CANINE BLACK HAIR FOLLICULAR DYSPLASIA

CODE: C140

INTRODUCTION:

DESCRIPTION
Follicular dysplasias are a group of syndromes which have in common abnormal hair loss and changes in coat quality. Hair loss starts at an early age and progresses very slowly. The changes are consistent in the different breeds affected, suggesting a genetic connection. Black Hair Follicular Dysplasia is a rare inherited disorder that is seen in mixed-breed and purebred dogs. Hair loss occurs at a very early age in black areas on black or black and white dogs.
Large Munsterlanders occasionally carry the ff alleles for Black Hair Follicular Dysplasia. This disorder results in these dogs that are gray and white instead of black and white. Hair in the gray areas is very brittle and tends to break off within several weeks after it grows in, but hair in the white areas is normal.

INHERITANCE
Black Hair Follicular Dysplasia is inherited as an autosomal recessive trait; therefore two copies of the f allele, one inherited from each parent, have to be present for a dog to be affected by the disease. Carriers (dogs with one copy of the f allele and one copy of the F allele) are clinically unaffected, but can pass the f allele onto their offspring.

DNA TEST
This DNA test provides reliable identification of dogs that carry the f allele. The DNA test allows a breeder to control the f allele frequency in Large Munsterlander thus preventing the production of puppies affected with Black Hair Follicular Dysplasia. This DNA test accurately and specifically identifies normal, carriers (heterozygous) and affected dogs.

BREEDS:
Large Munsterlander

TEST RESULTS: