected?
This condition isn't tied to a specific breed in our database.