International Colored Appaloosa Association, Inc
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International Colored Appaloosa Association, Inc
  • Home
  • What's New
  • About Us
  • Stallion Showcase
    • Stallions A-M
    • Stallions N-Z
  • ICAA Shows
    • ICAA Virtual Show 2025
  • Breed Standards
  • Official Handbook/Bylaws
  • Registration
    • Requirements
    • Ineligible
    • Registry Divisions
    • Genetic Testing/DNA
    • What to Submit
    • Calculating Level
    • Photo Do's and Don'ts
  • Forms
  • Online Payment
  • ICAA Officials
    • Official's Contact Info
    • Bios
  • Sale Files
  • Programs
    • Open Show
    • Distance
    • Horsemanship
    • Production Achievement
    • ICAA Affiliated Reg Assn
  • Publications
    • Newsletters
    • Articles
  • FAQ's
  • Appaloosa History
  • ICAA Merchandise
  • Links
  • Contact Us

Registration Requirements

  • A horse’s sire and dam must both be registered with the ICAA, ApHC, ApHCC, or another Appaloosa registry approved by the ICAA  unless gelded or spayed.


  • Height must be at least 14 hands, standing barefoot, at five years of age.
     
  • All horses must have a negative 6-Panel test result for genetic diseases, or both parents must be verified as negative per the ICAA rules.  This requirement varies somewhat for geldings.  


  • All stallions and mares must have a DNA Profile (ISAG+) on file with Animal Genetics (AGI) under our account.

Genetic Testing

Various Coat Patterns/No Coat Pattern

Stars Sugar N Spice F2-2750, Leopard

Charactertics/effect of lp/lp/non-appaloosa striping

The Three Appaloosa Characteristics

Appaloosas that carry the LP gene have three basic characteristics:


  • Mottled Skin
  • White Sclera
  • Striped Hooves


Sometimes at birth, some of these may be subdued and develop more with age.  Mottled skin is most often seen where there is no hair, or the hair is very thin, such as the muzzle, around the eyes, under the tail, and on the sheath or udder.  The eyes have white sclera encircling the iris like a human eye.  The hooves have vertical striping as shown in the photos below.  


Horses who look phenotypically solid will be registered with an "N" after the F-level (such as F5N-xxxx) unless they show these three characteristics, or test positive for LP.   You may need to show clear photos of these three characteristics when registering a horse whose Appaloosa coat pattern is missing or marginal.  


See the photos below of the three characteristics.  In the next section, you will see the effects of the LP gene in its homozygous form on the color of the hooves.  


NOTE: Horses do not have Appaloosa striped hooves on legs with white leg markings.   If they have striping, it is the result of ermine marks at the coronet band (see last section).  

Three Characteristics

Chelseas Honey Whirl F2-2743, Mottled Skin and White Sclera

The Effect of LP/LP on Hooves

When a horse is homozygous for the LP gene (LP/LP), many times the hooves are a shell color with very light striping, even on horses with black legs, such as in the photos below.  

Shell Colored Hooves on LP/LP Horses

 Fewspot Knabstrupper owned by Renee Dubyk 

Ermine Marks

Some horses with white leg markings have ermine marks.  If there is any color pigment that touches the coronet band, it can send dark stripes down into the hoof.  These are not Appaloosa striped hooves.  

Effect of Ermine Marks on White Legs/Not Appaloosa hooves

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